Abstract

The invention relates to a cable-driven parallel robot (1) comprising: a movable platform (10) intended to be suspended by cables (20), each of the cables (20) having one cable strand (21) configured to be tensioned between a first strand (21) end (211) connected to the movable platform (10) and a second strand (21) end (212) connected to a structure (30) fixed in space; and winding assemblies (40), each winding assembly (40) being connected to a pair (20′) of associated cables (20) from among the cables (20) and being configured to synchronously wind the pair (20′) of associated cables (20); the cable-driven parallel robot (1) being characterized in that when the platform (10) occupies a reference orientation relative to the vertical (Z), the first strand (21) ends (211) of the cables (20) in a single pair (20′) of cables (20) are vertically (d1″) and horizontally offset (d1′) from one another.

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators

Abstract

A dynamic induction welding installation for welding first and second workpieces in a weld zone (S), the second workpiece being placed between a lightning protection system and the first workpiece, the workpieces including a composite material, the installation having an induction heating device placed on one side of the first workpiece facing away from the second workpiece and configured to create a magnetic field (Bi) so as to form the weld in the weld zone (S), and a medium placed in contact with the lightning protection system on a side opposite to the second workpiece, the medium being configured so as to be capable of generating a reaction magnetic field (B2) at least partially opposing the magnetic field (B1) in at least a part of the lightning protection system.

IPC Classes  ?

• B29C 65/36 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
• B29C 65/00 - Joining of preformed partsApparatus therefor

Abstract

A method for the additive manufacturing of a metal part on a substrate, by adding at least one molten metal layer by layer. The method includes the following steps: a) step a: depositing the molten metal layer by layer, b) step b: simultaneously with step a), cooling, by means of a cooler that is mobile relative to the substrate, a cooling zone located at least around the layer deposited immediately prior to the layer currently being deposited.

IPC Classes  ?

• B22F 12/20 - Cooling means
• B22F 10/22 - Direct deposition of molten metal
• B22F 10/50 - Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
• B22F 12/70 - Gas flow means
• B33Y 10/00 - Processes of 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
• B33Y 80/00 - Products made by additive manufacturing

Abstract

The invention relates to a pressing-down tool (100) comprising a holder (10) and at least one pressure-bagging membrane (20) secured to the holder (10), the pressure-bagging membrane (20) being inflatable by a fluid and configured such that for a predetermined pressure applied by the fluid-inflated pressure-bagging membrane (20) to a surface (S) that is to be pressed down, the pressure-bagging membrane (20) deforms to ensure surface contact forming a bearing surface (S'), of a surface-area comprised within a predetermined surface-area range, in which the pressure-bagging membrane (20) bears against the surface (S) that is to be pressed down.

IPC Classes  ?

• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
• B29C 70/30 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core
• B65H 3/08 - Separating articles from piles using pneumatic force
• B29D 99/00 - Subject matter not provided for in other groups of this subclass
• B29C 33/50 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic
• B29C 43/52 - Heating or cooling
• B25J 15/06 - Gripping heads with vacuum or magnetic holding means
• B29C 33/40 - Plastics, e.g. foam or rubber
• B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
• B25J 9/00 - Programme-controlled manipulators
• B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
• B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
• B29C 73/32 - Apparatus or accessories not otherwise provided for for local pressing or local heating using an elastic element, e.g. inflatable bag
• B30B 1/00 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen

Abstract

The invention relates to a method for the layer-by-layer additive manufacturing of a metal part comprising moving an arc welding torch (3) above a substrate (40), wherein, during the movement of the torch (3): - an electric arc (43) is used to form, in particular between the torch (3) and the substrate (40), a weld pool (45) on the substrate (40), - a metal deposition is carried out on the substrate (40) with two supply wires (11, 14), a first supply wire (11) being unwound towards the welding arc (43), a second supply wire (14) being unwound so as to plunge into the weld pool (45), - vibrations are transmitted by the second wire (14) to the weld pool (45).

IPC Classes  ?

• B23K 9/022 - Welding by making use of electrode vibrations
• B23K 9/04 - Welding for other purposes than joining, e.g. built-up welding
• B23K 9/12 - Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
• B23K 9/167 - Arc welding or cutting making use of shielding gas and of a non-consumable electrode
• B23K 9/173 - Arc welding or cutting making use of shielding gas and of consumable electrode
• B23K 9/18 - Submerged-arc welding
• B23K 10/02 - Plasma welding
• B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
• B23K 35/32 - Selection of soldering or welding materials proper with the principal constituent melting at more than 1550°C
• B23K 103/14 - Titanium or alloys thereof
• B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding

Abstract

The invention relates to a method for manufacturing a high-pressure tank (10) for gas, in particular for hydrogen, which comprises the following steps: a) depositing, in particular by draping, at least one first shell (5) made of composite material with a thermoplastic matrix on a liner (1) that is impermeable to the gas, in particular to hydrogen, having at least two opposing main walls (2) connected by through-shafts (4), so as to externally cover at least the opposing main walls (2); b) inserting rivets (15) made of a composite material with a thermoplastic matrix into through-shafts (14) of the liner (1) through the first shell (5), before consolidating the latter; and c) widening by thermoforming at least one end (21) of the rivets (15) emerging from the through-shafts (4), preferably both of the ends (21) thereof, so as to form widened ends (16) capable of taking up at least some of the pressure forces exerted on the opposing main walls (2) of the liner (1).

IPC Classes  ?

• F17C 1/16 - Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials

Abstract

The invention relates to a method for automated alignment of a stationary part (1) with a movable part (2) capable of being moved towards the stationary part by a robot (3), the stationary part (1) and the movable part (2) each comprising an end (4, 5), the two ends forming an alignment interface (6). The method comprises the steps of positioning of multiple profilometers around the alignment interface so that the alignment interface is located in the field of view of the profilometers, determination of a target profile of the end of the movable part, measurement of a profile of the end of the movable part by the profilometers, comparison of the target profile and the measured profile, generating a speed setpoint in the measurement space, and movement of the movable part towards the stationary part (1) by the robot (3) on the basis of this speed setpoint.

IPC Classes  ?

• B25J 9/16 - Programme controls
• B64C 1/26 - Attaching the wing or tail units or stabilising surfaces

Abstract

The invention relates to a method for the automated assembly of a stationary part (1) with a moving part (2) capable of being displaced relative to the stationary part by a robot. The method comprises the following steps of: determining reference points at the first end (3) of the stationary part (1) and at the second end (4) of the moving part; positioning at least one camera (5, 6, 7) such that the reference points of the two parts are in the camera's field of vision; applying a primary visual control loop based on images of the ends of the two parts to determine a first displacement instruction for the robot; and applying a secondary visual control loop comprising a computation using the principle of vector fields based on images of the ends of the two parts to generate a second displacement instruction for embedding the parts.

IPC Classes  ?

• B25J 9/16 - Programme controls

Abstract

The invention relates to a method for assembling a metal part and a part made of thermoplastic composite material using a tool, the method comprising the following steps: positioning the metal part (12) in a first portion (11) of the tool (10); positioning the part (1) made of composite material between the metal part (12) and a second portion (13) of the tool, the parts (1, 12) having faces (4, 15) facing one another that do not match in terms of shape; bringing the tool (10) into the closed configuration in order to plastically deform the part made of composite material (1) over and into the shape of the metal part (12), the composite material and the metal part adhering to one another (i) without any materials being added or any of the parts being modified, (ii) by means of a surface treatment, and/or (iii) by means of a bonding agent (5 or 21 (figure 9)).

IPC Classes  ?

• B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
• B29C 43/20 - Making multilayered or multicoloured articles
• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• B29C 70/68 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers
• B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
• B29C 63/04 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor using sheet or web-like material by folding, winding, bending or the like
• B29C 63/48 - Preparation of the surfaces
• B62D 29/00 - Superstructures characterised by material thereof
• B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
• B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
• B29K 705/00 - Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
• B29C 63/00 - Lining or sheathing, i.e. applying preformed layers or sheathings of plasticsApparatus therefor
• B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
• B29C 51/14 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor using multilayered preforms or sheets
• B29C 51/16 - Lining or labelling

Abstract

The invention relates to a method for smoothing a surface (30) to be smoothed by a smoothing tool (100) comprising an elastically deformable smoothing ball (20). The invention is characterised in that the smoothing ball (20) is moved over the surface (30) to be smoothed, maintaining a contact interface (40) between the smoothing ball (20) and the surface (30) to be smoothed having an area of greater than 5% (formula (I)), preferably greater than 10% (formula (I)), and/or less than 90% (formula (I)), preferably less than 30% (formula (I)), where D is the diameter of the smoothing ball (20).

IPC Classes  ?

• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
• B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or

Abstract

The invention relates to a method for attaching a tool (20) to an arm (10) of a robot (1), comprising at least the following steps: - transitioning from a relative approach position to a relative integration position by a relative translational movement (MI) between the tool (20) and the arm (10) of the robot (1) parallel to a reference axis (AI) of the arm (10) of the robot (1), such that the reference axis (AI) of the arm (10) of the robot (1) is coaxial with a reference axis (A2) of the tool (20), and so as to cause studs (30) to penetrate associated notches (40), each of the notches (40) being associated with a sub-assembly from among the tool (20) and the arm (10) of the robot (1) and associated with one of the studs (30) secured to the other sub-assembly from among the tool (20) and the arm (10) of the robot (1); then - transitioning from the relative integration position to a relative assembly position by a relative rotational movement (M2) between the tool (20) and the arm (10) of the robot (1) about the axis of rotation, such that each of the studs (30) becomes housed in a circumferential extension (41) of the associated notch (40) and is axially retained therein; then - locking in the relative assembly position by a relative translational movement (M3) parallel to the reference axis (AI) of the arm (10) of the robot (1), between the assembly formed by the tool (20) and the arm (10) of the robot (1) in the relative assembly position and at least one locking part (50), such that wedges (51) secured to the locking part (50) penetrate the notches (40) and lock the studs (30) in position, in the locking position.

IPC Classes  ?

• B25J 15/04 - Gripping heads with provision for the remote detachment or exchange of the head or parts thereof

Abstract

The invention relates to a structural element (10) for a composite acoustic structure (100), the structural element comprising at least one cellular core (20) having a network of hollow cells (21) delimited by partitions (22) that extend between two faces (23, 24) of the cellular core (20), and at least one resistive skin (30) covering one of the faces of the cellular core (20), the structural element (10) being characterised in that it comprises a plurality of applied inserts (50), each insert (50) having a tubular through-body (51) open at the ends (53, 54) thereof, and a flange (52) protruding from the associated tubular body (51), and in that the resistive skin (30) is perforated by each of the inserts (50) positioned facing all or some of the cells (21) such that, for each insert (50), the flange (52) is positioned against the resistive skin (30) on a first side, and the tubular body (51) opens out on a second side opposite the first side.

IPC Classes  ?

• B32B 3/08 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
• B32B 3/12 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material characterised by a layer of regularly-arranged cells whether integral or formed individually or by conjunction of separate strips, e.g. honeycomb structure
• B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• B32B 7/05 - Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 7/14 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
• B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
• B32B 15/14 - Layered products essentially comprising metal next to a fibrous or filamentary layer
• B32B 27/34 - Layered products essentially comprising synthetic resin comprising polyamides
• B32B 27/38 - Layered products essentially comprising synthetic resin comprising epoxy resins

Abstract

The invention relates to a method for welding a first profiled composite part (5) with a thermoplastic matrix and particles, in particular reinforcing, electrically conductive and/or ferromagnetic fibres, such as a stiffener, to a second composite part with a thermoplastic matrix and particles, in particular reinforcing, electrically conductive and/or ferromagnetic fibres, such as an aircraft panel, the method comprising the steps of: - preheating a joining zone in which the first part is to be joined to the second part using a preheating means (20), in particular a contactless means, which is moved along the first part (5) while facing same in order to raise the temperature of the joining zone; induction-welding the first (5) and second (6) parts in the preheated joining zone using an inductor (10) which is moved along the same side of the first part (5) as the preheating means (20).

IPC Classes  ?

• B29C 65/36 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
• B29C 65/10 - Joining of preformed partsApparatus therefor by heating, with or without pressure using hot gases
• B29C 65/14 - Joining of preformed partsApparatus therefor by heating, with or without pressure using wave energy or particle radiation
• B29C 65/72 - Joining of preformed partsApparatus therefor by combined operations, e.g. welding and stitching
• B29K 101/12 - Thermoplastic materials
• B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers

Abstract

The invention relates to a method for creating an ancillary element (E) on a part (P), notably in order to functionalize same, particularly a part (P) made from a composite material comprising a thermosetting polymer matrix, the method comprising the following steps: a) using a robot arm (3) to position a mould (10) over the part (P), the mould (10) having a cavity (12) of a shape corresponding to the element (E) that is to be created, this cavity (12) having an opening (13), the mould (10) being positioned over the part (P) in such a way that the opening (13) of the mould (10) is closed by at least one exterior surface (S) of the part (P); b) injecting a thermosetting resin into the mould (10) held against the part (P) under conditions that allow the resin to polymerize; and c) demoulding the element (E) thus overmoulded on the part (P).

IPC Classes  ?

• B29C 45/04 - Injection moulding apparatus using movable moulds
• B29C 45/07 - Injection moulding apparatus using movable injection units
• B29C 45/08 - Injection moulding apparatus using movable injection units moving with the mould during the injection operation
• B29C 45/17 - Component parts, details or accessoriesAuxiliary operations
• B29C 45/64 - Mould opening, closing or clamping devices
• B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• B29C 45/76 - Measuring, controlling or regulating
• B29C 45/26 - Moulds

Abstract

Disclosed is a method for producing a three-dimensional preform (1) comprising the following steps: (a) depositing at least one strip (2) of fibers (5) on a three-dimensionally shaped substrate (3); (b) sewing the at least one strip (2) of fibers (5) onto the substrate (3) with at least one sewing thread (4) forming a seam (6).

IPC Classes  ?

• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
• B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns

Abstract

Method for producing a composite material part (35), from a fibrous preform (15), in a mold (10) comprising first and second shells (11, 12) and able to open or closed, the method comprising the following steps: Step a: arranging, in the open mold (10), the fibrous preform (15) and at least drainage element (16) covering the preform (15), at least partially, from below and/or from above; Step b: closing the mold (10); Step c: injecting, at low pressure, a polymer material into the mold (10) through at least one orifice (31) made in the first shell (11) so as to at least partially impregnate the fibrous preform (15) with said injected polymer material; and Step d: bringing about the polymerization of said injected polymer material so as to form the part (35).

IPC Classes  ?

• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
• B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]

Abstract

The invention relates to a cable-driven parallel robot (1) comprising: a movable platform (10) intended to be suspended by cables (20), each of the cables (20) having one cable strand (21) configured to be tensioned between a first strand (21) end (211) connected to the movable platform (10) and a second strand (21) end (212) connected to a structure (30) fixed in space; and winding assemblies (40), each winding assembly (40) being connected to a pair (20') of associated cables (20) from among the cables (20) and being configured to synchronously wind the pair (20') of associated cables (20); the cable-driven parallel robot (1) being characterised in that when the platform (10) occupies a reference orientation relative to the vertical (Z), the first strand (21) ends (211) of the cables (20) in a single pair (20') of cables (20) are vertically (d1") and horizontally offset (d1') from one another.

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators

Abstract

The invention relates to a parallel cable-operated robot (1) inspecting a component (200), the parallel cable-operated robot (1) comprising: cables (20); a mobile platform (10) intended to be suspended from the cables (20), each of the cables (20) having a length (21) of cable that is configured to be stretched between a first end (211) of the length (21), which end is connected to the mobile platform (10), and a second end (212) of the length (21), which end is connected to a structure (30) that is fixed in space; winding assemblies (40), each winding assembly (40) being connected to at least one associated cable (20) from among the cables (20) so as to wind in or pay out the associated cable (20); and a control assembly for controlling the winding assemblies (40) of the mobile platform (10) and for monitoring the movement of the mobile platform (10), the parallel cable-operated robot (1) being characterized in that the platform (10) comprises at least one inspection tool (60) and at least one orientable mechanism (50) supporting the inspection tool (60), the orientable mechanism (50) being configured to move the inspection tool (60) with respect to the platform (10), the inspection tool (60) comprising at least one inspection sensor configured to map the inspected zones of the component (200), the parallel cable-operated robot (1) comprising location means configured to locate the maps made by the inspection sensor on a digital model of the part (200) inspected.

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators
• B64F 5/00 - Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided forHandling, transporting, testing or inspecting aircraft components, not otherwise provided for

Abstract

The invention relates to a method for manufacturing a hollow, axisymmetric part (10) which is made of composite material and extends along a longitudinal axis (X), the method comprising the following steps: a) step a: producing a tube (2) by pultruding fibres (1) with or without impregnating the fibres (1) with a polymer material; b) step b: cutting the tube (2) lengthwise into a plurality of tube portions (4); c) step c: arranging all or part of the tube portions (4) around a cylindrical mandrel (M); and d) step d: producing a filament winding (6) of fibres (7) around the mandrel (M) and the tube portions (4).

IPC Classes  ?

• B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
• B29C 70/32 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
• F16L 9/14 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
• F16L 9/18 - Double-walled pipesMulti-channel pipes or pipe assemblies
• B63B 15/00 - SuperstructuresArrangements or adaptations of masts
• E04H 12/02 - Structures made of specified materials

Abstract

The invention relates to a cable-driven parallel robot (1) for inspecting a workpiece, comprising: a movable platform (10) intended to be suspended by cables (20), each of the cables (20) having one cable strand (21) configured to be tensioned between a first strand (21) end (211) connected to the movable platform (10) and a second strand (21) end (212) connected to a structure (30) fixed in space; winding assemblies (40), each winding assembly (40) being connected to at least one associated cable (20) from among the cables (20) in order to wind or unwind the associated cable (20); and a control assembly for controlling the winding assemblies (40) of the movable platform (10) and controlling the movement of the movable platform (10) in an operative operating mode; the cable-driven parallel robot (1) being characterised in that it comprises means for detecting the breakage of at least one of the cables (20), connected to the control means, the control means being configured to control the winding assemblies (40) in a degraded mode different from the operative operating mode when the detection means detect the breakage of at least one of the cables (20).

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators
• B25J 9/16 - Programme controls
• B25J 19/06 - Safety devices

Abstract

The invention relates to a heating apparatus (1) for performing localised thermal activation of a predetermined zone (Z) of a thermoplastic polymer matrix composite part (P), comprising: - a heating device (2) with infrared emitter(s) (6), - a mask (3) comprising at least one perforated zone (4), the mask (3) being arranged relative to the composite part (P) without contacting said part and so as to at least partially superimpose said at least one perforated zone (4) with said predetermined zone (Z), the mask (3) being positioned between the composite part (P) and the heating device (2), - an element (5) for controlling the heating device (2), the apparatus (1) being configured to allow localised thermal activation of said predetermined zone (Z) through said mask (3) at a temperature at least equal to the melting temperature of the thermoplastic polymer and also to preserve the other zones (Za) of the composite part (P) from its deconsolidation temperature.

IPC Classes  ?

• B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
• B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
• B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• B29C 45/73 - Heating or cooling of the mould
• B29C 33/06 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means using radiation

Abstract

211) created by the induction heating device (8) in at least a part of the core (4) located close to the surface (6) to be welded of the first part (2).

IPC Classes  ?

• B29C 65/36 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
• B29K 101/12 - Thermoplastic materials
• B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
• B29K 305/00 - Use of metals, their alloys or their compounds, as reinforcement
• B29K 307/04 - Carbon
• B64C 1/12 - Construction or attachment of skin panels
• B64D 45/02 - Lightning protectorsStatic dischargers
• B64F 5/10 - Manufacturing or assembling aircraft, e.g. jigs therefor

Abstract

The invention relates to an effector for dynamic welding of at least two parts made of composite material comprising a thermoplastic polymer matrix, the effector comprising: - at least one welding device, for heating at least one zone of at least one of the parts to a temperature greater than or equal to the melting temperature of said thermoplastic polymer matrix in order to weld said at least two parts together at said at least one zone; and - at least one post-heating device configured to heat said at least one zone in order to supply heat to said zone without the temperature thereof exceeding the crystallisation onset temperature of said thermoplastic polymer matrix.

IPC Classes  ?

• B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure
• B29C 65/08 - Joining of preformed partsApparatus therefor by heating, with or without pressure using ultrasonic vibrations
• B29C 65/14 - Joining of preformed partsApparatus therefor by heating, with or without pressure using wave energy or particle radiation
• B29C 65/18 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated tool
• B29C 65/36 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
• B29C 65/72 - Joining of preformed partsApparatus therefor by combined operations, e.g. welding and stitching
• B29K 101/12 - Thermoplastic materials

Abstract

The invention relates to an effector (13) for dynamic welding of at least two parts (17) made of composite material comprising a thermoplastic polymer matrix, the effector (13) comprising: - at least one heating device (11), in particular an inductive or ultrasonic heating device, for heating at least one of the parts (17), and - at least one pressing device (12) comprising a central element (25) and a rolling band (18) which surrounds the central element (25) and is movable therearound such that, when, during operation, the effector (13) moves relative to the parts (17): · the rolling band (18) rotates in a closed loop around the central element (25), the loop being circular or non-circular, · a portion of the rolling band (18) ▫ is in contact via an instantaneous bearing surface (19) with an outer surface (16) of at least one of said parts (17), the portion of the rolling band forming the bearing surface (19) varying during the movement of the effector (13), and ▫ exerts a surface pressure on said outer surface (16).

IPC Classes  ?

• B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure
• B29C 65/08 - Joining of preformed partsApparatus therefor by heating, with or without pressure using ultrasonic vibrations
• B29C 65/14 - Joining of preformed partsApparatus therefor by heating, with or without pressure using wave energy or particle radiation
• B29C 65/36 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction

Abstract

211) in at least a part of the lightning protection system (15).

IPC Classes  ?

• B23K 13/01 - Welding by high-frequency current heating by induction heating
• B29C 65/36 - Joining of preformed partsApparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
• B23K 103/16 - Composite materials
• B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation

Abstract

The invention relates to a method for the additive manufacturing of a metal part (50) on a substrate (2), by adding at least one molten metal layer by layer. The method comprises the following steps: a) step a: depositing the molten metal layer by layer, b) step b: simultaneously with step a), cooling, by means of a cooler (7) that is mobile relative to the substrate (2), a cooling zone (8) located at least around the layer (n-1) deposited immediately prior to the layer currently being deposited (n).

IPC Classes  ?

• B22F 10/22 - Direct deposition of molten metal
• B22F 10/47 - Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by structural features
• B22F 10/50 - Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
• B22F 12/20 - Cooling means
• B22F 12/30 - Platforms or substrates
• B23K 26/342 - Build-up welding
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 80/00 - Products made by additive manufacturing
• B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product

Abstract

Disclosed is a method for making a carbon fibre from a paper product. The method includes preparing a cellulose-based fibre by crushing the paper product, dissolving the crushed material obtained in an aqueous phosphoric acid solution to form a spinning solution, and forming a cellulose-based continuous fibre by use of a solvent spinning process. The cellulose fibre formed in this way is subjected to carbonisation treatment in order to form a carbon fibre.

IPC Classes  ?

• C08J 5/24 - Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
• C01B 32/05 - Preparation or purification of carbon not covered by groups , , ,
• D01F 9/16 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetat

Abstract

The invention relates to a mobile platform (10) intended to be suspended by suspension cables (11) having an anchoring end (110) attached to a stationary structure (10) in space, the mobile platform (10) comprising: a motor assembly (20) having motorised winding drums (21), each intended to be attached to an associated cable (11) among the suspension cables (11) in order to wind or unwind the associated cable (11); a support structure (30) for supporting the motor assembly; the mobile platform (10) being characterised in that it comprises a suspension platform (40) rigidly secured to the support structure (30) and arranged, along a reference axis (A) of the mobile platform (10), at a distance from the winding drums (21) of the motor assembly (20), the suspension platform (40) comprising deflection members (41), each separated from an associated drum (21) among the winding drums (21) and configured to deflect the cable (11) associated with the associated drum (21), between the associated drum (21) and the anchoring end (110) of the associated cable (21), in a suspended position of the moving platform (10), in which the reference axis (A) is vertical (Z) and the suspension platform (40) is located above the winding drums (21).

IPC Classes  ?

• B25J 9/00 - Programme-controlled manipulators

Abstract

Disclosed is a method for producing a three-dimensional preform (1) comprising the following steps: (a) depositing at least one strip (2) of fibers (5) on a three-dimensionally shaped substrate (3); (b) sewing the at least one strip (2) of fibers (5) onto the substrate (3) with at least one sewing thread (4) forming a seam (6).

IPC Classes  ?

• B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements

Abstract

Disclosed is a method for manufacturing a flat preform (1), the method comprising the following steps: (a) depositing at least one layer of fibers (11) on a substrate (10) and sewing the at least one layer of fibers (11) with at least one sewing thread (110) onto the substrate (10); (b) depositing at least one film (12) of thermoplastic polymer material on said at least one layer of fibres (11); (c) fastening the at least one film (12) onto the at least one layer of fibers (11); (d) repeating step (a) at least once with at least one new layer of fibers (28) on the film (12); (e) optionally, repeating step (b) and step (c) at least once with at least one new film (29) made of a thermoplastic polymer material.

IPC Classes  ?

• B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements

Abstract

The method comprises the following consecutive steps: providing at least one reinforcement layer and at least one matrix sheet made of thermoplastic material; forming a complex with the reinforcement layer and the matrix sheet; and placing the complex in a production tool so that the thermoplastic material impregnates the fibers of the reinforcement layer(s) in order to form a prepreg. The method comprises, in the production tool, the following consecutive steps: heating the complex to a temperature higher than the melting temperature of the thermoplastic material without applying pressure; heating the complex to a temperature higher than the melting temperature of the thermoplastic material while applying a production pressure higher than atmospheric pressure.

IPC Classes  ?

• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• B29B 15/12 - Coating or impregnating of reinforcements of indefinite length
• B29C 70/50 - Shaping or impregnating by compression for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
• B29K 101/12 - Thermoplastic materials
• B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns

Abstract

The invention concerns a method for producing a carbon fibre, that comprises a step of preparing a continuous fibre made of cellulose from cotton fabrics, by extracting, from these fabrics, cotton in the form of short, discontinuous fibres, and implementing a solvent spinning process; this step being followed by a step of carbonising said obtained continuous fibre made from cellulose, in order to form a carbon fibre. This carbon fibre can be used, in particular, for producing articles made from composite material made from carbon fibres and polymer organic resin.

IPC Classes  ?

• B01D 37/00 - Processes of filtration
• B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
• B29C 70/42 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles
• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
• B32B 37/16 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating
• B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
• B32B 37/20 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of continuous webs only
• D01D 1/02 - Preparation of spinning solutions
• D01D 1/10 - Filtering or de-aerating the spinning solution or melt
• D01D 5/06 - Wet spinning methods
• D01D 5/12 - Stretch-spinning methods
• D01F 1/02 - Addition of substances to the spinning solution or to the melt
• D01G 11/02 - Opening, unravelling, or teasing ropes or like fibrous strands to obtain fibres for re-use
• D02J 13/00 - Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
• D01F 9/16 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetat
• B29C 70/12 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of short length, e.g. in the form of a mat
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• D01F 1/10 - Other agents for modifying properties
• D01G 11/00 - Disintegrating fibre-containing articles to obtain fibres for re-use
• F01D 5/28 - Selecting particular materialsMeasures against erosion or corrosion
• F03D 1/06 - Rotors
• B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
• B29K 307/04 - Carbon
• B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers

Abstract

Said induction moulding device comprises an inductor (14) configured to deform by induction a portion of an electrically conductive part, the inductor (14) comprising a first power terminal (30), a second power terminal (32) and at least one inductive portion (34) electrically connecting the first power terminal (30) and the second power terminal (32), the inductive portion (34) being intended to induce an induced current in the electrically conductive part, the inductive portion (34) extending in a longitudinal direction (L) in which a supply current is intended to flow between the first power terminal (30) and the second power terminal (32), the inductive portion (34) comprising at least one notch (40) defining a narrowing of a cross section of said inductive portion (34) perpendicular to the longitudinal direction (L).

IPC Classes  ?

• B21D 26/14 - Shaping without cutting otherwise than by using rigid devices or tools or yieldable or resilient pads, e.g. shaping by applying fluid pressure or magnetic forces applying magnetic forces
• B21D 53/92 - Making other particular articles other parts for aircraft

Abstract

The invention relates to a method for repairing a part during layer-by-layer additive manufacturing using an additive manufacturing machine, the additive manufacturing being material extrusion printing, the method comprising the following steps: a) depositing at least one layer of material on a support (2) for manufacturing the part (P), b) detecting at least one unfilled finish if one or more defects of this type are present on the at least one layer, c) repairing said at least one unfilled finish by adding material, d) repeating steps a), b) and optionally c) until the part (P) is produced.

IPC Classes  ?

• B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
• B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
• B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B29C 73/02 - Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass using liquid or paste-like material

Abstract

The invention relates to a layer-by-layer additive manufacturing method of a part (P) using an additive manufacturing machine (1), the additive manufacturing being material extrusion printing, the method comprising the following steps: a) depositing at least one layer of material on a support (2) for manufacturing the part (P), b) scanning said at least one layer to acquire topographical data on said at least one layer, c) processing the acquired data to detect and geolocate at least one unfilled finish if one or more defects of this type are present on said at least one layer, d) repeating steps a), b) and optionally c) until the part (P) is produced. Step a) of depositing said at least one layer of material is carried out by means of a nozzle fixed to a carriage, said carriage being movable along at least two axes relative to the support, step b) of scanning is implemented using a scanning tool, the scanning tool being stationary with respect to the carriage.

IPC Classes  ?

• B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
• B29C 64/118 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
• B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma

Abstract

Device for manufacturing (1), by shaping and/or adding polymer material, particularly by injection, a part (31) from a composite material comprising at least one fibrous preform (5) made of a polymer-based composite material, comprising: - a mould (2) for shaping and/or adding polymer material, comprising first and second parts (3, 4) which are movable relative to each other to enable the mould (2) to be opened or closed, - a heating device (13) configured to heat or keep, at a predetermined temperature, at least one portion of the fibrous preform (5) in place in the open mould (2), the heating device (13) being independent of or removable from the mould (2).

IPC Classes  ?

• B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
• B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
• B29C 51/42 - Heating or cooling
• B29C 31/04 - Feeding, e.g. into a mould cavity
• B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• B29C 45/73 - Heating or cooling of the mould
• B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
• B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
• B29C 70/74 - Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
• B29C 70/78 - Moulding material on one side only of the preformed part
• B29B 13/02 - Conditioning or physical treatment of the material to be shaped by heating
• B29C 31/08 - Feeding, e.g. into a mould cavity of preforms
• B29C 43/34 - Feeding the material to the mould or the compression means
• B29C 43/52 - Heating or cooling
• B29C 70/22 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
• B29C 45/72 - Heating or cooling
• B29C 51/26 - Component parts, details or accessoriesAuxiliary operations
• B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
• B29K 23/00 - Use of polyalkenes as moulding material
• B29K 69/00 - Use of polycarbonates as moulding material
• B29K 67/00 - Use of polyesters as moulding material
• B29K 77/00 - Use of polyamides, e.g. polyesteramides, as moulding material
• B29K 71/00 - Use of polyethers as moulding material
• B29K 79/00 - Use of other polymers having nitrogen, with or without oxygen or carbon only, in the main chain, as moulding material
• B29K 81/00 - Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
• B29K 55/02 - ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
• B29K 75/00 - Use of polyureas or polyurethanes as moulding material
• B29K 63/00 - Use of epoxy resins as moulding material

Abstract

The invention relates to a method for making a carbon fibre from a paper product. Said method comprises preparing a cellulose-based fibre by crushing the paper product, dissolving the crushed material obtained in an aqueous phosphoric acid solution to form a spinning solution, and forming a cellulose-based continuous fibre by means of a solvent spinning process. The cellulose fibre formed in this way is subjected to carbonisation treatment in order to form a carbon fibre.

IPC Classes  ?

• D01F 9/16 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetat
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• C08J 11/06 - Recovery or working-up of waste materials of polymers without chemical reactions
• D01F 13/02 - Recovery of starting material, waste material or solvents during the manufacture of man-made filaments or the like of cellulose, cellulose derivatives, or proteins

Abstract

A method for inspecting a composite-material component having a plurality of plies (2), having undergone forming and having at least one edge (3) extending along a longitudinal axis and having, following the forming, a stepped profile in a plane orthogonal to the longitudinal axis, the method comprising the following steps: a) acquiring data relating to the stepped profile; b) calculating, from the acquired data, at least one value at at least one point of the longitudinal axis, and possibly calculating at least one criterion based on at least one of these values; c) comparing the calculated value/values and/or criterion/criteria and/or one or more average value/values or average criterion/criteria at a plurality of points with corresponding calculated reference values or criteria; d) generating information about the risk of the presence or absence of defects in the component on the basis of said comparison.

IPC Classes  ?

• G01B 11/24 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
• G01B 21/20 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile

Abstract

Method for manufacturing a fibre preform comprising a number of plies greater than or equal to two, comprising the following steps: • a) heating a ply (6), • b) depositing the ply (6) on a preforming mould (M), • c) forming the ply (6), the ply (6) then forming an intermediate preform (5), • d) heating a new ply (6), • e) depositing the new heated ply on the intermediate preform (5), • f) forming the new ply (6) in order to form a new intermediate preform, • g) where applicable, repeating steps d) to f) at least once, the intermediate preform (5) being replaced in these steps by the new intermediate preform in order to produce the fibre preform with said number of plies.

IPC Classes  ?

• B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements

Abstract

Some embodiments are directed to a system for measuring vibrations of a surface of a mechanical part, by digital holography. The system includes a source of radiation emitting in a predetermined range of frequencies, a first separator element configured to define a first incident ray and a reference ray, a module for shaping a second incident ray from the first incident ray, and an optical element configured to make the reference ray and a radiation produced by a reflection of the incident ray on the surface of the mechanical part interfere. The module for shaping the second incident ray includes diffracting optical elements having a diffraction structure to diffract the incident radiation. The structure is from a polymer, sol-gel or photoresin material resting against a glass substrate, the structure including elements etched in a plane parallel and/or orthogonal to the substrate, with dimensions from 100 nanometres to 100 micrometres.

IPC Classes  ?

• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
• G03H 1/04 - Processes or apparatus for producing holograms
• G03H 1/00 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto

Abstract

a connecting system for removably fixing the cassette to a laying head part, itself adapted to be connected to a laying up robot.

IPC Classes  ?

• B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns

Abstract

The invention relates to a carbon fibre prepared from cellulose, which has good tensile mechanical properties, in particular a Young's modulus greater than or equal to 85 GPa and a breaking stress greater than or equal to 1800 MPa, and also a hydrostatic density of between 1.3 and 1.65 g/m3. A process for preparing such a fibre comprises heat treatment of said fibre at a moderate temperature not exceeding 1500°C, at the same time as considerable stretching of said fibre.

IPC Classes  ?

• D01F 9/16 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetat
• D01F 11/02 - Chemical after-treatment of man-made filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material

Abstract

The method comprises the following consecutive steps: - providing at least one reinforcement layer (17) and at least one matrix sheet (18) made of thermoplastic material; - forming a complex with said reinforcement layer (17) and said matrix sheet (18); and - placing the complex in a production tool (28) so that the thermoplastic material impregnates the fibres of the reinforcement layer(s) (17) in order to form a prepreg. The method comprises, in the production tool (28), the following consecutive steps: - heating the complex to a temperature higher than the melting temperature of the thermoplastic material without applying pressure; - heating the complex to a temperature higher than the melting temperature of the thermoplastic material while applying a production pressure higher than atmospheric pressure.

IPC Classes  ?

• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs

Abstract

The invention concerns a method for producing a carbon fibre, that comprises a step of preparing a continuous fibre made of cellulose from cotton fabrics, by extracting, from these fabrics, cotton in the form of short, discontinuous fibres, and implementing a solvent spinning process; this step being followed by a step of carbonising said obtained continuous fibre made from cellulose, in order to form a carbon fibre. This carbon fibre can be used, in particular, for producing articles made from composite material made from carbon fibres and polymer organic resin.

IPC Classes  ?

• D01F 9/16 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetat
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material

Abstract

A method for controlling the operation of a robot within a system. The system includes the robot and sensors to analyze the concentric environment of the system. The sensors include a contact sensor, a proximity sensor and a vision and location sensor. For each of the axes of the robot, a maximum allowable force value is obtained. If the force on one of the axes of the robot is greater than the maximum value, the robot is stopped in its position. A concentric monitoring space or a security space is obtained as a function of the speed of the robot. The environment of the robot is monitored by the sensors. If the intrusion of an object is detected in the safe space of the robot, the maneuvering speed of the robot is gradually decreased to a safe speed. The process is repeated for the next axis of the robot.

IPC Classes  ?

• B25J 9/16 - Programme controls

Abstract

The invention concerns a system for measuring vibrations of a surface of a mechanical part, comprising a source of radiation emitting in a predetermined frequency range, a first separator element configured to define a first incident ray and a reference ray, a shaping module of a second incident ray from said first incident ray, and an optical element capable of an addition of the reference ray and a ray produced by a reflection of said second incident ray on said surface of said structure, the shaping module of the second incident ray comprising one or more diffracting optical elements, each comprising at least one diffraction structure configured to diffract all or part of the first incident ray so as to illuminate the surface of the mechanical part.

IPC Classes  ?

• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
• G03H 1/00 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto
• G03H 1/04 - Processes or apparatus for producing holograms
• G03H 1/30 - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique discrete holograms only

Abstract

A system for measuring vibrations of a surface (VSURF) of a mechanical part (M), comprising a source (SOURCE) of radiation (L), a first separator element (ELI) configured to define a first incident ray (LB1) and a reference ray (RLB), a shaping module (DOEM) producing a second incident ray (LB2) from said first incident ray (LB1), and an optical element (OE) capable of an interferential addition of the reference ray (RLB) and a ray produced by a reflection of said second incident ray (LB2) on said surface (VSURF), the shaping module (DOEM) comprising one or more diffracting optical elements (DOE1,..., DOEn), each comprising at least one diffraction structure (FSTRUCT) diffracting all or part of the first incident ray (LB1) so as to illuminate a chosen surface of the mechanical part.

IPC Classes  ?

• G03H 1/00 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto
• G03H 1/04 - Processes or apparatus for producing holograms
• G01H 9/00 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
• G03H 1/30 - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique discrete holograms only

Abstract

Mobile platform (30) intended to equip a cable-controlled parallel robot (20), characterized in that the platform (30) is configured to carry at least one reel of a fabric (34) made of a composite material and allow said at least one reel to be unwound so as to create a layup of a preform, notably a dry layup, by controlled movement of the platform (30) over a layup line (7).

IPC Classes  ?

• B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
• B25J 9/00 - Programme-controlled manipulators

Abstract

The invention relates to a formulation for melt-preparation of lignin-based fibres, which are precursors of carbon fibres. Said formulation comprises lignin, a plasticiser and a cross-linking agent capable of cross-linking with the lignin at a temperature at least 10° C higher than the glass-transition temperature of the intimate blend of the lignin and the plasticiser. A method for preparing lignin-based fibres using this formulation comprises the hot extrusion spinning of an intimate blend of the components of the formulation, under adequate conditions for cross-linking the cross-linking agent and the lignin in the terminal area of the extrusion device used.

IPC Classes  ?

• D01D 5/38 - Formation of filaments, threads, or the like during polymerisation
• D01F 1/10 - Other agents for modifying properties
• C08L 97/00 - Compositions of lignin-containing materials
• D01F 9/00 - Man-made filaments or the like of other substancesManufacture thereofApparatus specially adapted for the manufacture of carbon filaments
• D01F 9/17 - Carbon filamentsApparatus specially adapted for the manufacture thereof by decomposition of organic filaments from products of vegetable origin or derivatives thereof, e.g. from cellulose acetat from lignin
• D01F 6/54 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated nitriles

Abstract

A cable robot comprises a platform supporting an effector and cables. Each cable is connected on one end to an attachment point on the platform and extends from this attachment point to an anchoring point attached to a supporting structure. The anchoring points being contained in more than one plane. The cables include a set of driving cables whose ends are connected to a winch. The cables include a set of reconfigurable cables, whose anchoring points are movable relative to the supporting structure. The supporting structure is beared by a set of independent mobile bases having anchorings to fix the mobile bases to the ground.

IPC Classes  ?

• B25J 9/16 - Programme controls
• B25J 9/00 - Programme-controlled manipulators
• B25J 11/00 - Manipulators not otherwise provided for
• B25J 5/00 - Manipulators mounted on wheels or on carriages

Abstract

Cassette (1) of at least one fibrous reinforcement wound in at least one reel (B) of fabric (T) for creating a lay-up, comprising:• – a receiving structure (2) arranged to receive said at least one reel (B) and allow it to be unwound, • – a connecting system (4) for removably attaching the cassette (1) to a part of a laying head (40), itself able to be connected to a lay-up robot (110).

IPC Classes  ?

• B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns

Abstract

A method for producing a part made of a composite material having an organic matrix and a fibrous reinforcement, the method comprising the following steps: a) automatically draping, either in a planar arrangement or shaped over a three-dimensional cavity, at least one lamination (30, 31) comprising at least a first and second different dry plies, at least partially stacked to form a dry, planar or three-dimensional preform, each ply being fibrous and the plies mutually differing in terms of their structure, their positioning on the preform, the fibres composing them and/or the geometry of the ply, wherein at least one ply is laid in a non-woven form and has a plurality of unidirectional fibre layers laid on top of each other with a different angular orientation of the fibres, and/or at least one ply is woven; b) thermoforming the preform, the thermoforming step taking place, when the preform has been draped in a planar arrangement in step a), in a three-dimensional cavity of a first mould to impart a three-dimensional shape thereto; and c) impregnating, with at least one polymer, the preform thus thermoformed inside a mould, the preform being moved, if it is draped in a planar arrangement in step a), from the first thermoforming mould to a second mould for the impregnation step.

IPC Classes  ?

• B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
• B29C 70/38 - Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
• B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
• B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
• B62D 1/16 - Steering columns

Abstract

An assembly includes a first part made of composite material including a polymer matrix and a second part made of metal. The two parts are assembled by opposite or assembly faces along an interface subjected to shear loads. The first part is made of a composite having continuous reinforcing fibers in a thermoplastic matrix. The second part includes, on its assembly face, a coupling form having a plurality of patterns. Each pattern has a closed contour in a plane parallel to the assembly face of the second part and extends along a direction normal to the assembly face of the second part. A method for making such an assembly is also provided.

IPC Classes  ?

• B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
• B29C 65/64 - Joining a non-plastics element to a plastics element, e.g. by force
• B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure
• B29C 65/50 - Joining of preformed partsApparatus therefor using adhesives using adhesive tape
• B29C 65/70 - Joining of preformed partsApparatus therefor by moulding
• B29C 65/72 - Joining of preformed partsApparatus therefor by combined operations, e.g. welding and stitching
• B29C 65/00 - Joining of preformed partsApparatus therefor
• B60N 2/22 - Seats specially adapted for vehiclesArrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
• B29L 31/30 - Vehicles, e.g. ships or aircraft, or body parts thereof
• B29L 31/00 - Other particular articles

Abstract

The invention concerns a method for controlling the operation of a robot within a system comprising said robot (100) and means for analysing the concentric environment of same comprising: i. a contact sensor; ii. a proximity sensor; iii. a vision and location sensor; characterised in that it comprises the steps consisting of: a. obtaining, for each of the axes of the robot, a maximum allowable force value; b. if the force on one of the axes of the robot is greater than the maximum value acquired in step a) (310), stopping (311) the robot in the position of same; c. obtaining a concentric monitoring space, referred to as the safe space, the area of which depends on the speed of the robot; d. monitoring the environment of the robot, by the analysis means; e. if the intrusion of an object is detected (320) in the safe space of the robot, gradually decreasing (330) the manoeuvring speed to a speed referred to as the safe speed; f. repeating step a).

IPC Classes  ?

• B25J 9/16 - Programme controls

Abstract

The present invention relates to a process for treating a substrate at the surface, said process comprising: (i) providing at least one cathode comprising at least nickel in a vacuum chamber; (ii) placing a substrate in the vacuum chamber so as to present a surface suitable for undergoing a surface treatment; (iii) treating the surface of the substrate by exposing at least one portion of the surface to a plasma comprising at least nickel ions in said vacuum chamber that is generated by high-power impulse magnetron sputtering (HiPIMS) at the cathode; and (iv) optionally depositing at least nickel by magnetron sputtering in high-power impulse regime (HiPIMS) or optionally in direct current regime (DC) on a portion of the surface of the substrate, said deposition forming one or more continuous layers on the surface of the substrate.

IPC Classes  ?

• C23C 14/16 - Metallic material, boron or silicon on metallic substrates or on substrates of boron or silicon
• C23C 14/02 - Pretreatment of the material to be coated
• C23C 14/34 - Sputtering
• C23C 14/48 - Ion implantation
• C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering

Abstract

The invention relates to a method for producing a composite part (100) having continuous fibre reinforcement from a dry preform, said method comprising: a. flat lay-up of a first layering (311, 312) of deformable dry plies, b. positioning, on said first layering, a thermoformable core (200) that extends onto a portion of the surface of the first layering, c. lay-up of a second layering (321, 322) of deformable dry plies, extending above the core and up to the first layering, d. stitching (410, 420, 430) along a defined contour, said stitching connecting and extending between the second and the first layerings, e. placing the preform obtained at the end of step d) into the three-dimensional cavity of a mold (600), f. impregnating the dry preform with a polymer, comprising between step d) and step g) a step consisting of: j. thermoforming the preform comprising the core (200) into the shape of the part.

IPC Classes  ?

• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
• B29B 11/16 - Making preforms characterised by structure or composition comprising fillers or reinforcements
• B32B 7/08 - Interconnection of layers by mechanical means
• B29C 70/16 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length

Abstract

The invention relates to a robot able to move in a defined environment, such as a section of aircraft fuselage, the robot being equipped with a plurality of sensors comprising: • two monocular digital video cameras; • a vision device including a lighting unit and an imaging unit; • a LiDAR system mounted on a panoramic platform; • processing and controlling means comprising a computer and storage means including a map of the environment, the means being able to acquire information from the sensors and comprising in memory the three-dimensional characteristics of all the objects liable to be found in the environment.

IPC Classes  ?

• G05D 1/02 - Control of position or course in two dimensions

Abstract

The invention concerns a device for constituting a tangible interface, in particular for reproducing the environment of an aircraft fuselage, suitable for being installed on a so-called base plane support (100), characterised in that it comprises: a. two legs (101, 102) extending in the base plane (100) in a so-called transverse direction (111), suitable for being deployed in an extension direction comprising the direction normal to the base plane, said legs comprising an attachment end (131, 132) suitable for being attached in the base plane and a support end (140), that can be deployed relative to the attachment end, said support end being suitable for carrying an accessory; b. actuating means (150) acting on each leg (101, 102) to control the deployment of said leg, said actuating means acting on said leg in a direction parallel to the transverse direction.

IPC Classes  ?

• G09B 9/00 - Simulators for teaching or training purposes
• G09B 25/00 - Models for purposes not provided for in group , e.g. full-sized devices for demonstration purposes
• B66F 7/06 - Lifting frames, e.g. for lifting vehiclesPlatform lifts with platforms supported by levers for vertical movement

Abstract

The invention relates to an assembly (100), and to a method for producing such an assembly (100), which includes a first part (100)consisting of a polymer matrix composite material, and a second metal part (120) which are assembled along so-called "assembly" surfaces that face one another on a shear-biased interface. Said assembly is characterized in that: i. the first part (110) consists of a composite including continuous reinforcement fibers in a thermoplastic matrix; and ii. the second part (120) comprises, on the assembly surface thereof, a coupling shape including a plurality of patterns (124). Each pattern has a contour that is contained within a plane parallel to the assembly surface (123) of said part and extends in a direction normal to said assembly surface.

IPC Classes  ?

• B29C 65/64 - Joining a non-plastics element to a plastics element, e.g. by force
• B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives

Abstract

The invention relates to a robot, termed a cobot (100), in particular with mobile base (110) comprising: a. memory means in which is recorded an invariant map of the space in which said cobot (100) is able to move; b. sensors (141, 142) on board said cobot and able to advise it as to its concentric environment; c. means (150) of communication able to transmit and receive information; d. calculation means able to process the information originating from the sensors and communication means (150); e. a means (190) of exploring the environment, termed a codrone, detached from the cobot, able to move in the space by its own means and to communicate information to the cobot via the communication means (150). The invention also relates to a robotic system comprising a plurality of cobots and a method of updating the working map of the cobots of said robotic system.

IPC Classes  ?

• B25J 9/16 - Programme controls
• G05D 1/02 - Control of position or course in two dimensions

Abstract

The invention relates to a method for manufacturing a part, which implements the melting and the solidification of a semi-crystalline thermoplastic polymer, the degree of crystallinity of the resulting part being determined for an intended use, wherein said method is characterised in that it includes the following steps: i. determining (410) in the form of a mathematical formula the isothermal crystallisation kinetics of the polymer; ii. using the equation obtained in step i) to simulate (420) the behaviour of the polymer during the implementation of the manufacturing method; iii. determining (430) by the simulation of step ii) the conditions for implementing the manufacturing method in order to obtain the intended degree of crystallinity; and iv. manufacturing (440) the part by implementing the manufacturing method with the conditions determined in step iii).

IPC Classes  ?

• G01N 25/48 - Investigating or analysing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation