Disclosed is a device for providing a process gas atmosphere during a manufacturing process of a three-dimensional object. The device includes a gas circulation system having a gas circuit that is closed during operation, a filter system having a plurality of filter chambers that is arranged in the closed gas circuit, and at least three filter chambers for filtering particles in the gas circuit. The device also includes a gas control device that separates a number of filter chambers from the gas circuit during the ongoing manufacturing process and that can ensure that a number of filter chambers remaining in the gas circuit exceeds the number of filter chambers separated from the gas circuit.
Disclosed is a manufacturing method for the additive manufacturing of at least one component of an electrochemical device. The method can include providing a support device in the form of a support belt, applying at least one layer of the build-up material to the support belt, and supplying the build-up material to an irradiation area of at least one first, irradiation unit and at least partially solidifying, the build-up material on the support belt with the at least one first irradiation unit.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The invention relates to a process for preparing an aged building material from a process for additively manufacturing a three-dimensional object, wherein the preparation process comprises: mixing i) an aged building material from a process for additively manufacturing a three-dimensional object, wherein: the process for additively manufacturing a three-dimensional object comprises providing a building material layer by layer and selectively solidifying the building material layer by layer by the action of electromagnetic radiation, emitted by a radiation source, at positions in each layer that correspond to the cross section of the object in this layer; and the non-solidified building material is detached and forms the aged building material, and ii) a fresh building material for additively manufacturing a three-dimensional object, wherein: a prepared building material for additively manufacturing a three-dimensional object is formed; the aged building material and the fresh building material each contain a polymer and at least the fresh building material contains an amorphous silicon dioxide; and the ratio based on percent by weight of aged building material to fresh building material is greater than 60:40.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
The invention relates to a method for the additive manufacture of manufacturing products (2), wherein construction material is applied in layers in a construction field (8), and, between the application of two material layers of construction material, construction material is solidified by means of radiation at points which correspond, in each case, to a respective cross-section of the manufacturing products (2), the manufacturing method having the following steps: - in a first manufacturing phase, product layers (2a) of the manufacturing product (2) are manufactured, the radiation being controlled according to a heating profile (E) which is designed such that a specified target temperature (S) of the last manufactured product layer (2a) is reached within a maximum number of layers, and - in a second manufacturing phase, additional product layers (2a) of the manufacturing product (2) are manufactured, the radiation being controlled according to a temperature profile (T) which is designed such that a specified target temperature (S) is maintained. The invention also relates to control device and to a manufacturing device.
Disclosed are aluminium alloys in powder form, which include up to 8 wt.-% Ni and up to 4 wt.-% Fe. Corresponding alloys provide for a beneficial combination of high conductivity, moderate strength, good wear resistance and good stability at temperatures of up to 250° C. The powder has a particle size d50 of from 2 to 90 μm, which makes the powder particularly suitable for powder bed based additive manufacturing processes. Further disclosed are processes for the production of such aluminium alloy powders, methods for the production of three-dimensional objects using corresponding aluminium alloy powders and three-dimensional objects prepared accordingly, and combinations of devices for the production of such three-dimensional objects and corresponding aluminium alloy powders.
B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
Disclosed is a method and a device for generating optimized process variable values for an additive manufacturing process of a manufacturing product. For this purpose, requirement data of the manufacturing product is provided. An optimization process is then carried out in order to determine the optimized process variable values while taking into consideration the requirement data, wherein at least one optimized scanning direction distribution for at least one region of the manufacturing product is determined as an optimized process variable value using an AI-based optimization unit. The optimized process variable values are then provided. Further disclosed is a method and a control data generating device for generating control data, to a method for creating an AI-based optimization unit, to a control method, and to a controller for a production device for the additive manufacturing process, and to a corresponding production device.
The invention relates to a method for improving the quality of a layer-by-layer additively manufactured object (2), which is manufactured from a geometric model (M) by solidifying construction material in specified manufacturing layers (F, F+, F-) by means of an energy beam (22), said method comprising the following steps: providing model data (MD) comprising geometric data of the model (M); defining positions of the manufacturing layers (F, F+, F-), wherein two adjacent manufacturing layers (F, F', F -) lie parallel to one another at a distance A; selecting a number of critical structures (S) of the model (M) on the basis of the model data (MD) and/or an already manufactured object (2) and/or process control data (PS); generating a number of filling regions, wherein each filling region (B) comprises a surface in the position of a manufacturing layer (F), which completely covers at least one vertical projection of a sub-region of a selected critical structure (S) between the positions of said production layer (F) and an adjacent production layer (F+, F-), and filling regions (B) of contiguous sub-regions of a selected critical structure (S) overlap in positions of adjacent manufacturing layers (F, F+, F-) in a vertical projection; using the filling regions (B) to modify the model (M) and/or to modify layer data (SD) of the model (M) and/or control data in order to manufacture an object (2) on the basis of the model (M). The invention also relates to a device, layer data, a control unit and a manufacturing device.
G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing
G05B 19/42 - Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine
B22F 10/38 - Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
8.
POLYMER POWDER WITH LOW DUSTING TENDENCY FOR THE ADDITIVE MANUFACTURING OF THREE-DIMENSIONAL OBJECTS
The invention relates to a polymer powder for use as a construction material for the additive manufacturing of a three-dimensional object by selectively solidifying a construction material on the cross-sectional areas of the three-dimensional object in the corresponding layers, wherein the polymer powder has a proportion of substantially cylindrical particles of at least 40 wt.%, based on the total weight of the particles, the particles contain an absorber which absorbs light in the wavelength range from 400 nm to 3000 nm and/or in the range from 4800 to 8300 nm, and wherein the powder has a dust index of 15 or less and/or a dust area of 50 or less. Using corresponding polymer powders makes it possible to achieve a significant improvement in the process stability during the processing of the powders and improved properties of a three-dimensional object produced from the powder. The invention also relates to a method for producing three-dimensional objects, in which method said polymer powders are used, and to production systems for such three-dimensional objects, which production systems contain such polymer powders as construction material.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The present invention relates to methods for producing three-dimensional objects (3) from powdered amorphous thermoplastics in powder-bed-based additive manufacturing, in which the radiation source (7) allows planar exposure and the plastic powder has increased absorption compared to conventional plastic powders. The invention further relates to plastic powders that are formulated for use in corresponding methods, to methods for producing such plastic powders, to correspondingly produced three-dimensional objects that can be produced according to the specified method, and to systems for producing such three-dimensional objects. By adding an absorber to the amorphous polymer, an improved heating behaviour of the amorphous polymer is achieved, which allows such polymers to be processed using planar exposure systems without semi-crystalline or crystalline polymers having to be added for this purpose.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/268 - Arrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB]
B29C 64/291 - Arrangements for irradiation for operating globally, e.g. together with selectively applied activators or inhibitors
The invention relates to a method for creating layer data (S) for the layer-by-layer additive manufacturing of an object (2) from a geometric model (M) by solidifying manufacturing layers (F), said method comprising the steps of: providing model space data (D) comprising at least geometric data of the model (M) and/or a negative mask of the model (M); defining a scanning specification which indicates how a model space (M) is scanned in different scanning areas (A1, A2, A3, A4); creating a subset (B) for each scanning area (A1, A2, A3, A4), wherein the model space data (D) is scanned in the scanning areas (A1, A2, A3, A4) and the parts of a scanning area (A1, A2, A3, A4) in which the model space data (D) has the same predefined spatial relationship to the model (M) are assigned to the respective subset (B); generating a number of target sets by combining created subsets (B) of difference scanning areas (A1, A2, A3, A4); creating layer data (S) for a plurality of manufacturing layers (F), wherein at least one of the manufacturing layers (F) is assigned a printing area based on a number of the target sets. The invention also relates to a device, layer data, a control unit and a manufacturing device.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/268 - Arrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB]
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
Disclosed is a method for providing control data for manufacturing a three-dimensional object including accessing computer-based model data of at least one portion of the object, at least one data model specifying the scanning of locations of the region to be selectively solidified, using at least one beam along a first trajectory and a second trajectory substantially parallel thereto, the motion vectors of the beams in the construction plane having mutually opposite directional components during the scan along the two trajectories, and the distance between a starting point of the second trajectory and an end point of the previously scanned first trajectory is less than half a beam width of the beam at the end point of the first trajectory; and providing control data of the at least one data model for the generation of a control data set.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The invention relates to polymer powders for use as building materials for the production of three-dimensional objects, which polymer powders have a core-shell structure, wherein the compositions of the core and of the shell are adapted to achieve uniform meltability of the powder particles in an additive manufacturing process. In this way, for example, improved layer bonding is achieved in the context of the production of three-dimensional objects. The present invention further relates to methods for producing such polymer powders, to methods for producing three-dimensional objects from such powders, and to corresponding three-dimensional objects, and to the use of corresponding polymer particles for improving the melting and processing properties when processing the polymer particles to form a three-dimensional object.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
Disclosed is a method for controlling an energy input device of an additive manufacturing device. A beam bundle deflection center is assigned to each of the number of beam bundles from which this beam bundle is directed onto the build plane beam bundle deflection center is assigned a projection center corresponding to a perpendicular projection of the position of the beam bundle deflection center onto the build plane directions of the movement vectors of the number of beam bundles when scanning the trajectories are defined such that at each of the solidification points in this section the movement vector has an angle with respect to a connection vector from this solidification point to the projection center of the beam bundle used, which angle is smaller than a predetermined maximum angle γ1.
A method for providing control data for an additive manufacturing device has: a first step (S1) of accessing model data of at least one section of the object; a second step (S2) of generating at least one data model, the beam being moved along a trajectory, in each case without interrupting the supply of radiation energy to the layer, each of the trajectories having a number of first sub-trajectories (74a, 84) and a number of second sub-trajectories (75, 85), the angle formed between a sub-trajectory and the sub-trajectory following said sub-trajectory being greater than 90° and less than or equal to 180°, the beam being moved alternatingly along first and second sub-trajectories, a respective transition trajectory being specified between pairs of sub-trajectories, a value for the movement speed of the beam being specified for the transition trajectories, said value differing from the average value along the sub-trajectory connected to the respective transition trajectory; and a third step (S3) of providing control data for the manufacturing process.
G05B 19/4097 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
15.
HATCH STRATEGY DURING THE PROCESS OF SOLIDIFYING CONSTRUCTION MATERIAL IN AN ADDITIVE MANUFACTURING PROCESS
The invention relates to a computer-aided method for providing control data for an additive manufacturing device (1), having: a first step (S1) of accessing computer-based model data of at least one section of the object to be manufactured; a second step (S2) of generating at least one data model of a region to be solidified of a construction material layer, movement vectors of the at least one beam on the construction plane being specified in the data model in order to scan locations of the region to be solidified along a plurality of trajectories, the trajectories being specified such that the distance between adjacent trajectories is always greater than or equal to 5 µm and/or less than or equal to 350 µm and, at the same time, the beam is moved along the adjacent trajectories at a speed which is greater than or equal to 300 mm/s and/or less than or equal to 3500 mm/s; and a third step (S3) in which control data corresponding to the data model generated in step (S2) is provided in order to generate a control data set for the manufacturing device.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
16.
ADDITIVE MANUFACTURING PROCESS USING PULSED LASER RADIATION
An additive manufacturing method includes applying a layer of building material on a support or a layer of building material that has been previously selectively solidified, selectively solidifying the layer of building material by supplying laser radiation to positions in the layer that are assigned to a cross-section of the object in this layer in that these positions are scanned with a laser beam along a number of trajectories in order to melt the building material along these trajectories, and repeating the two steps of applying a layer and solidifying said layer until the cross-sections of the object that are to be manufactured by additive manufacturing have all been selectively solidified. Pulsed laser radiation is used for melting the building material and the laser beam can be moved across the layer of building material with a speed exceeding 1000 mm/s.
B22F 12/43 - Radiation means characterised by the type, e.g. laser or electron beam pulsedRadiation means characterised by the type, e.g. laser or electron beam frequency modulated
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 12/90 - Means for process control, e.g. cameras or sensors
Disclosed is a specific Ni-base superalloy, preferably in powder form, comprising at least 7.00 to 24.00 wt.-% Cr, 5.00 to 20.00 wt.-% Co, 0.00 to 5.00 wt.-% Fe, 0.00 to 10.00 wt.-% W, 0.00 to 3.00 wt.-% Nb, 0.00 to 10.00 wt.-% Mo, 0.00 to 6.00 wt.-% Ti, 0.50 to 6.00 wt.-% Al, 0.00 to 9.00 wt.-% Ta, 0.00 to 0.20 wt.-% C, 0.00 to 0.20 wt.-% Zr, 0.00 to 2.00 wt.-% Hf, 0.00 to 0.50 Si wt.-% and 0.00 to 0.20 wt.-% B, wherein the balance is Ni and unavoidable impurities. Further disclosed are processes for the manufacture of such Ni-base superalloy powders, processes and devices for the manufacture of three-dimensional objects, three-dimensional objects prepared by such processes and devices and the use of such a Ni-base superalloy in powder form for minimizing and/or suppressing microcrack formation in a three-dimensional object and/or for providing improved ductility and rupture life in creep conditions.
C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
The invention relates to a method for improving the bonding of a thin structure (W) to an extended volume in an object (2) produced layer by layer on the basis of a virtual three-dimensional object model (M) by solidifying a pulverulent building material using radiation, said method having the steps of: - ascertaining the number of connection points (A) in the object model (M) at which a structure (W) with a thickness below a specified threshold connects to a volume boundary (B), the thickness of which exceeds a specified threshold, - specifying a manufacturing mode (F) for a number of ascertained connection points (A) such that, for a connection point (A) of a structure (W) for connecting to a volume boundary (B), the contact surface between the structure (W) and the volume boundary (B) is enlarged and/or a profile of beam parameters for manufacturing the structure (W) is specified and/or a manufacturing sequence is specified, according to which the structure (W) is manufactured prior to or at the same time as the manufacture of the corresponding volume boundary (B), and - changing the object model (M) and/or generating control data (PS) for manufacturing an object (2) from the object model (M) according to the specified manufacturing mode (F). The invention also relates to control data, to a device, and to a manufacturing device.
B22F 10/38 - Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/36 - Process control of energy beam parameters
B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The invention relates to a method for generating control data (PS) for a device (1) for additive manufacturing of a component (2) in a manufacturing process, in which building material (13), preferably comprising a metal powder, is built up layer by layer in a construction field (8) by selective solidification of building material (13) by irradiation of the building material (13) with at least one energy beam (22), the method comprising the steps:
recording of a process room sensor data set (SD) with spatially resolved thermal data of a currently solidified component layer (B),
providing a process room control data set (KD) with an intended shape (F) of the currently solidified component layer (B),
defining a number of special areas(S) in the intended shape (F),
assigning the number of special areas(S) to corresponding areas in the process room sensor data set (SD),
generating a correction factor module (KK), wherein correction factors (KF) in the special areas(S) are generated according to different rules than in other areas of the intended shape (F) outside the special areas(S),
correcting control data (PS) for the additive manufacturing of a subsequent component layer (B1) based on the correction factor module (KK),
outputting the corrected control data (PS) to a device (1) for additive manufacturing of a component (2).
The invention relates to a method for generating control data (PS) for a device (1) for additive manufacturing of a component (2) in a manufacturing process, in which building material (13), preferably comprising a metal powder, is built up layer by layer in a construction field (8) by selective solidification of building material (13) by irradiation of the building material (13) with at least one energy beam (22), the method comprising the steps:
recording of a process room sensor data set (SD) with spatially resolved thermal data of a currently solidified component layer (B),
providing a process room control data set (KD) with an intended shape (F) of the currently solidified component layer (B),
defining a number of special areas(S) in the intended shape (F),
assigning the number of special areas(S) to corresponding areas in the process room sensor data set (SD),
generating a correction factor module (KK), wherein correction factors (KF) in the special areas(S) are generated according to different rules than in other areas of the intended shape (F) outside the special areas(S),
correcting control data (PS) for the additive manufacturing of a subsequent component layer (B1) based on the correction factor module (KK),
outputting the corrected control data (PS) to a device (1) for additive manufacturing of a component (2).
The invention also relates to corresponding control data, a method for additive manufacturing, a control data generation device, a control device and a manufacturing device.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
01 - Chemical and biological materials for industrial, scientific and agricultural use
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
37 - Construction and mining; installation and repair services
Goods & Services
Chemicals; Unprocessed plastics; Plastics; Synthetic resins, unprocessed; Synthetic resins; ceramic composites; All the aforesaid goods being in relation to additive manufacturing (generative production processes); All the aforesaid materials being in particular in the form of granules and/or powder; Foundry sand; Pastes containing metal-filed glass for use in industry. Common metals and their alloys; Ores of metal; Metal hardware; Semi-finished goods, namely Parts containing metal; Metal containers for storage or transport; Metals in powder form; Powders of or containing metal for sintering; Alloys of metal; Parts and fittings for the aforesaid included in the class. Manufacturing machines; Machine tools; Power operated tools; Machines for generative production processes [additive manufacturing]; Parts and fittings for all goods mentioned, as far as they are included in this class. Varnishing; Furbishing of objects; Mechanical services, namely Repair and maintenance of machines and installations; Installation, maintenance and repair of machinery; Leasing and rental of objects in connection with the providing of the aforesaid services, included in this class; Consultancy and information in relation to the aforesaid services, included in this class.
01 - Chemical and biological materials for industrial, scientific and agricultural use
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
37 - Construction and mining; installation and repair services
Goods & Services
Chemicals; Unprocessed plastics; Plastics; Synthetic resins, unprocessed; Synthetic resins; ceramic composites; All the aforesaid goods being in relation to additive manufacturing (generative production processes); All the aforesaid materials being in particular in the form of granules and/or powder; Foundry sand; Pastes containing metal-filed glass for use in industry. Common metals and their alloys; Ores of metal; Metal hardware; Semi-finished goods, namely Parts containing metal; Metal containers for storage or transport; Metals in powder form; Powders of or containing metal for sintering; Alloys of metal; Parts and fittings for the aforesaid included in the class. Manufacturing machines; Machine tools; Power operated tools; Machines for generative production processes [additive manufacturing]; Parts and fittings for all goods mentioned, as far as they are included in this class. Varnishing; Furbishing of objects; Mechanical services, namely Repair and maintenance of machines and installations; Installation, maintenance and repair of machinery; Leasing and rental of objects in connection with the providing of the aforesaid services, included in this class; Consultancy and information in relation to the aforesaid services, included in this class.
22.
Calibration System for an Energy Beam of an Additive Manufacturing Device
Disclosed is a calibration system for an energy beam of an additive manufacturing device. The calibration system includes an additive manufacturing device with a beam inlet, a gas supply, and a measuring unit for detecting a beam property of the energy beam. In addition, the calibration system includes a calibration aid with a hollow space and an inflow opening for introducing the gas into the hollow space. The calibration aid is arranged in the additive manufacturing device and the energy beam is surrounded by the hollow space from the beam inlet to the measuring unit. For calibration purposes, the gas flows into the hollow space. Further disclosed is a method for calibrating an energy beam and to the use of a calibration aid for calibrating an energy beam.
Disclosed is a method for generating irradiation control data for an additive manufacturing device. The method includes providing a component dataset includes geometry data of at least one component layer of the component and/or including a trajectory dataset with scan trajectory-segments for producing a component layer of the component, creating a number of normalized intended trajectories from the component dataset. A normalized intended trajectory is formed from norm-trajectory-segments whose spatial length is an integer multiple of a norm-length which is determined from a pre-defined scan control clock of the device, generating irradiation control data such that the device can create a component layer with a solidification of building material along the number of normalized intended trajectories, and outputting the irradiation control data for the additive manufacturing of a component.
Disclosed is a sensor arrangement, manufacturing apparatus, and measurement method for an additive manufacture apparatus The sensor arrangement includes a sensor module which is configured to detect oxygen molecules in a gas sample permeating into the sensor module and to generate an electrical sensor signal based on the quantity of the oxygen molecules, a control module which is configured, by means of a comparison of the sensor signal or a variable derived from the sensor signal with a specified threshold value, to determine whether the sensor module is measuring outside a predetermined action range and if this is the case, to generate a control signal which is configured to initiate a predetermined countermeasure which is intended to modify the conditions in the apparatus in a manner such that the sensor module is again measuring in the action range.
G01N 27/12 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluidInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid
B22F 10/322 - Process control of the atmosphere, e.g. composition or pressure in a building chamber of the gas flow, e.g. rate or direction
B22F 12/90 - Means for process control, e.g. cameras or sensors
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
25.
DYNAMIC ALLOCATION OF OBJECTS TO BE MANUFACTURED TO ADDITIVE MANUFACTURING DEVICES
A computer-aided method of controlling a plurality of additive manufacturing apparatuses. The method includes receiving first computer-based data models each of which geometrically describes a first object to be manufactured, receiving status data and/or property parameters of the plurality of additive manufacturing apparatuses, to each of which at least one second computer-based data model of a second object to be manufactured has been assigned, transmitting a first computer-based data model to a target manufacturing apparatus among the plurality of additive manufacturing apparatuses for a manufacture of the first object, where the target manufacturing apparatus is selected on the basis of a rule-based automatic decision in which the received status data and/or property parameters are taken into account.
Disclosed is a method for controlling a manufacturing process for additive manufacturing. In the method, a process gas loaded with contamination is discharged from a process space through a gas pipe, filtered and returned to the process space. The method further includes detecting a number of measuring values by a contamination measuring unit, each measuring value allowing an inference of a degree of contamination of the process gas flowing through the gas pipe prevailing at the time of detection, evaluating the number of measuring values, and controlling the device and/or an output device data-technically connected to the manufacturing process in dependence on the evaluation of the number of measuring values. Further disclosed is a corresponding system and a manufacturing device.
Disclosed is a method for generating control data for an additive manufacturing device. The method includes obtaining or generating layer information selecting or generating a first filling region having a filling pattern of scan vectors parallel to one another with a predefined vector spacing, creating a second filling region having a filling pattern of scan vectors parallel to one another, wherein the scan vectors of the second filling region are substantially parallel to the scan vectors of the first filling region and arranged offset relative thereto, and generating control data in such a way that the device for additive manufacturing can generate component layers corresponding to the solidification regions using this control data.
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The invention relates to a method for setting the radiation intensity of a beam in a manufacturing process for additively manufacturing a component. During the manufacturing process, components are produced in that a construction material is deposited layer by layer, and the construction material is solidified in each deposited layer by supplying radiation energy, by means of a beam, to the points of the layer which are associated with the cross-section of the component in said layer in that the beam is moved along a plurality of trajectories in the cross-section of the component by means of a beam moving device, preferably a controllable beam moving device, in order to melt the construction material at the points which are associated with the cross-section of the component, wherein the radiation intensity of the beam is set within a region of incidence of the beam on the construction material using a beam profile setting device. The method is characterized in that the radiation intensity of the beam is set in such a way that the distribution of the radiation intensity in the region of incidence of the beam on the construction material changes by at least 1% per µm at at least one point.
Disclosed is a flow modification element including a gas guide element extending from a gas inlet side to a gas outlet side and a plurality of channels. The channels are spaced apart such that the number of second channels is arranged closer to the build area in a direction perpendicular to the build area than the number of first channels. A total opening cross-sectional area of the number of first channels on the gas outlet side differs from a total opening cross-sectional area of the number of second channels on the gas outlet side, and the total opening cross-sectional areas of the number of first channels and of the number of second channels on the gas inlet sides are substantially equal. Or, at least a partial gas flow introduced into the process chamber from the number of first channels is directed towards a plane of the build area.
B28B 1/00 - Producing shaped articles from the material
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
Disclosed is a method for regulating an irradiation in a manufacturing process for the additive manufacturing of objects. The method involves identifying shape-regions in object layers to be solidified and categorizing them into reference-regions and correction-regions. Target-temperature maps are created to specify desired heat distribution for the correction-regions. Reference-regions are solidified while recording spatial temperature data, which is used to generate correction factor modules. These modules contain spatially resolved correction factors for irradiation values and are assigned to the corresponding correction-regions. The correction-regions are solidified using their respective correction factor modules, ensuring precise heat distribution and improved solidification accuracy.
Disclosed are powder mixtures for use in additive manufacture, which comprise three particle fractions A, B and C with different median particle sizes, wherein the median particle sizes relate to each other as 0.2 to 0.5/1/1.2 to 2. These powder mixtures have higher apparent density and/or conditioned bulk density compared to conventional additive manufacture powders and thus allow for faster processing with less defects. Further disclosed is technology that relates to methods for the preparation of respective powder mixtures, methods and devices for the preparation of three-dimensional objects from such powder mixtures and three-dimensional objects, which have been prepared accordingly, as well as the use of the powder mixtures for reducing the amount of defects in additive manufacturing processes.
B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
Disclosed is a calibration method for a layer-wise additive manufacturing apparatus. The method includes a control device, a layer application device, and an energy supply device. The energy supply device can be moved over the building field and a predefined target direction is specified for the energy supply device for this movement. The energy supply device includes a number of radiation emitters which are arranged along an arrangement direction transverse to the predefined target direction The control device specifies for the radiation emitters emission locations over the building field at which radiation is to be emitted. Depending on the positions, it is determined whether a deviation of a movement direction from the predefined target direction occurs in the movement of the energy supply device, and the control device is caused to specify other emission locations for radiation emitters depending on a determined deviation.
The invention concerns a sensor arrangement (9) for an apparatus (1) for the additive manufacture of a component (2) in a manufacturing process in which build material (13), preferably comprising a metal powder, is consolidated on a construction area (8) in a processing area (3) by means of irradiation of the build material (13) with at least one energy beam (AL), the sensor arrangement (9) comprising:
a sensor module (90) which is configured to detect oxygen molecules in a gas sample (P) permeating into the sensor module (90) and to generate an electrical sensor signal (S) based on the quantity of the oxygen molecules,
a selective filter element (F) configured to filter the gas sample (P) so that at least hydrogen molecules and/or hydrogen ions and/or water molecules and/or hydroxide ions are filtered out of the gas sample (P).
The invention concerns a sensor arrangement (9) for an apparatus (1) for the additive manufacture of a component (2) in a manufacturing process in which build material (13), preferably comprising a metal powder, is consolidated on a construction area (8) in a processing area (3) by means of irradiation of the build material (13) with at least one energy beam (AL), the sensor arrangement (9) comprising:
a sensor module (90) which is configured to detect oxygen molecules in a gas sample (P) permeating into the sensor module (90) and to generate an electrical sensor signal (S) based on the quantity of the oxygen molecules,
a selective filter element (F) configured to filter the gas sample (P) so that at least hydrogen molecules and/or hydrogen ions and/or water molecules and/or hydroxide ions are filtered out of the gas sample (P).
The invention further concerns a manufacturing apparatus as well as a measurement method with such a sensor arrangement.
Disclosed is a method for modifying surface-based image data of a three-dimensional geometric model suitable for the additive manufacturing of a component. The method includes creating a number of voxel grids, and for each, determining position information and assigning the position information to the respective voxel, assigning an individual index to at least some of the surface segments of the image data, and assigning the index of the nearest surface segment to the respective voxel. Additionally, or alternatively to the above, the method can include determining a distance of the respective voxel to the surface of the model and assigning corresponding distance information to the respective voxel and outputting the voxels with the information assigned to them.
Disclosed is a method for generating a control data set for an energy input device of an additive manufacturing device. The method includes accessing computer-based model data of an object cross-section of the object to be manufactured, and generating a data model of a region of a building material layer to be solidified, where the region to be solidified is divided into a plurality of subregions. At least a first subregion and a second subregion adjoin each other at a boundary, and locations in the first subregion are scanned at a time coordinated with locations in the second subregion Further, the control data set for the energy input device is generated taking into account the data model generated previously.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/268 - Arrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB]
B29K 105/00 - Condition, form or state of moulded material
Disclosed is a steel powder for additive manufacture of three-dimensional objects and in particular for the manufacture hot and cold work tools, wherein the steel combines the properties of carbon hardening and maraging steel. Such steels have been found to be readily processable and provide crack free objects with low distortion. Further disclosed is technology that relates to methods for the preparation of corresponding steel powders, methods for the manufacture of three-dimensional objects from corresponding steel powders and three-dimensional objects prepared by such methods, and the use of a corresponding steel powder for the preparation of die casting or injection moulding tools and for suppressing the formation of cracks in the preparation of three-dimensional objects from steel.
Disclosed is a method and a device for determining property values of a segment of a manufacturing product made by an additive manufacturing process. In the process, a parameter set is determined which includes a defined group of process parameter values for the construction process of a layer of the segment. At least one process parameter value comprises a layer scanning direction arrangement. Furthermore, a segment scanning direction distribution is determined for the construction process of the segment. A macro property value of the segment is determined based on the parameter set and the segment scanning direction distribution. The invention additionally relates to a method for testing a manufacturing product, to a control data generation device, to a control device for a production device, and to a production device. The invention also relates to a method for setting up a basic property database and to a property database system.
This invention relates to a method for generating control data for a device (1) for additively manufacturing a component (2), said method comprising the steps of: - obtaining or generating layer information (SI) comprising a number of layer structures (S) of the component (2), - subdividing at least one layer structure (S) into a plurality of partial structures (T), which together form a number of ring shapes (R) which enclose a dot, wherein adjacent partial structures (T) touch one another such that they form a closed area, - individually assigning a hatch vector (HV) to each partial structure, wherein the hatch vectors (HV) are selected such that they lie on the plane of the layer structure (S) and the orientations of hatch vectors (HV) of partial structures (T) which are adjacent to one another relative to a common coordinates system differ, - generating control data (PS) such that the device (1) for additive manufacturing can use said control data (PS) to generate a fill pattern (F) with hatchings of hatch lines along the respective hatch vectors (HV), said hatch lines being substantially perpendicular to one another. The invention also relates to corresponding control data and to a corresponding control data generation device, to a control unit for an additive manufacturing device, to a corresponding additive manufacturing device and to a manufacturing method.
The present application is concerned with a powder mixture for additive manufacturing processes, wherein the powder mixture comprises a duplex steel powder component and an austenitic steel powder component, wherein the powder mixture comprises Cr in an amount of at least 21.3% by weight. The addition of the austenitic steel powder component increases the ductility of the duplex steel and reduces internal stresses which result in cracking in objects build with duplex steel. The present application is further concerned with methods for the preparation of such powder mixtures, methods and devices for the preparation of three-dimensional objects from the powder mixtures and three-dimensional objects, which have been prepared accordingly, as well as the use of an austenitic steel powder to suppress the formation of cracks in duplex steel three-dimensional objects.
The invention relates to a method for generating control data for additively manufacturing a component (2), having the steps of: - providing a component data set (D) comprising data on the three-dimensional shape of a component (2) and data on a three-dimensional structural region (S) of the component (2) which is to be provided with a structure (T) in a normal operation, - providing a structural data set comprising at least one piece of data for constructing a unit cell (E) of a periodic structure (T), - specifying a grid (G) consisting of three-dimensional grid cells (g) in the structural region (S), wherein the unit cell (E) can be spatially arranged in the grid cells (g), - fitting the unit cell (E) in each grid cell (g) such that the shape of the unit cell (E) corresponds to the shape of the respective grid cell (g) and filling the grid cells (g) with a respective fitted unit cell (E) in order to form a structure (T), - generating control data (PS) for constructing a component (2) in layers, said component having a structural region (S) structured by means of said structure (T), and - outputting the control data (PS) to a device (1) for additively manufacturing a component (2). The invention additionally relates to corresponding control data, to a corresponding control data generating device, to a controller for a device for an additive manufacturing process, to a corresponding device for an additive manufacturing process, and to a manufacturing method.
Disclosed is a method for the post-treatment of particles carried along in a process gas of a device for the generative manufacturing of three-dimensional objects, wherein the particles are conducted to a filter chamber. An oxidant is added to the particles and that an oxidation reaction of the particles with the oxidant is initiated.
The present invention concerns a composition comprising at least one polymer, wherein the polymer solidifies from a molten material in a substantially amorphous or completely amorphous form. The present invention further concerns a process for the production of the composition in accordance with the invention, as well as a structural component comprising a composition in accordance with the invention and the use of the composition in accordance with the invention.
C09D 179/08 - PolyimidesPolyester-imidesPolyamide-imidesPolyamide acids or similar polyimide precursors
B29B 9/12 - Making granules characterised by structure or composition
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 70/00 - Materials specially adapted for additive manufacturing
C08J 3/09 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids
C08J 3/11 - Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in organic liquids from solid polymers
C08J 3/14 - Powdering or granulating by precipitation from solutions
Disclosed is a method of oxidizing welding fume residues of an additive manufacturing apparatus adapted to process a metal-based building material. The additive manufacturing apparatus includes a process chamber for manufacturing a three-dimensional object and a circulation system having a gas circuit for a protective gas which is passed through the process chamber. The welding fume residues are exposed for a passivation time period to a gas atmosphere containing an oxidizing agent in a chamber, where the passivation time period is ended depending on a difference between oxidizing agent concentrations in the chamber detected by at least one sensor at two points in time having a predetermined distance from one another.
Disclosed is a filter device for an additive manufacturing device for purifying a process gas of the additive manufacturing device, where the filter device for purifying a process gas during operation has at least one permanent filter, where the permanent filter has at least one coating as well as a method for manufacturing such a filter device. Further disclosed is an additive manufacturing device as well as a method for additive manufacturing.
B01D 39/10 - Filter screens essentially made of metal
B01D 46/54 - Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
01 - Chemical and biological materials for industrial, scientific and agricultural use
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Unprocessed plastics, in particular in liquid, granular
and/or powder form; chemical substances for producing foam;
chemicals in the form of foam boosters; pastes containing
metalliferous glass [chemical products] for use in industry;
parts and fittings for all the aforesaid goods, included in
this class. Common metals and their alloys; metal ores; metal hardware;
metalliferous parts being semi-finished products; metal
containers for storage and transport; metals in powder form;
powder of or with metal for sintering; alloys of metal;
parts and fittings for all the aforesaid goods, included in
this class. Manufacturing machines; machine tools and power-operated
tools; machines for use in generative manufacture [additive
manufacturing]; parts and fittings for all the aforesaid
goods, included in this class. Education; training; entertainment services; sporting and
cultural activities; training and further training
consultancy; coaching; conducting and organizing of training
seminars, workshops, trainings, training courses; arranging
and organization of demonstrations for educational purposes;
training, in particular training in connection with additive
manufacturing [generative manufacturing processes];
arranging of lectures; provision and conducting
correspondence courses; provision of electronic
publications, also via the internet or a global network as
well as in electronic or computerized form; rental and
leasing of objects in connection with providing the
aforesaid services, included in this class; consultancy and
information in relation to the aforesaid services, included
in this class. Scientific and technological services and research; design
services; industrial analysis and research services; civil
engineering; design and development of computer hardware;
technological consultancy; mechanical engineering services
and/or engineering services and/or chemistry services and/or
mechanics services; design, development, programming and
implementation of software; consultancy on the use of
software; software as a service [SaaS] and rental of
software; data mining; services of a computer scientist
and/or mathematician; quality control; support and
maintenance of software; rental and leasing of objects in
connection with providing the aforesaid services, included
in this class; consultancy and information in relation to
the aforesaid services, included in this class.
46.
GENERATING OPTIMIZED PROCESS VARIABLE VALUES AND CONTROL DATA FOR AN ADDITIVE MANUFACTURING PROCESS
Disclosed is a method and device for generating optimized process variable values for an additive manufacturing process of a manufactured product. Requirement data of the manufactured product is provided and includes at least geometric data of the manufactured product. A region is then defined which encompasses the manufactured product. The manufactured product includes at least one segment. An optimization process is then carried out for the at least one segment in the defined region to select at least one optimal parameter set, which includes a defined group of process parameter values, from candidate parameter sets, to ascertain an optimized segment scanning direction distribution using a defined target function and the requirement data. The optimal parameter set and the optimized segment scanning direction distribution are provided in the form of optimized process variable values.
Disclosed is a method for treating objects produced by an additive manufacturing process which have at least one surface formed from a polymer with a glass transition temperature of at least 120° C., and preferably are formed from such a polymer, and in which the surface of the object is brought into contact with an organic or inorganic solvent. By such a treatment, the surface of the objects can be smoothed and relevant mechanical properties can be improved. Further disclosed are three-dimensional objects produced according to such a method and to the use of organic or inorganic solvents to reduce the surface roughness and/or to improve the mechanical properties and/or the chemical resistance.
Disclosed is a passivation device for passivating a filter residue occurring in a filter device. The passivation device includes an outlet region for receiving filter residue from the filter device, a fluid supply for supplying a fluid flow of a fluid, which can include a passivating agent, into the outlet region, a fluid discharge for discharging the fluid flow and the filter residue from the outlet region and an energy supply device for applying energy to the fluid flow and/or the filter residue. The passivation device is configured and/or controllable to effect a chemical reaction between the filter residue and the passivating agent at least partially in the entrained flow. Furthermore, the passivation device optionally includes a passivating agent supply for adding a passivating agent to the fluid flow.
01 - Chemical and biological materials for industrial, scientific and agricultural use
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Unprocessed plastics, in particular in liquid, granular
and/or powder form; chemical substances for producing foam;
chemicals in the form of foam boosters; pastes containing
metalliferous glass [chemical products] for use in industry;
parts and fittings for all the aforesaid goods, included in
this class. Common metals and their alloys; metal ores; metal hardware;
metalliferous parts being semi-finished products; metal
containers for storage and transport; metals in powder form;
powder of or with metal for sintering; alloys of metal;
parts and fittings for all the aforesaid goods, included in
this class. Manufacturing machines; machine tools and power-operated
tools; machines for use in generative manufacture [additive
manufacturing]; parts and fittings for all the aforesaid
goods, included in this class. Education; training; entertainment services; sporting and
cultural activities; training and further training
consultancy; coaching; conducting and organizing of training
seminars, workshops, trainings, training courses; arranging
and organization of demonstrations for educational purposes;
training, in particular training in connection with additive
manufacturing [generative manufacturing processes];
arranging of lectures; provision and conducting
correspondence courses; provision of electronic
publications, also via the internet or a global network as
well as in electronic or computerized form; rental and
leasing of objects in connection with providing the
aforesaid services, included in this class; consultancy and
information in relation to the aforesaid services, included
in this class. Scientific and technological services and research; design
services; industrial analysis and research services; civil
engineering; design and development of computer hardware;
technological consultancy; mechanical engineering services
and/or engineering services and/or chemistry services and/or
mechanics services; design, development, programming and
implementation of software; consultancy on the use of
software; software as a service [SaaS] and rental of
software; data mining; services of a computer scientist
and/or mathematician; quality control; support and
maintenance of software; rental and leasing of objects in
connection with providing the aforesaid services, included
in this class; consultancy and information in relation to
the aforesaid services, included in this class.
A method for providing control data for an additive manufacturing device (1) involves: a first step (S1) of accessing model data of a number of partial cross sections of the object to be manufactured, each of which comprises a subarea of an object cross section and a portion of the periphery of this object cross section, a second step (S2) of creating a data model of the number of partial cross sections, wherein the data model specifies a scanning of the locations of the number of partial cross sections with a number of beams (22) along a plurality of trajectories (54) in the layer plane (7), wherein at least one of the partial cross sections has a set sequence for scanning the trajectories such that first a starting trajectory is scanned, wherein at least one point of the starting trajectory is at such a distance from the periphery of the object cross section that at least one further trajectory lies between the at least one point and the periphery, and a third step (S3), in which control data for generating a set of control data are provided.
The invention relates to a conveyor device (40) for an apparatus (1) for the additive manufacture of at least one component (2) from a powder construction material (13, 13', 15) by means of selective at least partial solidification of the construction material (13). For conveying construction material (13') in the apparatus (1), the conveyor device (40) has a chain-driven conveyor (50), preferably a chain conveyor (50), with at least one toothed wheel (51). At least one inter-tooth region (52) between two adjacent teeth (57, 57') of the toothed wheel (51) comprises an escape space (54, 54') for the powder construction material (13'). The invention also relates to an apparatus (1) for the additive manufacture of at least one component (2), and to a method for the additive manufacture of at least one component (2).
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 12/50 - Means for feeding of material, e.g. heads
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B65G 17/00 - Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriersEndless-chain conveyors in which the chains form the load-carrying surface
B65G 17/30 - Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriersEndless-chain conveyors in which the chains form the load-carrying surface DetailsAuxiliary devices
B65G 19/10 - Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel and attached to a pair of belts, ropes, or chains
Disclosed is an additive manufacturing apparatus. The apparatus includes a residual powder chamber with a receiving opening to receive excess powdered material. A region between the construction area and the receiving opening has at least one flow restricting device. A region between a construction area of the apparatus and the residual powder chamber and/or at least a part of the residual powder chamber is preferably covered by at least one cover element leaving the receiving opening free. The surface of the cover element least one flow restricting device for the powdered construction material.
B29C 64/307 - Handling of material to be used in additive manufacturing
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
A method of passivating a filter residue that arises in a filter apparatus (40) includes the following steps: – feeding a filter residue that has been cleaned off a filter element (42) in the filter apparatus (40) to a collecting region (71, 71a, 71b), – compacting the filter residue in the collecting region (71, 71a, 71b), – feeding the compacted filter residue to an oxidation region (290) in an oxidation unit (200, 210, 230) and oxidizing the compacted filter residue in the oxidation unit (200, 210, 230).
B01D 46/48 - Removing dust other than cleaning filters
B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
B22F 1/145 - Chemical treatment, e.g. passivation or decarburisation
What are described are a mixture comprising at least one polymer-based material in powder form and at least one halogen-free flame retardant in powder form, wherein the flame retardant in powder form has a particle size distribution with a d50 in the range from 20 to 80 µm, preferably of at least 30 µm and/or at most 60 µm, and a d10 of greater than 10 µm, preferably greater than 15 µm, even more preferably greater than 20 µm, a method for producing such a mixture, a mixture obtainable by said method, the use of such a mixture as build material for the additive manufacturing of a three-dimensional object, a three-dimensional object produced by solidifying said mixture, and a method and a system for production of such a three-dimensional object.
B22F 12/00 - Apparatus or devices specially adapted for additive manufacturingAuxiliary means for additive manufacturingCombinations of additive manufacturing apparatus or devices with other processing apparatus or devices
B29C 64/00 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
The invention relates to a production method for additively manufacturing at least one component of an electrochemical device, preferably an electrochemical energy store, in particular a storage battery, preferably a lithium ion storage battery, and/or an electrolytic cell, at least partially by applying a build material, preferably a powdered build material, layer by layer and subsequently solidifying, in particular selectively solidifying, said build material, the production method comprising the steps of: - providing a support device in the form of a support belt, in particular comprising or formed by a support foil, preferably a metal support foil, - applying at least one layer of the build material to the support belt, - feeding the build material into an irradiation region (19) of at least one first, preferably stationary, irradiation unit (10) and at least partially solidifying, in particularly selectively solidifying, the build material on the support belt by means of the at least one first irradiation unit.
The invention relates to a method and a device (60) for generating optimized process variable values (PGO) for an additive construction process of a manufacturing product (2, 2', 2''). For this purpose, request data (AD) of the manufacturing product (2, 2', 2'') is provided, and an optimization method is then carried out in order to ascertain the optimized process variable values (PGO) while taking into consideration the request data (AD), wherein at least one optimized scan direction distribution (SSV) for at least one region of the manufacturing product (2, 2', 2'') is ascertained as an optimized process variable value (PGO) using an AI-based optimization unit (NN, NPS, NSV, NNW, KNSP, KNWS). The optimized process variable values (PGO) are then provided. The invention additionally relates to a method and a control data generating device (54, 54') for generating control data (BSD, PSD), to a method for generating an AI-based optimization unit (KNSP, KNWS), to a control method, to a controller (50) for a production device (1) for an additive manufacturing process, and to a corresponding production device (1).
The present application is concerned with aluminium alloys in powder form, which comprise up to 8 wt.-% Ni and up to 4 wt.-% Fe. Corresponding alloys provide for a beneficial combination of high conductivity, moderate strength, good wear resistance and good stability at temperatures of up to 250°C. The powder has a particle size d50 of from 2 to 90 μm, which makes the powder particularly suitable for powder bed based additive manufacturing processes. The present application is further concerned with processes for the production of such aluminium alloy powders, methods for the production of three-dimensional objects using corresponding aluminium alloy powders and three-dimensional objects prepared accordingly, and combinations of devices for the production of such three-dimensional objects and corresponding aluminium alloy powders.
B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 10/25 - Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
B22F 3/24 - After-treatment of workpieces or articles
B22F 9/04 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
C22F 1/04 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
The invention describes a laser printing system (100) for illuminating an object moving relative to a laser module of the laser printing system (100) in a working plane (180), the laser module comprising at least two laser arrays of semiconductor lasers and at least one optical element, wherein the optical element is adapted to image laser light emitted by the laser arrays, such that laser light of semiconductor lasers of one laser array is imaged to one pixel in the working plane of the laser printing system, and wherein the laser printing system is a 3D printing system for additive manufacturing and wherein two, three, four or a multitude of laser modules (201, 202) are provided, which are arranged in columns (c1, c2) perpendicular to a direction of movement (250) of the object in the working plane (180), and wherein the columns are staggered with respect to each other such that a first laser module (201) of a first column of laser modules (c1) is adapted to illuminate a first area (y1) of the object and a second laser module (202) of a second column (c2) of laser modules is adapted to illuminate a second area (y2) of the object, wherein the first area (y1) is adjacent to the second area (y2) such that continuous illumination of the object is enabled.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B22F 12/00 - Apparatus or devices specially adapted for additive manufacturingAuxiliary means for additive manufacturingCombinations of additive manufacturing apparatus or devices with other processing apparatus or devices
B29C 64/268 - Arrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB]
B29C 64/277 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
B29C 64/282 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED] of the same type, e.g. using different energy levels
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B41J 2/45 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using light-emitting diode arrays
B41J 2/455 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using laser arrays
01 - Chemical and biological materials for industrial, scientific and agricultural use
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Unprocessed plastics, in particular in liquid, granular or powder form; chemical substances for producing foam; chemicals in the form of foam boosters; thermal pastes containing metalliferous glass for use in industry Common metals and their alloys; metal ores; metal containers for storage and transport of goods; common metals in powder form; powder of common metal powder and common metal for further use in sintering in manufacturing; alloys of common metal Manufacturing machines for use in the manufacture of additive manufactured objects; machines for use in generative manufacture of additive manufactured objects; structural parts for all the aforesaid goods Educational services, namely, workshops, seminars in the field of additive manufacturing; training services in the field of additive manufacturing; training and training consultancy in the field of additive manufacturing; arranging and organization of educational demonstrations in the field of additive manufacturing for educational purposes; training, in particular training in connection with additive manufacturing; providing and conducting education in the field of additive manufacturing rendered through correspondence courses; provision of electronic publications, via the internet or a global network as well as in non-downloadable electronic or computerized form in the field of additive manufacturing; educational and entertainment consultancy and information in relation to the aforesaid services Scientific and technological services, namely, research and design services in the field of additive manufacturing; industrial scientific analysis and research services in the field of industrial engineering; civil engineering; design and development of computer hardware; technological consultancy in the field of additive manufacturing; mechanical engineering services; engineering services; chemistry services; mechanics services;chemical engineering services; design, development, programming and implementation of computer software; computer software consultancy regarding the use of software; quality control for others; technical support services, namely, troubleshooting of computer software problems and maintenance of software; scientific research and technological consultancy and information in relation to the field of additive manufacturing
01 - Chemical and biological materials for industrial, scientific and agricultural use
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Unprocessed plastics, in particular in liquid, granular or powder form; chemical substances for producing foam; chemicals in the form of foam boosters; thermal pastes containing metalliferous glass for use in industry. Common metals and their alloys; metal ores; metal containers for storage and transport of goods; common metals in powder form; common metal powder and common metal for further use in sintering in manufacturing; alloys of common metal Machines for additive manufacturing in the nature of 3D printers Educational services, namely, workshops, seminars in the field of additive manufacturing; training services in the field of additive manufacturing; training and training consultancy in the field of additive manufacturing; arranging and organization of educational demonstrations in the field of additive manufacturing for educational purposes; training, namely, training in connection with additive manufacturing; providing and conducting education in the field of additive manufacturing rendered through correspondence courses; provision of online non-downloadable electronic publications, namely journals and white papers in the field of additive manufacturing; educational consultancy and information on education in relation to the aforesaid services scientific and technological services, namely, research and design services in the field of additive manufacturing, industrial and scientific analysis and research services in the field of the industrial engineering; civil engineering; design and development of computer hardware; technology consultancy relating to additive manufacturing; mechanical engineering services; engineering services; research in the field of chemistry; chemical engineering services; design, development, programming and implementation of computer software; computer software consultancy regarding the use of software; quality control for others; technical support services, namely, troubleshooting of computer software problems of maintaining software; scientific research and technology consultancy relating to additive manufacturing
Disclosed is a method for the removal of a part of a particle collecting device. The part is loaded with at least highly flammable particles and is removed from a process gas cleaning device of an additive manufacturing device by providing an inert gas which substantially encloses the particles, then removing the part of the particle collecting device from the process gas cleaning device, wherein the particles remain enclosed in the inert gas.
Disclosed is a specific Ni-base superalloy, preferably in powder form, comprising at least 7.00 to 24.00 wt.-% Cr, 5.00 to 20.00 wt.-% Co, 0.00 to 5.00 wt.-% Fe, 0.00 to 10.00 wt.-% W, 0.00 to 3.00 wt.-% Nb, 0.00 to 10.00 wt.-% Mo, 0.00 to 6.00 wt.-% Ti, 0.50 to 6.00 wt.-% Al, 0.00 to 9.00 wt.-% Ta, 0.00 to 0.20 wt.-% C, 0.00 to 0.20 wt.-% Zr, 0.00 to 2.00 wt.-% Hf, 0.00 to 0.50 Si wt.-% and 0.00 to 0.20 wt.-% B, wherein the balance is Ni and unavoidable impurities. Further disclosed are processes for the manufacture of such Ni-base superalloy powders, processes and devices for the manufacture of three-dimensional objects, three-dimensional objects prepared by such processes and devices and the use of such a Ni-base superalloy in powder form for minimizing and/or suppressing microcrack formation in a three-dimensional object and/or for providing improved ductility and rupture life in creep conditions.
B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B33Y 70/00 - Materials specially adapted for additive manufacturing
C22C 1/04 - Making non-ferrous alloys by powder metallurgy
C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
The invention relates to a pulverulent composition comprising a powder based on at least one polyaryl ether ketone, said composition having at least a first endothermic peak and a second endothermic peak, the first endothermic peak having a peak temperature strictly greater than 280° C., and the second endothermic peak having a peak temperature equal to a value of 200° C. to 280° C.; the endothermic peaks are measured on a thermogram obtained by differential scanning calorimetry, according to the standard ISO 11357-3: 2018, on first heating, using a temperature ramp of 20° C./minute. The invention also relates to a method for the electromagnetic radiation-mediated layer-by-layer sintering construction of a three-dimensional object from the pulverulent composition, to a method for determining the minimum construction temperature to be used, and also to objects that may be manufactured via this construction process.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 70/00 - Materials specially adapted for additive manufacturing
An additive manufacturing method comprises: - applying a layer of building material on a support or a layer of building material that has been previously selectively solidified, - selectively solidifying the layer of building material by supplying laser radiation to positions in the layer that are assigned to a cross-section of the object in this layer in that these positions are scanned with a laser beam along a number of trajectories in order to melt the building material along these trajectories, and - repeating the two steps of applying a layer and solidifying said layer until the cross- sections of the object that are to be manufactured by additive manufacturing have all been selectively solidified. The method is characterized in that pulsed laser radiation is used for melting the building material, wherein the laser beam is moved across the layer of building material with a speed exceeding 1000 mm/s.
B22F 10/36 - Process control of energy beam parameters
B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
B22F 12/43 - Radiation means characterised by the type, e.g. laser or electron beam pulsedRadiation means characterised by the type, e.g. laser or electron beam frequency modulated
The invention relates to a method for generating control data (PS) for a device (1) for additively manufacturing a component (2) in a manufacturing process, in which method build-up material (13), preferably comprising a metal powder, is built up in layers in a build-up field (8) by selectively solidifying the build-up material (13) by irradiating the build-up material (13) with at least one energy beam (22), the method comprising the steps of: - recording a process chamber sensor data set (SD) with spatially resolved thermal data of a component layer (B) currently being solidified; - providing a process chamber control data set (KD) with a target shape (F) of the component layer (B) currently being solidified; - determining a number of special regions (S) in the target shape (F); - assigning the number of special regions (S) to corresponding regions in the process chamber sensor data set (SD); - generating a correction factor module (KK), wherein correction factors (KF) are generated in the special regions (S) according to different rules than in other regions of the target shape (F) outside the special regions (S); - correcting control data (PS) for the additive manufacture of a subsequent component layer (B1) based on the correction factor module (KK); - outputting the corrected control data (PS) to a device (1) for additively manufacturing a component (2). The invention also relates to corresponding control data, a method for additive manufacturing, a control data generation device, a control device, and a manufacturing device.
B22F 10/368 - Temperature or temperature gradient, e.g. temperature of the melt pool
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 12/90 - Means for process control, e.g. cameras or sensors
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The invention relates to a method for controlling a manufacturing process for additively manufacturing a component (2) in an apparatus (1), wherein build-up material (13) is solidified on a build-up field (8) in a process chamber (3) by irradiating the build-up material (13) with at least one energy beam (22), and wherein a process gas (G) loaded with impurities (A) is discharged from the process chamber (3) through a gas line (9), filtered, and returned to the process chamber (3), the method comprising the steps: - using a contamination measuring unit (18) to record a number of measured values (M), each measured value (M) permitting a conclusion to be drawn about a degree of contamination, at the time of recording, in the process gas (G) flowing through the gas line (9), - evaluating the number of measured values (M), - depending on the evaluation of the number of measured values (M), controlling the apparatus (1) and/or an output device (39) which is connected to the manufacturing process via a data link. The invention also relates to a corresponding system and to a manufacturing apparatus.
01 - Chemical and biological materials for industrial, scientific and agricultural use
06 - Common metals and ores; objects made of metal
Goods & Services
Chemicals for use in industry; Chemicals for use in science; Unprocessed artificial resins; Unprocessed plastics, in particular in form of liquids, granules, powder and/or paste Common metals in powder form; common metals and their alloys, namely, sinter powders; Alloys of common metal
68.
CALIBRATION SYSTEM FOR AN ENERGY BEAM OF AN ADDITIVE MANUFACTURING DEVICE
The invention relates to a calibration system (100, 100', 100'') for an energy beam (22) of an additive manufacturing device (1). The calibration system comprises an additive manufacturing device (1) with a beam inlet (25) for the energy beam (22), a gas supply (31) for providing a gas that is suitable for calibration, and a measuring unit (35) for detecting a beam property of the energy beam (22). In addition, the calibration system (100, 100', 100'') comprises a calibration aid (40, 60, 80) with a hollow space (54, 74, 94) and an inflow opening (41, 61, 81) for introducing the gas into the hollow space (54, 74, 94). The calibration aid (40, 60, 80) is arranged in the additive manufacturing device (1) and the energy beam (22) is surrounded by the hollow space (54, 74, 94) from the beam inlet (25) to the measuring unit (35). For calibration purposes, the gas flows into the hollow space (54, 74, 94). The invention further relates to a method for calibrating an energy beam (22) and to the use of a calibration aid (40, 60, 80) for calibrating an energy beam (22).
The invention relates to a method for generating irradiation control data (BS) for a device (1) for additive manufacturing of a component (2) in a manufacturing process, in which the component (2) is constructed in layers in a construction field (8) by selectively solidifying the construction material (13) by irradiation of the construction material (13) using at least one energy beam (22), the method comprising the steps of: - providing a component data set (TD) comprising geometry data of at least one component layer of the component (2) and/or comprising a trajectory data set (TD) with scan track segments (B) for producing a component layer of the component (2), - creating a number of standardised target tracks (T2) from the component data set (TD), a standardised target track (T2) being formed from standard track segments (nB), the spatial length of which is an integer multiple of a standard length (N), which is determined from a predefined scan control cycle of the device (1), - generating irradiation control data (BS) in such a way that the device (1) for additive manufacturing can create a component layer with a solidification of construction material (13) on the basis of this irradiation control data (BS) along the number of standardised target tracks (T2), - outputting the irradiation control data (BS) to a memory unit and/or to a device (1) for additive manufacturing of a component (2). The invention furthermore relates to corresponding control data, a method for additive manufacturing, a control data generation device, a control unit and a manufacturing device.
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B22F 12/43 - Radiation means characterised by the type, e.g. laser or electron beam pulsedRadiation means characterised by the type, e.g. laser or electron beam frequency modulated
B29C 64/273 - Arrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB] pulsedArrangements for irradiation using laser beamsArrangements for irradiation using electron beams [EB] frequency modulated
70.
FILTER SYSTEM HAVING INDIVIDUALLY SEPARABLE FILTER CHAMBERS
A device for providing a process gas atmosphere during a manufacturing method for a three-dimensional object (2) in a process chamber (3) of an additive manufacturing device comprises a gas circulation system with a gas circuit for a process gas conducted through a process chamber (3), the gas circuit being closed during operation, wherein a filter system (40) having a plurality of filter chambers (41a, 41b, 41c) is disposed in the closed gas circuit, at least three filter chambers are provided, each of which has at least one filter element (43a, 43b, 43c) for filtering particles in the gas circuit, and a gas control device (80) for controlling the gas circuit is provided, the gas control device being designed such that it can separate a number of filter chambers (41a, 41b, 41c) from the gas circuit during the manufacturing method in progress and at the same time can ensure that, at least for part of the time, preferably constantly, the number of filter chambers remaining in the gas circuit exceeds the number of filter chambers separated from the gas circuit.
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B01D 46/10 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
B01D 46/56 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
B01D 46/58 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber
The present in invention relates to powder mixtures for use in additive manufacture, which comprise three particle fractions A, B and C with different median particle sizes, wherein the median particle sizes relate to each other as 0.2 to 0.5 / 1 / 1.2 to 2. These powder mixtures have higher apparent density and/or conditioned bulk density compared to conventional additive manufacture powders and thus allow for faster processing with less defects. The present invention further relates to methods for the preparation of respective powder mixtures, methods and devices for the preparation of three-dimensional objects from such powder mixtures and three-dimensional objects, which have been prepared accordingly, as well as the use of the powder mixtures for reducing the amount of defects in additive manufacturing processes.
B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
B22F 10/34 - Process control of powder characteristics, e.g. density, oxidation or flowability
B33Y 70/00 - Materials specially adapted for additive manufacturing
72.
DYNAMIC ALLOCATION OF OBJECTS TO BE MANUFACTURED TO ADDITIVE MANUFACTURING DEVICES
The invention relates to a computer-assisted method for controlling a plurality of additive manufacturing devices, said method comprising the following steps: receiving a number of first computer-based data models, each of which geometrically describes a first object to be manufactured by means of an additive manufacturing device; receiving state data and/or property parameters of a plurality of additive manufacturing devices, each of which is allocated to at least one second computer-based data model of a second object to be manufactured in the additive manufacturing device; transmitting at least one first computer-based data model to a target manufacturing device, that is selected from the plurality of additive manufacturing devices, in order to manufacture the first object, that is described by the first computer-based data model, by means of the target manufacturing device, wherein the target manufacturing device to which the at least one first computer-based data model is transmitted is selected based on a rule-based automatic decision in which the received state data and/or property parameters are taken into consideration.
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
73.
METHOD AND DEVICE FOR GENERATING CONTROL DATA FOR A DEVICE FOR ADDITIVE MANUFACTURING OF A COMPONENT
The invention relates to a method for generating control data (PS) for a device (1) for additive manufacturing of a component (2) in a manufacturing process, in which method the component (2), in a construction field (8), is constructed in the form of component layers (B) by selective solidification of build-up material (13), preferably comprising a metal-based powder, by irradiating the build-up material (13) with at least one enegry beam (22), the method comprising the steps of: a) obtaining or generating layer information (SI) comprising geometric parameters of component layers and/or information relating to scan vectors of solidification regions (V1, V2, V3, V4) which represent component layers (B) of the component (2); b) selecting or generating a first filling region (F1) for a first solidification region (V1), this filling region (F1) having a filling pattern (FM) of scan vectors (S) parallel to one another with a predefined vector spacing; c) creating a second filling region (F2) having a filling pattern (FM) of scan vectors (S) parallel to one another for a second solidification region (V2) lying on the first solidification region (V1), the scan vectors (S) of the second filling region (F2) being oriented substantially parallel to the scan vectors (S) of the first filling region (F1) and being arranged offset relative thereto; d) generating control data (PS) in such a way that the additive manufacturing device (1) can generate component layers (B) corresponding to the solidification regions (V1, V2, V3, V4) using this control data (PS). The invention further relates to corresponding control data, a method for additive manufacturing, a control data generation device, a control device, and a manufacturing device.
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
B28B 1/00 - Producing shaped articles from the material
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The invention relates to a method for generating control data for a device for additively manufacturing a component in a manufacturing process, in which method the energy beam is moved along a number of solidification paths across the construction field, and operation takes place at least temporarily in a toothing mode in which, when the energy beam is being moved across the construction field, a location-dependent desired welding-in depth of the energy beam is switched over at a plurality of switchover points which are randomly distributed over at least one defined region of a cross-section of the component in the layer in question.
The invention relates to a flow device for an additive manufacturing device (1), comprising a gas-supply apparatus for generating a gas flow (33) at least in a process chamber (3) of the manufacturing device, a feed line (30) for supplying the gas flow to the process chamber, and a flow-modification element (31) for introducing the gas flow from the feed line (30) into the process chamber (3). The flow-modification element (31) comprises at least one first gas-conducting element (144a, 144b) extending from a gas-inlet side (141) to a gas-outlet side (142) and a plurality of ducts (143a, 143b, 143c), each of the ducts allowing for gas to be transported from the gas-inlet side (141) to the gas-outlet side (142). A number of first ducts and a number of second ducts are at least partly defined by the first gas-conducting element (144a, 144b), which ducts are mutually spaced in such a way that the number of second ducts, in a direction perpendicular to the build area (10), is arranged closer to the build area than the number of first ducts. A total opening cross-sectional area of the number of first ducts on the gas-outlet side differs from a total opening cross-sectional area of the number of second ducts on the gas-outlet side, and the total opening cross-sectional areas of the number of first ducts and the number of second ducts on the gas-inlet side have substantially the same size. Alternatively or additionally, at least one partial gas flow (61) which is introduced from the number of first ducts into the process chamber during operation of the flow device is directed towards one plane of the build area (10).
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
Disclosed is a filter system for an additive manufacturing device for purifying a process gas of the additive manufacturing device wherein, in order to purify a volume of process gas during operation, the filter system has at least one permanent filter. The permanent filter is configured so as to be thermally stable in a manner such that during operation, the permanent filter is stable at a temperature of more than 110° C. Further disclosed is an additive manufacturing device as well as an additive manufacturing process.
The present invention relates to a steel powder for additive manufacture of three-dimensional objects and in particular for the manufacture hot and cold work tools, wherein the steel combines the properties of carbon hardening and maraging steel. Such steels have been found to be readily processable and provide crack free objects with low distortion. The present invention further relates to methods for the preparation of corresponding steel powders, methods for the manufacture of three-dimensional objects from corresponding steel powders and three-dimensional objects prepared by such methods, and the use of a corresponding steel powder for the preparation of die casting or injection molding tools and for suppressing the formation of cracks in the preparation of three-dimensional objects from steel.
B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 12/00 - Apparatus or devices specially adapted for additive manufacturingAuxiliary means for additive manufacturingCombinations of additive manufacturing apparatus or devices with other processing apparatus or devices
The invention relates to a method for generating a control data set for an energy input device of an additive manufacturing device which is designed to produce an object by applying a construction material layer by layer and by solidifying the construction material in a construction area (8) by means of the energy input device. The method has the following steps: a first step (S1) of accessing computer-based model data of an object cross-section of the object to be produced; a second step (S2) of generating a data model of a construction material layer region to be solidified in order to produce the object cross-section, wherein the region to be solidified is separated into a plurality of sub-regions (8a, 8b), at least one first sub-region (8a) and a second sub-region (8b) adjoin each other at a border (8ab), and points in the first sub-region (8a) are scanned in a timed manner with respect to points in the second sub-region (8b); and a third step (S3), in which the control data set for the energy input device is generated while taking into consideration the data model generated in the second step.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
B29C 64/277 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The present application is concerned with a powder mixture for additive manufacturing processes, wherein the powder mixture comprises a duplex steel powder component and an austenitic steel powder component, wherein the powder mixture comprises Cr in an amount of at least 21.3 % by weight. The addition of the austenitic steel powder component increases the ductility of the duplex steel and reduces internal stresses which result in cracking in objects build with duplex steel. The present application is further concerned with methods for the preparation of such powder mixtures, methods and devices for the preparation of three-dimensional objects from the powder mixtures and three-dimensional objects, which have been prepared accordingly, as well as the use of an austenitic steel powder to suppress the formation of cracks in duplex steel three-dimensional objects.
A mixing device serves for producing a powder mixture of a first powder component and at least one second powder component for an additive manufacturing device. The mixing device includes a first container for receiving the first and/or the second powder component, where a discharge opening for discharging the first and/or the second powder component is provided at a lower boundary of the first container, and a second container for receiving the first and/or the second powder component. The second container is designed to be at least partially open towards an upper side. The first and second container each include at least one fluidization zone for introducing a gas into the first and second container. The mixing device further includes a powder conduit that connects to the discharge opening of the first container and is guided into the second container.
The invention relates to a particle separator (1) for an additive manufacturing device (5) for separating a coarse-particle fraction (6) from a process gas (50) of an additive manufacturing device (5) that flows through the particle separator (1) during operation. The particle separator (1) has at least one main flow-guiding body (10), an inlet element (12) for process gas (50) entering the main flow-guiding body (10) and an outlet element (13) for process gas (50) leaving the main flow-guiding body (10). The particle separator (1) also has an adhesion-reducing element (2). The adhesion-reducing element (2) has at least one temperature-controlling element (20), in order to control the temperature at least of a subregion (15, 15') of a housing wall (14) of the particle separator (1), which subregion (15, 15') is subjected to the flow of process gas (50) during operation. As an alternative, or in addition, the adhesion-reducing element (2) has at least one element (30) for guiding the flow, in order to introduce the process gas (50) of the additive manufacturing device (5) into the, preferably substantially cylindrical, main flow-guiding body (10) in the form of at least two partial streams (31, 33). The invention also relates to a particle-separating system (8) with a particle separator (1), to an additive manufacturing system (9) with at least one additive manufacturing device (5), to a process-gas cleaning process for cleaning process gas (50) and to a method for controlling an additive manufacturing operation.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The invention relates to a filter device for an additive manufacturing device for purifying a process gas of the additive manufacturing device, the filter device having at least one permanent filter for purifying a process gas during operation, the permanent filter having at least one coating. The invention also relates to a method for producing such a filter device. The invention further relates to an additive manufacturing device and to a method for additive manufacturing.
B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B01D 46/10 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material
B01D 46/54 - Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
B01D 46/58 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
B01D 39/08 - Filter cloth, i.e. woven, knitted or interlaced material
B01D 39/10 - Filter screens essentially made of metal
B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
01 - Chemical and biological materials for industrial, scientific and agricultural use
06 - Common metals and ores; objects made of metal
Goods & Services
Chemicals for use in industry; Chemicals for use in science; Unprocessed artificial resins; Unprocessed plastics, in particular in form of liquids, granules, powder and/or paste. Metals in powder form; Sinter powders of metal or containing metal; Alloys of metal.
84.
METHOD AND DEVICE FOR GENERATING CONTROL DATA FOR AN ADDITIVE MANUFACTURING DEVICE
The invention relates to a method for generating control data (PS, BS) for a device (1) for additively manufacturing a component (2), said method comprising the steps: - obtaining or generating layer information (SI) comprising layer structures of the component, wherein layer structures should be solidified with a number of predefined filling patterns (F) in the form of hatching composed of parallel solidification paths (B), - dividing solidification paths (B) of at least one of the filling patterns (F) into at least a first group (G1), a second group (G2), and a third group (G3), wherein each group (G1, G2, G3) substantially comprises solidification paths (B) which are not directly adjacent to one another, - determining an irradiation sequence of the solidification paths (B) of the groups (G1, G2, G3), wherein firstly the solidification paths (B) of the first group (G1) are solidified, then the solidification paths (B) of the second group (G2), and then the solidification paths (B) of the third group (G3), - generating control data (PS, BS) in such a way that the additive manufacturing device (1) can use said control data (PS, BS) to generate a filling pattern (F) in accordance with the corresponding irradiation sequence. The invention also relates to: corresponding control data; a control-data-generating device; a control means for a device for additively manufacturing a component; such a device for additively manufacturing components; and a method for additively manufacturing a component.
Nickel alloys in powder form comprising at least 40 wt.-% Ni, about 20.0 to 25.0 wt.-% Cr, about 5.0 to 25.0 wt.-% Co and about 1.5 to 5.0 wt.-% Ti, which have a content of B in an amount of less than 40 ppmw, are disclosed. Corresponding alloys have the advantage of providing minimal or no micro-cracks as well as an improved ductility in creep conditions compared to similar alloys having a higher content of B, when the alloys are processed by additive manufacturing to prepare three-dimensional objects.
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
C22C 19/05 - Alloys based on nickel or cobalt based on nickel with chromium
C22F 1/10 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
A passivation device for passivating filter residues of a filter device arranged in a process gas circuit of an additive manufacturing apparatus includes a reaction unit having an inlet suitable for supplying an oxidant, a coupling unit adapted to be coupled to the filter device for introducing filter residues into the reaction unit, a discharge unit suitable for discharging passivated filter residues from the reaction unit, and an energy supply unit suitable for effecting a reaction between the filter residues and the oxidant in the reaction unit.
B22F 1/145 - Chemical treatment, e.g. passivation or decarburisation
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B01F 27/72 - Mixers with rotary stirring devices in fixed receptaclesKneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG, KÖRPERSCHAFT DES ÖFFENTLICHEN RECHTS (Germany)
Inventor
Bück, Andreas
Dechet, Maximilian
Fischer, Sybille
Freihart, Karl
Pfister, Andreas
Schmidt, Jochen
Sesseg, Jens
Unger, Laura
Abstract
The present invention relates to a composition comprising at least one polymer, the polymer solidifying from a molten material in a substantially amorphous or completely amorphous form. The present invention further relates to a method for producing the composition according to the invention, to a structural component comprising a composition according to the invention and to the use of the composition according to the invention.
A method for determining a distance in an additive manufacturing device includes emitting a number of directed beams using a number of beam sources, detecting at least one of the directed beams from a first beam source using a first detector and generating a signal in dependence on the at least one beam impinging on the least one detector, wherein a recoating element is spatially arranged between the first beam source and the first detector, and determining a distance between a boundary of the recoating element and a surface of a building base and/or an article placed on the building base, based on the signal generated by the detector and using an evaluation unit.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The invention relates to a sensor arrangement (9) for a device (1) for additive manufacturing of a component (2) in a manufacturing process in which build material (13), preferably comprising a metal powder, is solidified in a building area (8) in a process space (3) by means of irradiation of the build material (13) with at least one energy beam (AL), said sensor arrangement (9) comprising: - a sensor module (90) designed to detect oxygen molecules in a gas sample (P) that penetrates into the sensor module (90) and to generate an electrical sensor signal (S) based on the amount of oxygen molecules, - a selective filter element (F) designed to filter the gas sample (P) such that at least hydrogen molecules and/or hydrogen ions and/or water molecules and/or hydroxide ions are filtered out of the gas sample (P). The invention further relates to a manufacturing device and to a test method comprising such a sensor arrangement.
The invention relates to a sensor arrangement (9) for an apparatus (1) for additive manufacturing of a component (2) in a manufacturing process in which, on a build zone (8) in a process area (3), construction material (13), preferably comprising a metal powder, is solidified by means of irradiation of the construction material (13) using at least one energy beam (AL), the sensor arrangement (9) comprising: – a sensor module (90), designed to detect oxygen molecules in a gas sample (P) penetrating into the sensor module (90) and to generate an electrical sensor signal (S) on the basis of the quantity of oxygen molecules, – a control module (95), designed to determine whether the sensor module (90) is measuring outside a predetermined action range on the basis of a comparison of the sensor signal (S) or of a variable derived from the sensor signal (S) with a predefined limit value (G), and if this is the case, to generate a control signal (SL) designed to initiate a predetermined countermeasure that is intended to change the conditions in the apparatus (1) so that the sensor module (90) measures in the action range (AB) again. The invention furthermore relates to a manufacturing apparatus and to a measuring method with such a sensor arrangement.
Disclosed is a method for controlling an energy input device of an additive manufacturing device. A beam bundle deflection center is assigned to each of the number of beam bundles from which this beam bundle is directed onto the build plane. Each beam bundle deflection center is assigned a projection center corresponding to a perpendicular projection of the position of the beam bundle deflection center onto the build plane. The directions of the movement vectors of the number of beam bundles when scanning the trajectories are defined such that at each of the solidification points in this section the movement vector has an angle with respect to a connection vector from this solidification point to the projection center of the beam bundle used, which angle is smaller than a predetermined maximum angle γ1.
Method for moderating a reaction of metal particles, in particular metal condensates, preferably from an additive manufacturing process, in particular a laser sintering or laser melting process, wherein the metal particles are combined, in particular mixed, with an at least partially meltable inerting material, wherein the inerting material comprises particles with a particle size of less than or equal to 100 µm.
The invention relates to a calibration method of a device for layered additive manufacturing of items, which device comprises: a control device for controlling the layered additive manufacturing process; a layer deposition device which is designed to provide a layer of a construction material; and an energy supply device which is designed to solidify points of the layer by supplying electromagnetic radiation; wherein the energy supply device is designed to be moved over the construction region and a predefined target direction (X) is specified to the energy supply device for this movement; and wherein the energy supply device comprises a number of radiation emitters which are arranged along an arrangement direction (Y) transversely to the predefined target direction (X); and, depending on the points, the control device specifies to the radiation emitters the emission locations at which radiation should be emitted over the construction region; in which calibration method it is determined whether the movement of the energy supply device leads to a deviation of the movement direction (B) from the predefined target direction (X) and the control device is prompted to specify other emission locations to the radiation emitters on the basis of a determined deviation.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/31 - Calibration of process steps or apparatus settings, e.g. before or during manufacturing
B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
The present invention relates to a method of treatment of objects produced by an additive manufacturing method, having at least one surface formed from a polymer having a glass transition temperature of at least 120°C, and preferably being formed from such a polymer, and in which the surface of the object is contacted with an organic or inorganic solvent. Such a treatment can smooth the surface of the objects and improve relevant mechanical properties. The present invention further relates to three-dimensional objects produced by such a method and to the use of organic or inorganic solvents for reduction of surface roughness and/or for improvement of mechanical properties and/or chemical stability.
The invention relates to a filter device (1) for filtering a process gas. In particular, the process gas can be a process gas of a device (101) for the additive manufacture of three-dimensional objects (102), and the filter device (1) comprises: a filter chamber (10), at least one filter element (20) which is arranged in the filter chamber and which is designed to filter the process gas, wherein a filter residue remains, a fluid flow generating device (40, 40') which is designed to generate a fluid flow, and a conveyor device (50) for conveying the filter residue in the fluid flow, said conveyor device being designed and/or arranged such that the filter residue is at least partly removed from the filter chamber (10) and is conveyed back into the filter chamber (10).
The invention relates to a passivating device (1) for passivating a filter residue resulting in a filter device (10). The passivating device (1) comprises an outlet region (3, 3') for receiving filter residue from the filter device (10), a fluid feed (4, 4') for supplying a fluid flow of a fluid, which can comprise a passivating agent, to the outlet region (3, 3'), a fluid discharge (5) for discharging the fluid flow and the filter residue out of the outlet region (3, 3'), and an energy supply device (70, 70', 70'') for supplying the fluid flow and/or the filter residue with energy. The passivating device (1) is designed and/or can be controlled so as to produce a chemical reaction between the filter residue and the passivating agent at least partly in an entrained flow. In addition, the passivating device optionally comprises a passivating agent feed for mixing the fluid flow with a passivating agent.
The invention relates to a method and a device (60) for generating optimized process variable values (PGO) for an additive manufacturing process of a manufactured product (2, 2', 2"). For this purpose, request data (AD) of the manufactured product (2, 2', 2") is provided, said data comprising at least geometric data (GD) of the manufactured product (2, 2', 2"). A region (G) is then defined which encompasses the manufactured product (2, 2', 2"), said manufactured product comprising at least one segment (SG, SG1, SG2, SG3). An optimization method is then carried out for at least one segment (SG, SG1, SG2, SG3) of the manufactured product (2, 2', 2") in the defined region (G) in order to select at least one optimal parameter set (PS), which comprises a defined group of process parameter values, from a number of candidate parameter sets (KPS) and in order to ascertain an optimized segment scanning direction distribution (SSV) using a defined target function (ZF) and the request data (AD). The optimal parameter set (PS) and the optimized segment scanning direction distribution (SSV) are provided in the form of optimized process variable values (PGO). The invention additionally relates to a method and a control data generating device (54, 54') for generating control data (BSD, PSD), to a method for controlling a control device (50) for a production device (1) for an additive manufacturing process, and to a corresponding production device (1).
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/36 - Process control of energy beam parameters
B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The invention relates to a method and a device (70) for ascertaining property values of a segment (SG, SG1, SG2, SG3) of a manufactured product (2, 2', 2"), which is made of multiple layers (L, L1, L2, L3, L4) of a construction material (13), of an additive manufacturing process. In the process, a parameter set (PS, PS') is ascertained which comprises a defined group of process parameter values for the construction process of at least one layer (L, L1, L2, L3, L4) of the segment (SG, SG1, SG2, SG3). At least one process parameter value comprises a layer scanning direction arrangement (HS2, HS3). Furthermore, at least one segment scanning direction distribution (SSV) is ascertained for the construction process of the segment (SG, SG1, SG2, SG3). A macroproperty value (MWA) of the segment is ascertained on the basis of the parameter set (PS) and the segment scanning direction distribution (SSV). The invention additionally relates to a method and a testing device (80) for testing a manufactured product (2, 2', 2"), to a control data generating device (54, 54') which comprises such a testing device (80), to a control device (50) for a production device (1), said control device comprising such a control data generating device (54, 54'), and to a production device (1). The invention also relates to a method for setting up a basic property database (EDB) and to a property database system (DBS) comprising such a basic property database (EDB).
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The invention relates to a method for oxidizing particles on a filter element of an additive manufacturing device. The additive manufacturing device has a process chamber (3) for producing a three-dimensional object (2) and a circulating system (31, 32, 33, 34, 35, 40) with a gas circuit, which is closed during operation, for a protective gas, which is conducted through the process chamber (3). A filter system (40) is connected to the circulating system, wherein the filter system has at least one filter chamber (41) which contains a filter element (43) for filtering particles in the protective gas flow, said filter elements being cleanable by a gas pressure pulse. The filter element is then cleaned by means of a gas pressure pulse, and the cleaned filter element is then exposed to an oxidizing agent for a period of time defined in advance or the cleaned filter element is exposed to said oxidizing agent for a period of time which is controlled using a sensor for detecting the concentration of the oxidizing agent.
B01D 46/48 - Removing dust other than cleaning filters
B01D 46/56 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber
The invention relates to a method for oxidizing welding fume residue of an additive manufacturing device designed to process a metal-based construction material. The additive manufacturing device has a process chamber (3) for producing a three-dimensional object (2) and a recirculating system (31, 32, 33, 34, 35, 40) with a gas circuit for a protective gas which is conducted through the process chamber (3). In the method, the welding fume residue is exposed to an oxidizing agent in a chamber for a passivation period of time, wherein the passivation period of time is terminated on the basis of a difference between oxidizing agent concentrations detected in the chamber by at least one sensor at two points in time separated by a delay.
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
B01D 46/80 - Chemical processes for the removal of the retained particles, e.g. by burning
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber
