The invention relates to an elongate steel structure (10) for a vehicle comprising:—first steel sheet element (11), and a second steel sheet element (12), said first and second steel sheet elements constituting opposite ends of the elongate steel structure and said first and second steel sheet elements overlapping each other in a mid-portion of said elongate steel structure, wherein the first and the second steel sheet elements have an overlapping hat profile including a central portion (17), two webs (18), and two flanges (19), wherein at least one of the first and second steel sheet elements include cut-outs (13) along the flanges (19) such that the overlap is interrupted along said flanges (19).
The invention relates to an apparatus (1) for cooling an automobile component (20) by means of a gas, the apparatus comprising a cooling box (11) with a re-closeable opening (12) for receiving an automobile component (20) to be cooled, wherein at least one heat sink (13) is provided inside the cooling box (11) for cooling of the gas, and wherein the apparatus (10) includes at least one infra sound pulsator (2, 3) arranged to provide an infra sound into said cooling box (11) to improve heat exchange of the gas both with a cooling surface of the at least one heat sink (13), and with the automobile component (20). The invention also relates to a process for cooling an automobile component in such an apparatus.
C21D 1/04 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
B06B 1/20 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of a vibrating fluid
C21D 1/09 - Surface hardening by direct application of electrical or wave energySurface hardening by particle radiation
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
C21D 9/48 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals deep-drawing sheets
F28F 3/02 - Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
F28F 13/10 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by imparting a pulsating motion to the flow, e.g. by sonic vibration
The present invention relates to a process for cooling a metal component (20), the process comprising the step of cooling said component (20) in a confined space (14), said cooling involving cooling by means of a gas, the gas being cooled by heat exchange with a cooling surface of a heat sink (22) inside said confined space (14), wherein a low frequency sound wave is provided into said confined space (14) in order to improve heat exchange both between the gas and a cooling surface of the at least one heat sink (22), and between the gas and the metal component (20), characterised in that the cooling gas comprises at least one protective inert gas. The invention further relates to an apparatus for performing the process.
C21D 1/04 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
B06B 1/00 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency
B06B 1/20 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of a vibrating fluid
C21D 1/09 - Surface hardening by direct application of electrical or wave energySurface hardening by particle radiation
C21D 1/613 - GasesLiquefied or solidified normally gaseous material
F27B 9/12 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
F27D 9/00 - Cooling of furnaces or of charges therein
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
F28F 1/00 - Tubular elementsAssemblies of tubular elements
The present invention relates to a process for forming a metal component (20), the process comprising the steps of heating a metal blank (20) coated with a protective layer; cooling said metal blank (20) in a confined space (14), said cooling involving cooling by means of a gas, the gas being cooled by heat exchange with a cooling surface of a heat sink (22) inside said confined space (14), wherein a low frequency sound wave is provided into said confined space (14) in order to improve heat exchange both between the gas and a cooling surface of the at least one heat sink (22), and between the gas and the metal component (20), wherein the heated coated blank is cooled to a temperature below the melting point of the protective layer, and forming the coated blank to a component. The invention also relates to a production line for performing the process.
C21D 1/04 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
B06B 1/00 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency
B06B 1/20 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of a vibrating fluid
C21D 1/09 - Surface hardening by direct application of electrical or wave energySurface hardening by particle radiation
C21D 1/613 - GasesLiquefied or solidified normally gaseous material
F27B 9/12 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
F27D 9/00 - Cooling of furnaces or of charges therein
F28B 1/06 - Condensers in which the steam or vapour is separated from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
F28F 1/00 - Tubular elementsAssemblies of tubular elements
G10K 1/00 - Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
C21D 1/76 - Adjusting the composition of the atmosphere
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
C22F 1/02 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
F28F 13/10 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by imparting a pulsating motion to the flow, e.g. by sonic vibration
C21D 7/13 - Modifying the physical properties of iron or steel by deformation by hot working
B21D 22/02 - Stamping using rigid devices or tools
A vehicle side structure (102; 202) comprising a side portion (104; 204) extending in a longitudinal direction (106; 206), wherein the side portion (104; 204) comprises a first member (108; 208) extending in the longitudinal direction (106; 206) and a second member (110; 210) extending in the longitudinal direction (106; 206). The first member (108; 208) is configured to face an inside (112; 212) of a vehicle, and the second member (110; 210) is configured to face an outside (114; 214) of the vehicle. The first and second members (108, 110; 208; 210) are attached to one another to form a substantially closed space (116; 216) between them. The side portion (104; 204) comprises two wave-shaped reinforcement members (118, 120; 218, 220) located in the substantially closed space (116; 216). The reinforcement members (118, 120; 218, 220) are attached to one another.
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
a) is welded together at the trim edge (15) thereof by a weld bead (20) having a length (L) which is longer that the shortest length (1) between two adjacent trigger means (13). The invention also relates to a method for producing such a crash box.
The present application relates to a reinforcement element (30) arranged to be attached to a profile (10) for forming a B-pillar for a vehicle, which profile (10) is arranged with attachment areas (22, 24) for door hinges, characterised in that the reinforcement element (30) is designed with two elongated strips (32, 34) of material, wherein the strips (32, 34) are inter-connected at least at one attachment area (22) for door hinges when the reinforcement element (30) is attached to profile (10), wherein the profile (10) is hat-shaped with a central flange (12) and two sides (14, 6), and wherein each strip (32, 34) is attached to the transition area (36, 38) between the central flange (12) and a side (14, 16).The present application also 10 relates to a B-pillar provided with the reinforcement element as well as a method of manufacturing a B-pillar with the reinforcement element.
A cold working apparatus (102; 202) for forming a blank (104), the cold working apparatus (102; 202) comprising a first die (106; 206) and a second die (108), wherein the first die (106; 206) has at least one die cavity (110; 210), and the second die (108) has at least one die protrusion (112), wherein the cold working apparatus (102; 202) is configured to, by means of the first and second dies (106, 108; 206, 108), press form the blank (104) placed between the first and second dies (106,108; 206, 108). At least one of the first and second dies (106, 108; 206, 108) has a draw radius (116; 216), wherein a member (118; 218) is attached to a die (106; 206) which has a draw radius (116; 216). At least a portion (119; 219) of the member (118; 218) is positioned adjacent to or on the draw radius (116; 216). The member (118; 218) defines a first press forming surface (120; 220), and the die (106; 206) holding the member (118; 218) defines a second press forming surface (122; 222) outside the first press forming surface (120; 220). The member (118; 218) and the die (106; 206), which holds the member (118; 218), are configured such that during the same press forming, a first friction arises between the blank (104) and the first press forming surface (120; 220) when the blank (104) is in contact with the member (118; 218) and a second friction arises between the blank (104) and the second press forming surface (122; 222) when the blank (104) is in contact with the die (106; 206) which holds the member (118; 218), the first friction being lower than the second friction. A method for cold working a blank (104)
A method for a hot press forming apparatus and a hot press forming apparatus (102; 202) for forming a blank (104), the hot press forming apparatus (102; 202) comprising a first die (106; 206) and a second die (108), wherein the first die (106; 206) has at least one die cavity (110; 210), and the second die (108) has at least one die protrusion (112), wherein the hot press forming apparatus (102; 202) is configured to, by means of the first and second dies (106, 108; 206, 108), press form the blank (104) placed between the first and second dies (106, 108; 206, 108). At least one of the first and second dies (106, 108; 206, 108) has a draw radius (116; 216), wherein a member (118; 218) is attached to a die (106; 206) which has a draw radius (116; 216). At least a portion (119; 219) of the member (118; 218) is positioned adjacent to or on the draw radius (116; 216). The member (118; 218) defines a first press forming surface (120; 220), and the die (106; 206) holding the member (118; 218) defines a second press forming surface (122; 222) outside the first press forming surface (120; 220). The member (118; 218) and the die (106; 206), which holds the member (118; 218), are configured such that during the same hot press forming, a first friction arises between the blank (104) and the first press forming surface (120; 220) when the blank (104) is in contact with the member (118; 218) and a second friction arises between the blank (104) and the second press forming surface (122; 222) when the blank (104) is in contact with the die (106; 206) which holds the member (118; 218), the first friction being lower than the second friction.
A vehicle side structure (100; 101) comprising a side portion (102; 103) extending in a longitudinal direction (104), wherein the side portion comprises a first and a second member (106, 108) extending in the longitudinal direction. The first and second members (106, 108) form a closed space (114). The side portion (102) comprises a reinforcing member (124) located in closed space (114), the reinforcement member (124) extending in the longitudinal direction. The reinforcement member (124) has a first leg (126) and a second leg (128) extending in a direction transverse to the longitudinal direction. Each leg has a foot (130, 132) extending in the longitudinal direction. The first and second legs (126, 129) are joined in a head section (134). Each leg (126, 128) is corrugated, wherein the corrugations of the first and second legs (126, 128) comprise ridges (136, 144) and grooves (138, 142) which extend from the head section (134) to the respective foot (130, 132). Each ridge (136, 144) is more prominent in the head section (134) than at the foot (130, 132).
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
11.
OVERLAPPING ELONGATE STEEL STRUCTURE AND METHOD OF PRODUCING SUCH AN ELONGATE STEEL STRUCTURE
The invention relates to an elongate steel structure (10) for a vehicle comprising:- first steel sheet element (11), and a second steel sheet element (12), said first and second steel sheet elements constituting opposite ends of the elongate steel structure and said first and second steel sheet elements overlapping each other in a mid-portion of said elongate steel structure, wherein the first and the second steel sheet elements have an overlapping hat profile including a central portion (17), two webs (18), and two flanges (19), wherein at least one of the first and second steel sheet elements include cut-outs (13) along the flanges (19) such that the overlap is interrupted along said flanges (19).
A bumper beam to be arranged horizontally on a motor vehicle, the bumper beam comprising an elongate main cross member produced of a bent plate, wherein the main cross member comprises an elongate bottom portion with two elongate web portions on either side thereof, said elongate bottom portion and elongate web portions being arranged to extend horizontally, when arranged on a vehicle, over at least a first length between two spaced apart attachment sections for attaching the bumper beam to two spaced apart mounting brackets crash boxes, and wherein the web portions are arranged above and below the bottom portion to extend outwards, away from the vehicle when arranged on said vehicle. A patch is arranged along the elongate bottom portion to cover a region that extends horizontally from each attachment section and along at least a section of the first length between two spaced apart attachment sections.
The invention relates to an apparatus (1) for cooling an automobile component (20) by means of a gas, the apparatus comprising a cooling box (11) with a re-closeable opening (12) for receiving an automobile component (20) to be cooled, wherein at least one heat sink (13) is provided inside the cooling box (11) for cooling of the gas, and wherein the apparatus (10) includes at least one infra sound pulsator (2, 3) arranged to provide an infra sound into said cooling box (11) to improve heat exchange of the gas both with a cooling surface of the at least one heat sink (13), and with the automobile component (20). The invention also relates to a process for cooling an automobile component in such an apparatus.
C21D 1/04 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
C21D 1/09 - Surface hardening by direct application of electrical or wave energySurface hardening by particle radiation
C21D 1/613 - GasesLiquefied or solidified normally gaseous material
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
B06B 1/20 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of a vibrating fluid
F28F 13/10 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by imparting a pulsating motion to the flow, e.g. by sonic vibration
A lightweight bumper beam includes an elongated U-shaped monoblock cross member provided at respective ends with an attachment portion for attachment to a body in white of a vehicle. Each attachment portion is provided with two elongated reinforcing means extending between an inner top surface of the elongated U-shaped monoblock cross member and a bracket of said attachment portion. The elongated reinforcing means being arranged at a distance relative to each other so as to form a space therebetween, and said distance being smallest at an intermediate portion of said two elongated reinforcing means.
The invention relates to a crash box (3) comprising two generally U-shaped members (11, 12) having legs (11a, 12a) and provided at respective leg with at least two adjacent trigger means (13) and an intermediate portion (14) formed between said trigger means (13). The U-shaped members (11, 12) is welded together at areas along a trim edge (15) except for the trim edge (15) formed between respective legs of respective trigger means (13) so as to form a crash box (3) having aligned trigger means (13) and intermediate portion (14). The trigger means (13) are arranged normal to crash box (3), and the intermediate portion (14) of respective leg (11a, 12a) is welded together at the trim edge (15) thereof by a weld bead (20) having a length (L) which is longer that the shortest length (l) between two adjacent trigger means (13). The invention also relates to a method for producing such a crash box.
A vehicle side structure (100; 101) comprising a side portion (102; 103) extending in a longitudinal direction (104), wherein the side portion comprises a first and a second member (106, 108) extending in the longitudinal direction. The first and second members (106, 108) form a closed space (114). The side portion (102) comprises a reinforcing member (124) located in closed space (114), the reinforcement member (124) extending in the longitudinal direction. The reinforcement member (124) has a first leg (126) and a second leg (128) extending in a direction transverse to the longitudinal direction. Each leg has a foot (130, 132) extending in the longitudinal direction. The first and second legs (126, 129) are joined in a head section (134). Each leg (126, 128) is corrugated, wherein the corrugations of the first and second legs (126, 128) comprise ridges (136, 144) and grooves (138, 142) which extend from the head section (134) to the respective foot (130, 132). Each ridge (136, 144) is more prominent in the head section (134) than at the foot (130, 132).
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
The invention relates to a bumper beam (B) comprising an elongate main cross member (1) arranged to be horizontally attached to two crash boxes (3) at attachment portions (4) close to the respective ends of the main cross member (1), the bumper beam (B) having an inner side arranged to attach to outer ends of the crash boxes (3) and an opposite outer side, wherein the main cross member (1) further comprises a mid-portion (5) between said attachment portions (4), and wherein an off-set member (2) is arranged at each attachment portion (4). The off-set members (2) comprise a proximal web (6) extending inwards from the main cross member (1), a distal web (7) extending outwards to an end rim (10) from an inner part (8) joining the proximal web (6) to the distal web (7). The distal web (7) extends on a distance from the proximal web (6) so as to form an opening between the proximal web (6) and the distal web (7), wherein a support portion (12) is arranged along the proximal web (6), which support portion (12) is arranged to face a longitudinal side of the adjacent crash box (3).
B60R 19/02 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
B60R 19/12 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section vertically spaced
B60R 19/18 - Means within the bumper to absorb impact
B60R 19/34 - Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
A bumper (B), comprising an elongated hat-shaped cross beam (1) mounted to at least two crash boxes (2) which are attached to a vehicle, said cross beam (1) having a primary contact face in the form of bent longitudinal upper and lower flanges (3,4). The bent longitudinal upper and lower flanges being arranged in the direction of the cross beam (1), and said primary contact face is facing away from the vehicle. Said bent longitudinal upper and lower flanges (3,4) have each a portion (5) with a large inner radius (R) at least at the mounting site of the cross beam (1) to respective crash box (2) compared to a small inner radius (r) of the rest of each of the bent longitudinal upper and lower flanges (3,4).
A process of producing a composite motor vehicle component, the process comprising the steps of: heating a surface treated steel part (1) to an austenite temperature so as to form austenite in said steel part; forming the steel part to a desired shape, cooling the steel part to a temperature below 500 °C, applying a patch (2) of a prepreg fibre reinforced polymer to at least a part of said steel part, pressing the applied patch (2) of fibre reinforced polymer into adhesion to steel part (1), and at least partly curing said patch inside said pressing tool.
A bumper beam (10) to be arranged horizontally on a motor vehicle, the bumper beam comprising an elongate main cross member (11) produced of a bent plate, wherein the main cross member (11) comprises an elongate bottom portion (12) with two elongate web portions (13,14) on either side thereof, said elongate bottom portion (12) and elongate web portions (13,14) being arranged to extend horizontally, when arranged on a vehicle, over at least a first length (L1) between two spaced apart attachment sections (16) for attaching the bumper beam (10) to two spaced apart mounting brackets (17) crash boxes, and wherein the web portions (13,14) are arranged above and below the bottom portion (12) to extend outwards, away from the vehicle when arranged on said vehicle. A patch (15) is arranged along the elongate bottom portion (12) to cover a region that extends horizontally from each attachment section (16) and along at least a section of the first length (L1) between two spaced apart attachment sections (16).
The invention relates to a bumper beam (B) comprising a main cross member (1) and a cross member part (2) fixedly attached to said main cross member (1). Said cross member part (2) forms in itself or together with one or more portions of the main cross member (1) a closed chamber (C) in a cross section of the bumper beam and is arranged at an upper side (11) or at a lower side (12) of said main cross member (1). Said closed chamber (C) abuts and extends over only a portion of said upper side (11) or said lower side (12) of said main cross member (1) as seen in the cross direction of said main cross member (1) and over essentially the entire length and in a longitudinal direction of said main cross member (1). Said main cross member (1) together with said cross member part (2) form a closed main chamber (M).
B60R 19/12 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section vertically spaced
The invention relates to a lightweight bumper beam (1), comprising an elongated U-shaped monoblock cross member (2) provided at respective end (3) with an attachment portion (4) for attachment to a body in white of a vehicle. Each attachment portion (4) is provided with two elongated reinforcing means extending between an inner top surface of the elongated U-shaped monoblock cross member (2) and a bracket (6) of said attachment portion (4). Said elongated reinforcing means being arranged at a distance relative to each other so as to form a space therebetween, and said distance being smallest at an intermediate portion of said two elongated reinforcing means.
A bumper beam is roll formed so that it gets a closed cross section with, along the length, constant cross section having at least two closed chambers (15, 16) separated by an essentially horizontal partition wall (14). Each chamber has a side (19), which is turned away from the vehicle, with at least one longitudinal concave portion (20, 21; 22, 23) extending along the entire length and one side (24), which is facing the vehicle, with at least one longitudinal convex portion (25, 26; 27, 28) extending along the entire length. After the roll forming, some portions (32) of the cross section are pressed together vertically or horizontally in order to adapt the deformation properties.
B60R 19/18 - Means within the bumper to absorb impact
B21B 1/08 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling work of special cross-section, e.g. angle steel
A bumper (B), comprising an elongated hat-shaped cross beam (1) mounted to at least two crash boxes (2) which are attached to a vehicle, said cross beam (1) having a primary contact face in the form of bent longitudinal upper and lower flanges (3,4). The bent longitudinal upper and lower flanges being arranged in the direction of the cross beam (1), and said primary contact face is facing away from the vehicle. Said bent longitudinal upper and lower flanges (3,4) have each a portion (5) with a large inner radius (R) at least at the mounting site of the cross beam (1) to respective crash box (2) compared to a small inner radius (r) of the rest of each of the bent longitudinal upper and lower flanges (3,4).
The invention relates to a bumper beam (B) comprising an elongate main cross member (1) arranged to be horizontally attached to two crash boxes (3) at attachment portions (4) close to the respective ends of the main cross member (1), the bumper beam (B) having an inner side arranged to attach to outer ends of the crash boxes (3) and an opposite outer side, wherein the main cross member (1) further comprises a mid-portion (5) between said attachment portions (4), and wherein an off-set member (2) is arranged at each attachment portion (4). The off-set members (2) comprise a proximal web (6) extending inwards from the main cross member (1), a distal web (7) extending outwards to an end rim (10) from an inner part (8) joining the proximal web (6) to the distal web (7). The distal web (7) extends on a distance from the proximal web (6) so as to form an opening between the proximal web (6) and the distal web (7), wherein a support portion (12) is arranged along the proximal web (6), which support portion (12) is arranged to face a longitudinal side of the adjacent crash box (3).
Methods for joining a first blank and a second blank, wherein the first blank and the second blank include a steel substrate with a coating including a layer of aluminum or an aluminum alloy. The method includes 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 includes using a laser beam and an arc welding torch, wherein the arc welding torch includes a wire electrode, wherein the wire electrode is made of a steel alloy including gammagenic elements, optionally a stainless steel alloy including 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 26/348 - Working by laser beam, e.g. welding, cutting or boring in combination with welding or cutting covered by groups , e.g. in combination with resistance welding in combination with arc heating, e.g. TIG [tungsten inert gas], MIG [metal inert gas] or plasma welding
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
The invention relates to a bumper beam (B) comprising a main cross member (1) and a cross member part (2) fixedly attached to said main cross member (1). Said cross member part (2) forms in itself or together with one or more portions of the main cross member (1) a closed chamber (C) in a cross section of the bumper beam and is arranged at an upper side (11) or at a lower side (12) of said main cross member (1). Said closed chamber (C) abuts and extends over only a portion of said upper side (11) or said lower side (12) of said main cross member (1) as seen in the cross direction of said main cross member (1) and over essentially the entire length and in a longitudinal direction of said main cross member (1). Said main cross member (1) together with said cross member part (2) form a closed main chamber (M).
B60R 19/04 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section
28.
Method of hot-shaping and hardening an object from a metal sheet, and a B-pillar for a vehicle
A B-pillar for a vehicle is made by the press hardening method. The blank is made by placing two blank elements (20,21) with an overlap (23) and welding the elements together before the shaping process.
A bumper beam is comprised of a hat-shaped profile (11) with a cover (12). The cover faces outward from the vehicle and has vertical depressions (21) at the locations of the fastening portions (18, 19) of the bumper beam, as well as horizontal depressions between said fastening portions. The sides (14, 15) of the hat-shaped profile have depressions directed in the longitudinal direction of the vehicle.
A bumper beam has a hat-shaped profile (11) with a cover (12) which is recessed into the hat-shaped profile and is welded to the sides (16, 17) of the hat-shaped profile, inside the hat-shaped profile.
A bumper beam has a U-profile with its top directed toward the vehicle. It has fixedly welded mounting plates (16, 17) in the form of horizontal hat-shaped profiles. The mounting plates are bolted to end plates (19) on the side rails (18) of the vehicle, so that collision stresses are transferred to all four sides (29, 30, 32, 33) of the respective side rail.
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
33.
ROLL FORMED BUMPER BEAM AND METHOD FOR MANUFACTURING A BUMPER BEAM
A bumper beam is roll formed so that it gets a closed cross section with, along the length, constant cross section having at least two closed chambers (15, 16) separated by an essentially horizontal partition wall (14). Each chamber has a side (19), which is turned away from the vehicle, with at least one longitudinal concave portion (20, 21; 22, 23) extending along the entire length and one side (24), which is facing the vehicle, with at least one longitudinal convex portion (25, 26; 27, 28) extending along the entire length. After the roll forming, some portions (32) of the cross section are pressed together vertically or horizontally in order to adapt the deformation properties.
A door beam has a double hat profile between its mounting ends (12, 13). The height of the outer sidewalls (14, 15) of the double hat profile decreases from a central part (25) of the beam towards the mounting ends (12, 13). Thus the height ratio between the outer (14, 15) and the inner (18, 19) sidewalls is decreased towards the mounting ends.
A bumper beam is comprised of a hat-shaped profile (11) with a cover (12). The cover faces outward from the vehicle and has vertical depressions (21) at the locations of the fastening portions (18, 19) of the bumper beam, as well as horizontal depressions between said fastening portions. The sides (14, 15) of the hat-shaped profile have depressions directed in the longitudinal direction of the vehicle.
A hat profile (11) has a tensile strength exceeding 1400 MPa and it has soft bands (20) with a tensile strength below 1100 MPa on its side flanges (15,16). The profile is welded to a cover (17) by single rows of weld dots (18). The side flanges have high strength zones (21,22) on both sides of the soft bands (20).
A B-pillar is shaped from a sheet blank (20,21) into a hat profile with a central flange (12), two sides (13,14) and two side flanges (15,16), and it has, over a portion of its length, a reinforcing sheet (21) that make the B-pillar have double sheets. The reinforcing sheet (21) extends out over the side flanges (15,16) over at least ¼ of its length and narrows down at both its ends so that it does not extend out over the side flanges over part of its length.
B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
A shaped, sealed sandwich product is manufactured by press hardening of a sandwich blank consisting of two sheets (12, 13) with spacer material (14) and solder lying in between. The edges of the blank are excepted from the spacer material and the edges are pressed together in the press hardening so that the sheet edges are sealingly joined without spacer material. Alternatively, there is a sealing rim with spacer material along the edges.
A bumper beam has a hat-shaped profile (11) with a cover (12) which is recessed into the hat-shaped profile and is welded to the sides (16, 17) of the hat-shaped profile, inside the hat-shaped profile.
A bumper beam has a U-profile with its top directed toward the vehicle. It has fixedly welded mounting plates (16, 17) in the form of horizontal hat-shaped profiles. The mounting plates are bolted to end plates (19) on the side rails (18) of the vehicle, so that collision stresses are transferred to all four sides (29, 30, 32, 33) of the respective side rail.
A door beam has a double hat profile between its mounting ends (12, 13). The height of the outer sidewalls (14, 15) of the double hat profile decreases from a central part (25) of the beam towards the mounting ends (12, 13). Thus the height ratio between the outer (14, 15) and the inner (18, 19) sidewalls is decreased towards the mounting ends.
A B-pillar is shaped from a sheet blank (20,21 ) into a hat profile with a central flange (12), two sides (13,14) and two side flanges (15,16), and it has, over a portion of its length, a reinforcing sheet (21 ) that make the B-pillar have double sheets. The reinforcing sheet (21 ) extends out over the side flanges (15,16) over at least ¼ of its length and narrows down at both its ends so that it does not extend out over the side flanges over part of its length.
In a press-hardening plant, a contact-cooling press (12) is provided between the furnace (11) and the press-hardening press (13). Preselected parts of the blank (18) are contact-cooled such that corresponding parts of the finished product are softer and display a lower yield point.
A safety beam (11) in a vehicle door comprises an attachment end with a plurality of grooves (22, 23, 24) forming through channels to the underlying structure. The grooves have a height of 1-6 mm and an inner width of 3-7 mm and flat surfaces (18-21) between the grooves and to the outside of the outermost grooves have a width of 15-30 mm. Each of the flat surfaces comprises only one spot weld (26-29) to the underlying structure (12). The safety beam is immersed in a bath of anti-corrosive paint after assembly and is thus protected against crevice corrosion.
A sheet steel blank is heated to the austenite range and formed in a cooled tool pair that rapidly cools the formed product until the product's temperature drops somewhat below the temperature Ms for the start of the formation of martensite. The cooling is rapidly interrupted and the product's temperature is raised until it exceeds Ms and is maintained there until the material comes to contain more than 50% by volume bainite. The short time under the Ms temperature favours the formation of bainite and shortens the holding time.
An A-pillar for a vehicle includes a first part (15) extending as far as the windscreen and supporting the door hinges and a second arcuate part (16) extending up along the windscreen and continuing towards the back in order to serve as a roof beam (19) above the door. This second part consists of two open sections (23, 24) with flanges (25, 26; 27, 28) welded together so as to give the pillar a closed profile. At least one of the sections (23) is press-hardened and has a breaking strength in excess of 1400 MPa and the flanges (25, 26; 27, 28) of the sections have a breaking strength below 1100 MPa in a portion (35) situated above the door.
The invention relates to a B-pillar for a vehicle including a main section (20) with a hat-shaped section (21) comprising a central flange (22), two web portions (23, 24) and two side flanges (25, 26). At least the hat-shaped section (21) is press-hardened and has a breaking strength in excess of 1400 MPa and the side flanges (25, 26) of the hat-shaped section (21) have a breaking strength below 1100 MPa along at least part of the length of the side flanges (25, 26). The B-pillar (13) includes a cover plate (40) welded to the side flanges (25, 26) of the hat-shaped section (21) so as to form a closed profile, the cover plate (40) having a breaking strength below 1100 MPa at least in the region in which it bears against the side flanges (25, 26). The side flanges (25, 26) of the hat-shaped section have a breaking strength below 1100 MPa in the region in which the side flanges bear against the cover plate (40).
A bumper with integrated crumple is formed from a central beam (11) and two outer beams (12, 13), the ends of the central beam and adjacent ends of the outer beams being curved and welded together to form crash boxes (14, 15).
A method of forming a product by shaping and hardening a sheet-steel blank formed from separate sheets welded together, heating the blank to the austenitising range, hot stamping the blank in a cooled tool pair, hardening the product while it remains in the tool pair, and cooling the weld between two adjacent sheets at a reduced cooling rate as compared to the cooling rate of areas on either side of the weld.
A side rail for vehicles has a tensile strength in excess of 1400 MPa and has one end (16) projecting from the safety cage of the vehicle and adapted to carry a bumper. The end projecting from the safety cage has lower strength with a yield point of less than 1000 MPa over a length of at least 0.4 m. It has an outer portion with a length of at least 0.2 m and a tensile strength below 800 MPa and an inner portion with a higher tensile strength than the outer portion.
The bumper arrangement shown consists of a bumper beam (11) welded to two crash boxes (12, 13). The central part of the bumper beam has a U-section open towards the vehicle. Its central flange (14) has a central groove (19) gradually deepening towards the two attachment portions (20, 21) of the bumper beam so that the bumper beam has an inverted profile, i.e. it has a U-section open away from the vehicle. The crash boxes have a closed profile with an upper surface (25), a lower surface (26) and two vertical sides (27, 28) and have recesses (30) at the ends of the vertical sides adapted to the inverted U-section of the bumper beam and welded to the inverted U-section.
In a press-hardening plant, a contact-cooling press (12) is provided between the furnace (11) and the press-hardening press (13). Preselected parts of the blank (18) are contact-cooled such that corresponding parts of the finished product are softer and display a higher yield point.
A safety beam (11) in a vehicle door comprises an attachment end with a plurality of grooves (22, 23, 24) forming through channels to the underlying structure. The grooves have a height of 1-6 mm and an inner width of 3-7 mm and flat surfaces (18-21) between the grooves and to the outside of the outermost grooves have a width of 15-30 mm. Each of the flat surfaces comprises only one spot weld (26-29) to the underlying structure (12). The safety beam is immersed in a bath of anti-corrosive paint after assembly and is thus protected against crevice corrosion.
A crash box for a vehicle is made from a sheet blank (10) which is bent in a U to form the front plate (11), a top side (12) and a bottom side (13), and the top side and bottom side are bent to form overlapping flaps (16-19) which are joined together at the overlapping, and to form rear fastening plates (14,15).
A bumper includes a bumper bar (14) and two crash boxes (11) welded to the bumper bar, one of the crash boxes having an inwardly threaded sleeve (17) serving as an attachment means for a towing eyelet. A mounting plate (13) is welded to the outer end of the crash box, thereby serving as a cover, and to the bumper bar (14). The mounting plate has an indentation with a hole to the edges (18) of which the sleeve (17) is welded and the sleeve is supported against the edge (19) of a hole in the bumper bar at an axial distance from the point at which it is welded to the mounting plate.
An A-pillar for a vehicle includes a first part (15) extending as far as the windscreen and supporting the door hinges and a second arcuate part (16) extending up along the windscreen and continuing towards the back in order to serve as a roof beam (19) above the door. This second part consists of two open sections (23, 24) with flanges (25, 26; 27, 28) welded together so as to give the pillar a closed profile. At least one of the sections (23) is press-hardened and has a breaking strength in excess of 1400 MPa and the flanges (25, 26; 27, 28) of the sections have a breaking strength below 1100 MPa in a portion (35) situated above the door.
The invention relates to a B-pillar for a vehicle including a main section (20) with a hat-shaped section (21) comprising a central flange (22), two web portions (23, 24) and two side flanges (25, 26). At least the hat-shaped section (21) is press-hardened and has a breaking strength in excess of 1400 MPa and the side flanges (25, 26) of the hat-shaped section (21) have a breaking strength below 1100 MPa along at least part of the length of the side flanges (25, 26). The B-pillar (13) includes a cover plate (40) welded to the side flanges (25, 26) of the hat-shaped section (21) so as to form a closed profile, the cover plate (40) having a breaking strength below 1100 MPa at least in the region in which it bears against the side flanges (25, 26). The side flanges (25, 26) of the hat-shaped section have a breaking strength below 1100 MPa in the region in which the side flanges bear against the cover plate (40).
A bumper beam has an open hat beam profile with a central flange (11), two webs (12, 13) and two side flanges (14, 15), and it has two fastening portions (16, 17) in which the central flange has transverse recesses (30, 31), which continue along the webs for a maximum of 40% of the extent of the webs in the transverse direction. These recesses strengthen the profile and provide controlled deformation in response to collision loading.
An impact guard beam for vehicles comprises a beam (11) with a hat profile, i.e., with a crown (13-15) and side flanges (16-17), and the hat profile has its crown facing outwards. The beam has a cover (20) giving at least a central part of the beam a closed cross section. The cover has a profile allowing it to lengthen by straightening out when the hat beam's profile opens under impact loads, but stops the hat beam profile's opening when the cover is straightened out. The cover may carry a sensor (24) for an airbag, which is then placed inside the beam profile.
A bumper with integrated crumple is formed from a central beam (11) and two outer beams (12,13), the ends of the central beam and adjacent ends of the outer beams being curved and welded together to form the crash boxes (14,15).
A bumper beam for a vehicle has two attachment portions (15, 16) with a U-shaped cross section open towards the vehicle. Each attachment portion has a reinforcing member (29) in the form of a hat-profile located within the attachment portion and across the latter, with its webs (31, 32) welded to the webs (13, 14) of the attachment portion. The side flanges (33, 34) of the hat profile have holes (35, 36) for bolts by means of which the side flanges and thereby the bumper beam can be attached to a structural part of the vehicle and the attachment section has holes (41) to allow fastening bolts of this kind to be fastened through these holes.
The properties of products manufactured by press hardening from composite blanks, referred to as tailor- welded blanks (TWB), are improved by cooling the weld at a reduced cooling rate during the hardening of the formed product so that a narrow, soft area is formed alongside the weld.
A B-pillar (12) for a vehicle is fastened between a roof member (13) and a sill member (15) of the vehicle. The pillar has a martensitic structure and the steel has an tensile strength of at least 1300 MPa. Close to the lower fastening portion (14) there is a soft portion (20) with a tensile strength of less than 800 MPa. This soft portion has a height of at least 30 mm, extend over less than ⅓ of the pillar height, and is so positioned that the lower fastening portion is martensitic.
A side rail for vehicles has a tensile strength in excess of 1400 MPa and has one end (16) projecting from the safety cage of the vehicle and adapted to carry a bumper. The end projecting from the safety cage has lower strength with a yield point of less than 1000 MPa over a length of at least 0.4 m. It has an outer portion with a length of at least 0.2 m and a tensile strength below 800 MPa and an inner portion with a higher tensile strength than the outer portion.
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
F16F 7/12 - Vibration-dampersShock-absorbers using plastic deformation of members
69.
METHOD OF MANUFACTURING OF A FORMED PRODUCT AND USE OF THE METOD
The invention relates to a method of manufacturing a product (10) formed in a pressing tool, wherein the tool is also designed to carry out a cutting and/or punching operation on the product. The cutting operation/punching operation is incomplete, such that waste/scrap (33, 41; 52; 64) resulting from the cutting/punching operation remains with the product (10) when the product leaves the pressing tool. The waste/scrap (33, 41; 52; 64) is removed during a subsequent finishing. The waste/scrap (33, 41; 52; 64) remains with the product (10) via at least one connecting bridge (31, 42; 51; 61) or the like.
A bumper beam is fastened to a bumper beam (11) of a vehicle (13) with intermediate crash boxes (12). Each crash box comprises a left member (20) and a right member (21) formed of sheet metal, which are jointed together and have top portions (24,25) overlapping each other and bottom portions (22,23) overlapping each other to form double-sheet tabs (34,35). These tabs extend out over the top and bottom surfaces of the bumper beam and are fastened to these surfaces.
A bumper beam for a vehicle has a hat shaped profile with the crown (12-14) facing the vehicle and has a cover (17) that gives the bumper beam a closed profile. The bumper beam has two mountings (20, 21) that usually are adapted to be fitted to the side rails of the vehicle. The cover is extended on both sides past the mountings, but leaves the outer portions of the hat beam open. The crown of the open portions of the hat beam have a longitudinal indentation (32) and a profile height that decreases towards the ends.
A bumper beam has a hat shaped profile and is turned with the crown (12-14) towards the vehicle and has a lid (17) that gives the bumper beam a closed profile. The bumper beam has two mountings (20, 21) that usually are adapted to be fitted to the side rails of the vehicle. The mountings (20, 21; 40) consist of a plate formed from one piece that has two standing sides (23, 24; 43, 44) and from these out-turned flanges (25, 26) with holes (28) for mounting to the vehicle, where the standing sides have cut-outs (27) adapted for the bottom and sides of the bumper beam and are welded to these.
B60R 19/04 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section
A bow-formed bumper beam for a vehicle has a hat profile with a central flange (11), two webs (12, 13), and side flanges (14, 15). The beam has fastening portions (20, 21) at its sides where the side flanges form fastening areas (30-33) for fastening the beam to the vehicle with the central flange facing outwards. In the area between the fastening areas, the side flanges have bent edges (26, 27) and in association with the beginning of the bent edges, they have transverse dents (29). These dents will easily be flattened out when the beam is bent in a collision so that the local tension in these sensitive areas is reduced. Thereby, the risk of cracking is reduced.
A crash box for a vehicle is made from a sheet blank (10) which is bent in a U to form the front plate (11), a top side (12) and a bottom side (13), and the top side and bottom side are bent to form overlapping flaps (16-19) which are joined together at the overlapping, and to form rear fastening plates (14,15).
A vehicle door has an impact protection beam (12) which bears a sensor (20) for releasing one or more impact cushions. The beam (12) is a hat beam with its concave side facing towards the interior of the vehicle, and a fitting hole (18) in the central flange (12) for fitting the sensor (20) within the beam. One of the hat beam's webs (13) has clip holes for fitting the sensor's cabling along the beam.
A bumper beam for a vehicle has a hat beam profile, i.e. a generally U-shaped cross-section with the crown (12-16) pointing outwards. In each attachment region (20) it has a transverse bulkhead (25) fastened between the crown's sides (12, 13) and running generally in the longitudinal direction of the vehicle.
A bumper beam has a generally U shape with a central flange (12; 12′) and two webs (13, 14; 13′, 14′), which central flange in the longitudinal middle portion of the beam points outwards from a vehicle and has a longitudinal concavity (17; 17′), which deepens progressively towards the end portions of the beam in order to change to or connect to fastening plates (20, 21; 20′, 21′).
B60R 19/04 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section
An impact guard beam for vehicles comprises a beam (11) with a hat profile, i.e., with a crown (13-15) and side flanges (16-17), and the hat profile has its crown facing outwards. The beam has a cover (20) giving at least a central part of the beam a closed cross section. The cover has a profile allowing it to lengthen by straightening out when the hat beam's profile opens under impact loads, but stops the hat beam profile's opening when the cover is straightened out. The cover may carry a sensor (24) for an airbag, which is then placed inside the beam profile.
The invention relates to a method of manufacturing a formed sheet-metal product (10), in which a heated initial blank is formed and cooled in a pressing tool (50) in such a manner that hardening of the sheet-metal product takes place in the pressing tool. An elongated soft zone (A) is produced inside a hardened edge area (18a) of the sheet-metal product (10) by preventing hardening or by producing a lower degree of hardness in the said zone (A). Subsequent cutting or punching or another working process is carried out in the soft zone (A) so that the formed sheet-metal product (10) acquires the intended final tolerance. The invention also relates to a press-hardened sheet-metal product manufactured by the method.
A B-pillar for a vehicle is made by the press-hardening method. The blank is made by placing together two blank elements (20,21) with an overlap (23) and welding the elements together before the shaping process.
In the press-hardening process, if one wishes to have soft portions in the finished product and therefore reduces the cooling rate for these portions so that the material in these portions does not obtain the same high proportion of martensite as the rest of the product, one can improve the elongation at rupture in these soft portions by using annealed sheet steel as the starting blank, even though the hot shaping is done at a temperature in which the steel is austenitic.
A bumper beam for a vehicle has two attachment portions (15, 16) with a U-shaped cross section open towards the vehicle. Each attachment portion has a reinforcing member (29) in the form of a hat-profile located within the attachment portion and across the latter, with its webs (31, 32) welded to the webs (13, 14) of the attachment portion. The side flanges (33, 34) of the hat profile have holes (35, 36) for bolts by means of which the side flanges and thereby the bumper beam can be attached to a structural part of the vehicle and the attachment section has holes (41) to allow fastening bolts of this kind to be fastened through these holes.
A bumper beam in the form of an open hat beam with a central flange (11) pointing outwards has a transverse bulkhead (23) at one of its fastening portions (17). An internally threaded socket (22) is welded to the transverse bulkhead parallel with the bulkhead and protrudes through a hole (21) in the central flange (11) so that a tow eyelet can be screwed firmly into the socket when needed and thereafter be unscrewed.
A high-strength product of sheet steel is produced in the press hardening process. A blank is heated to reach austenite structure and hot-stamped in a pair of cooled tools. The product is kept in the tools to rapidly be cooled to harden with the tools as a fixture. The blank has a surface of black oxide before it is shaped and the shaped product is painted directly on the black surface.
A crash box (11) has a closed profile designed to be attached to a side rail of a vehicle by being inserted into the side rail and fastened by means of through bolts (27). The portion (24) intended to be inserted into the side rail has reduced width and has an essentially rectangular section with bolt holes on its narrow horizontal sides (18, 19). The inserted portion of the crash box takes up at most half the width of the side rail.
A B-pillar (12) for a vehicle is fastened between a roof member (13) and a sill member (15) of the vehicle. The pillar has a martensitic structure and the steel has an tensile strength of at least 1300 MPa. Close to the lower fastening portion (14) there is a soft portion (20) with a tensile strength of less than 800 MPa. This soft portion has a height of at least 30 mm, extend over less than 1/3 of the pillar height, and is so positioned that the lower fastening portion is martensitic.
A crash box (11,12) is positioned high relative to the bumper beam (13) on, for example, an SUV. The underside (22) of the crash box has a profiled cross-section with upper (25,26) and lower (24) longitudinal portions. At least one upward profile portion (25,26) changes to being a downward-pointing profile portion (27,28) near to the outer end of the crash box, thereby increasing the vertical extent of the crash box. The underside of the crash box may have a hat profile which at its outer end changes to an inverted hat profile.
A bow-formed bumper beam for a vehicle has a hat profile with a central flange (11), two webs (12,13), and side flanges (14,15). The beam has fastening portions (20,21) at its sides where the side flanges form fastening areas (30-33) for fastening the beam to the vehicle with the central flange facing outwards. The profile height of the beam decreases continuously from the fastening portions towards the center so that the profile height is less than two third of the highest profile height at the fastening portions. The central flange is wider at its center than at its fastening portions and has a stiffener in the form of an elongate depression (16) that extends from the center of the beam towards the fastening portions. In the area between the fastening portions, the side flanges have bent edges (26,27) and in association with the beginning of the bent edges, the side flanges have transverse dents.
A crash box consists of two U-profiles (18, 19) of sheet metal, the webs of which (21, 23 and 20, 22) overlap and are joined such that the crash box obtains a closed profile. The two joined sides (21, 23 and 20, 22) of the crash box have a number of transverse dents (26-33) with intermediate side areas (34-40) along their lengths. One web, or both webs, in one pair or in each pair of joined webs (21, 23 and 20, 22) has notches (50-54) in its edge in some of the dents (26-33) or in the intermediate areas (34-40), or both of these, as initiators of deformation.
A bumper beam has a hat shaped profile and is turned with the crown (12-14) towards the vehicle and has a lid (17) that gives the bumper beam a closed profile. The bumper beam has two mountings (20, 21) that usually are adapted to be fitted to the side rails of the vehicle. The mountings (20, 21; 40) consist of a plate formed from one piece that has two standing sides (23, 24; 43, 44) and from these out-turned flanges (25, 26) with holes (28) for mounting to the vehicle, where the standing sides have cut-outs (27) adapted for the bottom and sides of the bumper beam and are welded to these.
A bumper beam for a vehicle has a hat shaped profile with the crown (12-14) facing the vehicle and has a cover (17) that gives the bumper beam a closed profile. The bumper beam has two mountings (20, 21) that usually are adapted to be fitted to the side rails of the vehicle. The cover is extended on both sides past the mountings, but leaves the outer portions of the hat beam open. The crown of the open open portions of the hat beam have a longitudonal indentation (32) and a profile height that decreases towards the ends.
A vehicle door comprises an outer module (10) which itself comprises a loadbearing doorframe (12-16) made of high-strength sheet steel which has a lateral collision protection (16) and bears the hinges of the door, and an outer panel (17) fastened in the doorframe in such a way that it is closely adjacent to the lateral collision protection, and an inner module which comprises an inner panel, a window surround, a window winding device and a door lock, the inner module constituting a closed box (26) against the doorframe and being screwed firmly to the doorframe in such a way that it is removable as a unit while the doorframe is attached to the bodywork by its hinges. The window surround (27) of the inner panel comprises a first profile (28) which is open outwards and is otherwise formed integrally with the inner panel, and a second open profile (29) which is fastened to the first profile in such a way that the window surround is provided with a closed profile.
A bumper beam has an open hat beam profile with a central flange (11), two webs (12, 13) and two side flanges (14, 15), and it has two fastening portions (16, 17) in which the central flange has transverse recesses (30, 31), which continue along the webs for a maximum of 40% of the extent of the webs in the transverse direction. These recesses strengthen the profile and provide controlled deformation in response to collision loading.
The invention relates to a bumper beam which has a generally U shape with a central flange (12; 12') and two webs (13, 14; 13', 14'), which central flange in the longitudinal middle portion of the beam points outwards from a vehicle and has a longitudinal concavity (17;17'), which deepens progressively towards the end portions of the beam in order to change to or connect to fastening plates (20,21;20',21 ').
A vehicle door has an impact protection beam (12) which bears a sensor (20) for releasing one or more impact cushions. The beam (12) is a hat beam with its concave side facing towards the interior of the vehicle, and a fitting hole (18) in the central flange (12) for fitting the sensor (20) within the beam. One of the hat beam's webs (13) has clip holes for fitting the sensor's cabling along the beam.
A B-pillar for a vehicle is made by the press-hardening method. The blank is made by placing together two blank elements (20,21) with an overlap (23) and welding the elements together before the shaping process.
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 47/01 - Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
A bumper beam comprises a hat-shaped beam with a cover. The cover has a number of indentations (25-28) into the hat beam, which are welded to the inside of the hat beam and render the bumper beam torsionally rigid.
A bumper beam for a vehicle has a hat beam profile, i.e. a generally U-shaped cross- section with the crown (12-16) pointing outwards. In each attachment region (20) it h a transverse bulkhead (25) fastened between the crown's sides (12,13) and running generally in the longitudinal direction of the vehicle.
A bumper beam in the form of an open hat beam with a central flange (11) pointing outwards has a transverse bulkhead (23) at one of its fastening portions (17). An internally threaded socket (22) is welded to the transverse bulkhead parallel with the bulkhead and protrudes through a hole (21) in the central flange (11) so that a tow eyelet can be screwed firmly into the socket when needed and thereafter be unscrewed.
B60D 1/56 - Traction couplingsHitchesDraw-gearTowing devices characterised by the mounting securing to the vehicle bumper
B60R 19/18 - Means within the bumper to absorb impact
B60R 19/48 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
A bumper beam particularly adapted to deforming advantageously in response to various kinds of impacts, both low impacts and high impacts and both barrier impacts and offset impacts. It takes the form of a U-section with the profile open towards the vehicle, where the U-section has attachment portions (14,15) with side flanges (16,17) which form attachment surfaces for fastening to the vehicle. The profile height decreases from the attachment portions (16,17) towards the middle portion of the beam, and at least one of the profile side flanges (16) changes, both towards the middle portion of the beam and towards its ends, to a secondary small U-section (23,24) which is open to the vehicle.
