The present invention relates to a method for joining a first blank and a second blank, wherein at least one of the first and second blanks comprises at least a layer of aluminum or an aluminum alloy. In particular, the method comprises placing the first and second blanks for welding; laser welding the first and second blanks following a welding path thus forming a tailor welded blank, wherein the welding path combines a linear movement along a welding direction and oscillating movements substantially transverse to the welding direction and then hot deforming and quenching the tailor welded blank to form a component, wherein the welding is done without using a filler.
Examples of methods of hot forming structural components are provided. The methods include heating a blank made from an Ultra High Strength Steel with an aluminum coating and forming the heated blank in a multi-step apparatus.
A battery box floor (1) for electric vehicles for being arranged at the lower part of a vehicle body (100). The battery box floor (1) comprises a battery pack supporting panel (2) for supporting a plurality of battery cells (102), a plurality of lower cooling channels (4) for containing a cooling fluid, a plurality of lower cooling channels (4) being arranged adjacent to and below the battery pack supporting panel (2) such that they can cool the battery cells (102) and an underbody protection (6) arranged below the lower cooling channels (4). The battery box floor (1) further comprises a deformation inner cavity (8) between said plurality of lower cooling channels and said underbody protection (6). Additionally, the battery box floor (1) is integrally formed from a metallic material. Also a vehicle body comprising the battery box floor (1) is disclosed.
A method for manufacturing a steel component from a blank is provided. Firstly,a blank is placed in a conveyor system. Then, at least a preselected zone of the blank is preheated while the blank is retained at a predetermined preheating location. Finally,the blank is conveyed through a furnace.A preheating system for heating blanks in a production line is also provided.
F27B 9/24 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path being carried by a conveyor
B21D 22/02 - Stamping using rigid devices or tools
A method for manufacturing structural steel components with local reinforcement is provided. The method comprises selecting at least a zone of the component to be reinforced, providing a steel blank and deforming the blank in a press tool to form a product, wherein the blank and/or the product comprises a groove in the zone to be reinforced, the groove comprising an inner surface and an outer surface. The method further comprises depositing a reinforcement material on the inner surface of groove and locally heating the reinforcement material and the groove of the steel blank or product, to mix the melted reinforcement material with the melted portion of the steel blank or product.
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
B23K 26/34 - Laser welding for purposes other than joining
B61D 17/00 - Construction details of vehicle bodies
C23C 26/02 - Coating not provided for in groups applying molten material to the substrate
B23K 26/144 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beamNozzles therefor the fluid stream containing particles, e.g. powder
Centering systems for centering blanks outputted from a furnace in a hot stamping line are provided, the centering system comprising a centering table and a heating system for heating one or more selected zones of the blank while arranged on the centering table. Also provided are methods for manufacturing steel components having hard zones and soft zones, wherein the soft zones are of less mechanical strength than the hard zones. The methods comprise heating a steel blank in a furnace, centering the heated blank on a centering table arranged downstream from the furnace, heating one or more selected zones of the heated blank while the blank is on the centering table, wherein the selected zones are the zones of the blank which are destined to form the hard zones; transferring the blank to a press tool to hot forming the blank, and quenching the selected zones of the blank destined to form the hard zones.
A conveyor unit for moving products in a conveying direction is disclosed. The unit comprises first beams extending along the conveying direction substantially parallel to each other. The first beams are slidably mounted on rollers and are displaceable in a back-and-forth reciprocating motion along the conveying direction between an upstream position and a downstream position. The unit further comprises second beams extending along the conveying direction and arranged interleaved with the first beams. The second beams are configured to be displaceable in an up-and-down reciprocating motion between a lower vertical position and an upper vertical position along a vertical direction that is defined in a plane substantially perpendicular to a plane of the conveying direction, wherein an upper working surface of the first beams is positioned along the vertical direction, between the lower vertical position and the upper vertical position.
F27B 9/20 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
F27D 3/12 - Travelling or movable supports or containers for the charge
8.
METHODS FOR JOINING TWO BLANKS AND BLANKS AND PRODUCTS OBTAINED
Methods for joining a first blank (A) and a second blank (B), at least one of the first and second blanks comprising at least a layer of aluminum or of an aluminum alloy or a layer of zinc or of a zinc alloy. The method comprises selecting a first portion of the first blank to be joined to the second blank, and selecting a second portion of the second blank to be joined to the first portion, and welding the first portion to the second portion. The welding comprises using a filler metal laser beam (LI) and a welding laser beam (L2), and displacing both laser beams in a welding direction to melt and mix a filler wire (25) material with the melted portions of the two blanks. The present disclosure further relates to blanks obtained by any of these methods and to products obtained from such blanks.
A method for manufacturing reinforced steel structural components is described. The method comprises providing a steel blank, selecting one or more reinforcement zones of the steel blank, locally depositing a material on the reinforcement zone to create a local reinforcement on a first side of the steel blank. Locally depositing a material on the reinforcement zone comprises supplying a reinforcement material to the selected reinforcement zone, and substantially simultaneously applying laser heating to melt the reinforcement material and a portion of the steel blank to mix the melted reinforcement material with the melted portion of the steel blank. The method further comprises forming the steel blank with the locally deposited material to shape the reinforced steel structural component. The disclosure further relates to reinforced components obtained using such methods and tools used in such methods.
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
B62D 25/00 - Superstructure sub-unitsParts or details thereof not otherwise provided for
B21D 22/02 - Stamping using rigid devices or tools
B23K 9/16 - Arc welding or cutting making use of shielding gas
B23K 26/34 - Laser welding for purposes other than joining
10.
B-PILLAR CENTRAL BEAM AND METHOD FOR MANUFACTURING
In a first aspect, a B-pillar central beammade of steelwhich compriseshard zones and soft zones. Such soft zones have less mechanical strength than the hard zones. The B-pillar central beam further comprisesan upper region with a fastening portion for fastening to a roof member, and a lower region with a fastening portion for fastening to a sill member. The B-pillarcentral beamincludestwo soft zones. A lower soft zone islocatedbetween the lower fastening portion and 50%of the B-pillar central beam height, and an upper soft zone is locatedbetween the upper fastening portion and 50% of the B- pillar central beam height. The upper soft zone has higher mechanical strength than the lower soft zone. Methods for manufacturing such B-pillar central beamare also provided.
Structural beam which comprises a first beam and a cover plate to be attached to the first beam. The first beam has a substantially U-shaped cross-section along at least a first portion of its length. The U-shape comprises a bottom wall, two sidewalls, a lateral flange at an end of at least one of the two sidewalls, and a groove in the junction between the sidewall and the lateral flange. The groove has a substantially flat first joining region at or near the bottom of the groove. The cover plate of the structural beam has a substantially flat second joining region welded to a first joining region. Methods for manufacturing such beams are also provided.
A structural beam which comprises a first beam and a reinforcement to be attached to it. The first beam has a substantially U-shaped cross-section along at least a first portion of its length and comprises a bottom wall and two sidewalls wherein the bottom wall comprises a substantially flat first joining region. The reinforcement of the structural beam has a substantially flat second joining region which may be welded to a first joining region. Both parts of the structure are made of hardened UHSS. Methods for manufacturing such beams are also provided.
Methods and tools for manufacturing reinforced structural components are described. The methods comprise providing a structural component having a steel substrate (15) and a metal coating layer (15). The method further comprises selecting a reinforcement zone of the structural component, guiding a first laser beam (30) to ablate at least a part of the coating layer of the reinforcement zone, locally depositing a reinforcement material on the ablated reinforcement zone to create a local reinforcement on a first side of the structural component, wherein locally depositing a material on the reinforcement zone comprises supplying a reinforcement material (45) to the ablated reinforcement zone, and substantially simultaneously applying laser heating using a second laser beam (35) to melt the reinforcement material and part of the steel substrate of the ablated reinforcement zone to mix the melted reinforcement material with the melted part of the steel substrate. The disclosure further relates to reinforced components obtained using such methods.
B23K 26/03 - Observing, e.g. monitoring, the workpiece
B23K 26/06 - Shaping the laser beam, e.g. by masks or multi-focusing
B23K 26/067 - Dividing the beam into multiple beams, e.g. multi-focusing
B23K 26/14 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beamNozzles therefor
B23K 26/34 - Laser welding for purposes other than joining
B23K 26/144 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beamNozzles therefor the fluid stream containing particles, e.g. powder
A method for manufacturing reinforced steel structural components is described. The method comprises providing a previously formed steel structural component, selecting one or more reinforcement zones of the previously formed structural component, and locally depositing a material on the reinforcement zone to create a local reinforcement on a first side of the structural component. Locally depositing a material on the reinforcement zone comprises supplying a metal filler material to the reinforcement zone, and substantially simultaneously applying laser heat to melt the metal filler material and create the reinforcement by drawing specific geometric shapes on the first side of the structural component with the metal filler material and the laser heating. And the method further comprises providing cooling to areas on an opposite side of the structural component. The disclosure further relates to a tool for manufacturing reinforced steel structural components and to the components obtained using such methods.
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
B23K 26/34 - Laser welding for purposes other than joining
B23K 26/144 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beamNozzles therefor the fluid stream containing particles, e.g. powder
A rocker (2) of a vehicle, the vehicle and the rocker(2) comprising a main elongation axis, a width axis (Y) and a height axis (Z), a lower portion and an upper portion, the rocker(2) further comprising a central core (3) comprising a length along the main elongation axis and a height along the height axis (Z); two hollow units (4, 5) extending along the length and on one side and the other of the central core (3), such that one of the units(4) is closer to the outside of the vehicle (1) than the other unit (5), and a cross-section of the units in the main elongation axis, forms a closed polygon on the length of the central core (3); and two flanges (6) projecting from the lower and upper portions of the rocker (2).
Press systems for manufacturing hot formed structural components may be provided. The systems comprise a fixed lower body (2), a mobile upper body (3) and a mechanism configured to provide upwards and downwards press progression of the mobile upper body (3) with respect to the fixed lower body (2). The system further comprises a cooling / heating tool (10) configured to cool down and / or heat a previously heated blank having locally different microstructures and mechanical properties which comprises: upper (11) and lower (12) mating dies, and the upper (11) and lower (12) dies comprising two or more die blocks adapted to operate at different temperatures corresponding to zones of the blank having locally different microstructures and mechanical properties, and a press tool (20) configured to draw the blank, wherein the press tool (20) is arranged downstream the cooling / heating tool (10). Moreover, methods for hot forming structural components are also provided.
A tool for manufacturing hot formed structural components having locally different microstructures and mechanical properties, the tool comprising upper and lower mating dies, each die being formed by two or more die blocks (10) comprising one or more working surfaces (34) that in use face the structural component to be formed and one or more supporting blocks, the upper and lower dies comprising die blocks are adapted to operate at different temperatures corresponding to zones of the structural component to be formed having locally different microstructures and mechanical properties, the die blocks including one or more warm die blocks adapted to operate at a higher temperature, and one or more cold die blocks adapted to operate at a lower temperature, and wherein at least one of the warm die blocks is an electrically conductive die block which is electrically connected to a current source configured to provide a DC current through the die block to control the temperature of the die block. Furthermore, a method for manufacturing hot formed structural components is also provided.
A vehicle door for use in a vehicle body comprising a rocker (20) is described. The vehicle door comprises an inner door panel (11) and an outer door panel (13), wherein the door further comprises a reinforcement element (12) arranged in a lower portion of the door such that when the door is mounted in the vehicle body, the reinforcement element (12) is at the height of the rocker (20) and such that when a side impact is received by the door the reinforcement element with the inner door panel is supported by the vehicle rocker. The reinforcement element (12) is a U-shaped bracket that extends from the inner door panel (11) to the outer door panel (13), the U-shaped bracket (12) being arranged with an open side facing the inner panel. The disclosure further relates to a vehicle having a vehicle body that comprises a rocker and such a door.
Vehicle beams (1) are disclosed, the beams comprising a main elongation direction oriented along a central axis (a) and that is formed by a first material such that it comprises a higher strength zone (2) formed by the first material, the beam (1) comprising an enlarged portion (7) on which at least one dimension perpendicular to the axis (a) is increased relative to the rest of the beam. The beams include a lower strength zone (3) formed by a second material and that is located on said enlarged portion (7), the second material having a lower strength against intrinsic mechanical stresses than that of the first material; and the zones being located successively along the axis (a). Methods of manufacturing are also disclosed.
B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
F16F 7/12 - Vibration-dampersShock-absorbers using plastic deformation of members
Method for joining a first and a second steel blanks, at least one of the blanks comprising aluminium. The method comprises providing a support being made of a magnetic material for each blank, the supports being arranged distanced apart by a central space; providing a coil winding around one support, arranging the first blank on one support and the second blank on the other support, such that a butt end of the first blank that is facing the second blank is brought into contact with a butt end of the second blank that is facing the first blank defining a contacting area that closes a path for magnetic flux. The method further comprises applying a laser beam onto the contacting area, while applying an alternating current to the coil winding, wherein an alternating magnetic field is created across the contacting area in a direction substantially in-line with the blanks.
B23K 26/32 - Bonding taking account of the properties of the material involved
B23K 37/04 - Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
B23K 26/322 - Bonding taking account of the properties of the material involved involving coated metal parts
21.
METHOD FOR LASER BEAM HEAT TREATMENT OF PRESS HARDENED COMPONENTS AND PRESS HARDENED COMPONENTS
Methods for manufacturing hot-stamped components are described. The method comprises providing a hot-stamped component by hot forming dye quenching. Selecting a first and a second portion of the hot-stamped component, wherein the first portion has a different width than the second portion. A laser system, wherein the laser system comprises one or more optical elements and a laser source for generating a laser beam is provided. The laser system is moved along a length of the component. Finally, the laser beam is applied in a single pass onto the selected first and second portions using the laser system, wherein a laser beam spot size is adjusted during the application of the laser beam and is adapted to the widths of the first and second portions, and wherein a power of the laser beam is regulated based on the temperature measured in the hot-stamped component. The disclosure further relates to components obtained using such methods.
The invention relates to a metal piece (P) of a generally elongated shape according to a longitudinal direction (A), for making a motor vehicle, comprising at least one edge (11, 13, 21, 23) extending according to the longitudinal direction, at the intersection of two walls (10, 20, 22, 50) of the piece, and at least one area (100) having a mechanical strength lower than the rest of the body of the piece, wherein the at least one area (100) is formed through local thermal control of the piece. The piece being characterized in that the lower mechanical strength area undulates along the edge (11, 13, 21, 23) extending at least predominantly alternately on each of the walls (10, 20, 22, 50) forming said edge. The invention further relates to a method for making it.
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
B60R 19/34 - Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
A vehicle body structure in which left and right side frames (22, 22) are positioned on both sides in a vehicle-width direction. The left and right side frames have end sections (22a, 22a) on an external-force action side for receiving a collision load (fs) acting from outside the vehicle in a front-rear direction of the vehicle body, and end sections (22b, 22b) on an opposite side from the end sections on the external-force action side. A plurality of fragile sections (81, 81, 82, 82, 83, 83) are provided in each of the left and right side frames. The plurality of fragile sections comprise at least left and right first fragile sections (81, 81) positioned at the end sections on the external-force action side, and left and right second fragile sections (82, 82, 83, 83) positioned apart from the left and right first fragile sections toward the end part on the opposite side. The area (A1) of the left and right first fragile sections is larger than the areas (A2, A3) of the left and right second fragile sections.
B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
Methods for manufacturing reinforced structural components are described. The methods comprise providing a previously formed steel structural component having a thickness of 0.7 mm to 5 mm. In a reinforcement zone of the structural component, locally depositing a material on the structural component to create a local reinforcement with a minimum thickness of 0.2 mm, wherein locally depositing a material on the structural component comprises supplying a metal powder to the reinforcement zone, and substantially simultaneously applying laser heat to melt the metal powder and create the reinforcement by drawing specific geometric shapes on the structural component with the metal powder and the laser heating. The disclosure further relates to a reinforced component obtained using such methods.
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
B23K 26/14 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beamNozzles therefor
A tool for hot forming die quenching boron steel structural components having locally different microstructures and mechanical properties is described. The tool comprises upper and lower mating dies, each die being formed by two or more die blocks comprising a working surface that in use faces the structural component to be formed and side faces. The upper and lower dies comprise at least two neighbouring die blocks adapted to operate at different temperatures corresponding to zones of the structural component to be formed having locally different microstructures and mechanical properties, wherein the neighbouring die blocks are arranged with a gap between their side faces and end portions of the side faces of the neighbouring die blocks that are close to the working surface are designed such that in use they are in contact.
Methods for joining a first blank and a second blank,wherein the first blank and the second blank comprises a steel substrate with a coating comprising a layer of aluminum or an aluminum alloy. The method comprises selecting a first portion of the first blank to be joined to the second blank, and selecting a second portion of the second blank to be joined to the first portion,and welding the first portion to the second portion. The welding comprises using a laser beam and an arc welding torch, where in the arc welding torch comprises a wire electrode, wherein the wire electrode is made of a steel alloy comprising gammagenic elements, optionally a stainless steel alloy comprising gammagenic elements and displacing both the laser beam and the arc welding torch in a welding direction, and wherein in the welding direction, the arc welding torch is positioned in front of the laser beam.
B23K 9/173 - Arc welding or cutting making use of shielding gas and of consumable electrode
B23K 26/14 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beamNozzles therefor
B23K 28/02 - Combined welding or cutting procedures or apparatus
The present disclosure relates to bumper beams having a closed cross- section, the closed cross-section being formed by one or more metal plates. The metal plates comprise a plurality of holes and a plurality of projections, wherein the projections engage with corresponding holes to retain the closed cross-section. The present disclosure further relates to rocker panels having a closed cross-section, the closed cross-section being formed by one or more metal plates, and the metal plates comprising a plurality of holes and a plurality of projections, wherein the projections engage with corresponding holes to retain the closed cross-section. The present disclosure further relates to methods of manufacturing such bumper reinforcing members and rocker panels.
B21D 39/03 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of sheet metal otherwise than by folding
B21D 53/88 - Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
B60R 19/18 - Means within the bumper to absorb impact
The present invention relates to a motor vehicle bodywork beam having a longitudinal direction and comprising: a main reinforcement having a bottom, two walls making an angle of between 80° and 120° with said bottom, and two substantially parallel to the bottom and inclined with respect to the bottom by a maximum angle of 10°; at least one secondary reinforcement having a bottom and at least one wall forming an angle of between 80° and 120° with the bottom, said at least one secondary reinforcement being secured to the main reinforcement; characterized in that: the main reinforcement and at least one secondary reinforcement are secured at each wall; at least one of the walls and/or bottom of the main reinforcement and/or of the secondary reinforcement has a transition such that at least part of the bottom of the secondary reinforcement is in contact with part of the bottom of the main reinforcement; the bodywork beam comprises at least one closed cell consisting of the assembly of the main reinforcement and of a secondary reinforcement and comprising four linear segments formed by elements of the walls or of the bottoms of the main reinforcement and/or of the secondary reinforcement, at least three linear segments covering at least 50% of the corresponding dimension of the cell, so that two segments are oriented transversally to the bottom of the main reinforcement and the other two segments are substantially perpendicular to said at least two first segments at an angle of between 80° and 120°.
The invention relates to a metal beam for the production of a motor vehicle, comprising, at least on one surface, means (150, 160) for forming at least two bosses (150) when the part is bent, said bosses being brought into contact by the bending in such a way that the bending of the structural part is limited when at least portions of the facing surfaces of two adjacent bosses (150) abut against each other.
B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
30.
METHODS FOR JOINING TWO BLANKS AND BLANKS AND PRODUCTS OBTAINED
Methods for joining a first blank and a second blank are disclosed, wherein at least one of the first and second blanks comprising at least a layer of aluminum or of an aluminum alloy. Methods may comprise selecting a first portion of the first blank to be joined to the second blank, and selecting a second portion of the second blank to be joined to the first portion; welding the first portion to the second portion, while supplying a metal powder to a weld zone, wherein the first portion and the second portion of the blanks and the metal powder in the weld zone are melted during welding and the metal powder is mixed with the melted first and second portions, and wherein the metal powder is an iron based powder comprising gammagenic elements. The disclosure further relates to blanks and products obtained using such methods.
B23K 26/14 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beamNozzles therefor
B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
B23K 26/32 - Bonding taking account of the properties of the material involved
A beam comprising a first portion having a U-shaped cross-section, wherein the U-shape comprises a bottom and a first and a second side wall extending substantially perpendicular to the bottom, and wherein the first and/or the second side wall comprises a first substantially straight portion, a second substantially straight portion and a side transition zone between the first and the second substantially straight portion. The disclosure further relates to bumpers, rocker panels, side impact beams and B-pillars comprising such beams and to vehicles incorporating such components.
Beam comprising at least one first part (100) that has a main body (110) with an overall U-shape in cross section and provided with lateral flanges (140, 150) projecting outwards from the edges of the U, the main body (110) also comprising a part bottom (112) and two side plates (120, 130) which form the edges of the U, characterized in that: - the central portion of the main body (110) defines cells (114, 128, 138) that act in tension and compression, respectively, on either side of a main neutral bending axis (A-A), said cells being formed by two transition zones (125, 126, 127; 135, 136, 137) which are each located between the U-shaped element (110) and a lateral flange (140, 150); - the part bottom (112) of the main body (110) comprises at least one transition (113) formed by a curvature discontinuity; - at least one side plate (120, 130) comprises at least one transition (121, 131) formed by a curvature discontinuity.
The present invention relates to a shock absorber system for a motor vehicle comprising a primary cell (100) suitable for being deformed in the event of an impact with a first energy level and a secondary cell (200) shorter than the primary cell (100), suitable for being biased as a complement to the primary cell (100), after a first deformation phase of the primary cell (100), when the system receives an impact with a second energy level higher than the first, the secondary cell (200) being configured to orient the resultant of a force applied on a downstream structure (30) in a direction not parallel to the longitudinal axis of that downstream structure.
The present invention relates to a metal part having at least two zones (60, 62, 64) of lower mechanical strength than the body of the part, said zones being respectively arranged on either side of a longitudinal median section (PM) of said part and alternately located in locations separated longitudinally along the part, the zones (60, 62, 64) of lower mechanical strength than the body of the part being formed by local control of a work-hardening temperature in a process for work hardening the part, especially a process comprising steps consisting in heating the part to a temperature range suitable for obtaining an austenitic phase, then in work hardening this part in a work-hardening tool suitable for defining different temperatures in different zones of the work-hardened part, for example by virtue of local voids formed in the work-hardening tool or by local heating of the work-hardening tool.
B21D 35/00 - Combined processes according to methods covered by groups
B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
B62D 29/00 - Superstructures characterised by material thereof
The present invention relates to a store (2) for containing and supporting battery modules (3) for an electric vehicle. The store (2) includes a supporting structure (4) which is coupled to the chassis (1) of the vehicle and an upper cover (5) which is mounted on the supporting structure (4), providing the store (2) with insulation. The upper cover (5) of the invention comprises a main body (6) made of plastic material and a mesh (7) made of conductive material.
The invention relates to a method for manufacturing a part of a structural component of a vehicle, that is designed to be spot-welded to a second part, starting with a coated steel plate 1-3 mm thick, that involves hot stamping the plate, then subjecting at least one predetermined and localized zone of the first part to a thermal treatment, irradiating it with a diode laser beam with a power of between 500 W and 6 kW until a temperature of between 400-900°C is reached, allowing it to cool afterwards to alter its microstructure, providing said zone with a deliberately lower martensite content and consequently with a lower elastic limit and greater elongation in comparison to that of the adjacent zones thereof that have not been treated thermally.
C21D 8/04 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
37.
ENERGY ABSORBER FOR A VEHICLE BUMPER ASSEMBLY AND PRODUCTION METHOD THEREFOR
The invention relates to an energy absorber for a vehicle bumper assembly and to the production method therefor. The absorber includes a tubular body (1) aligned with the longitudinal axis of the vehicle and having a first end (1a) to be joined to the chassis of the vehicle and a second end (1b) to be joined to a transverse bumper cross-member. Said tubular body (1) is made from a single bent metal sheet having two end edges (11, 12) defining the first and second ends (1a, 1b) and two adjacent joined side edges (13, 14) defining a longitudinal seam (2) that extends between the first and second ends (1a, 1b). The method comprises the use of a metal sheet with opposing side edges (13, 14), which is bent until said side edges (13, 14) are adjacent to one another, in order to form a tubular body (1) having first and second ends (1a, 1b) defined by the aforementioned end edges (11, 12) and to join the adjacent side edges (13, 14) defining a longitudinal seam (2).
The invention relates to an energy absorber for a vehicle bumper assembly, comprising a thrust transmitting section (1) and a deformable section (2) which are connected to one another, the respective opposing ends thereof being connected to a bumper cross-member (3) and a longitudinal member (4) of a main structure of the vehicle. The thrust transmitting section (1) includes a thrust transmitting member (5) having an elongate configuration extending along the longitudinal axis of the vehicle. The deformable section (2) includes: deformable members (6, 8) in the form of a bridge defining stacked and joined supporting configurations (6a, 8a) to which the thrust transmitting member (5) is connected; and legs (6b) which extend from said supporting configurations (6a, 8a) substantially along the longitudinal axis of the vehicle and which are connected to the longitudinal member (4), optionally by means of a flat bar (10). The energy absorber is housed inside the longitudinal member upon deformation of the deformable section (2).
The method comprises providing a piece of flat metal sheet (110); shaping said piece of flat metal sheet (110) by means of conical rolling or stamping to achieve the form of a partially formed piece (120) composed of a plate (1), a provisional hollow portion (2a) extending from said plate (1) with an axisymmetrical form about an axis (E) perpendicular to the plate (1), and an end wall (3) closing an end of said provisional hollow portion (2a) opposite the plate (1); and lengthening a section of the provisional hollow portion (2a) by means of conical or cylindrical rolling. The absorber (130) is as a single piece with a plate (1) and an elongate hollow portion (2b), which extends from the plate (1) with an axisymmetrical form. A section of the elongate hollow portion (2b) has a thickness (Gf) that is thinner than the thickness (Gi) of the plate (1).
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