WO2002004253A1 - Procede de fabrication d'elements structurels et elements structurels fabriques par ce procede - Google Patents

Procede de fabrication d'elements structurels et elements structurels fabriques par ce procede Download PDF

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Publication number
WO2002004253A1
WO2002004253A1 PCT/NO2001/000295 NO0100295W WO0204253A1 WO 2002004253 A1 WO2002004253 A1 WO 2002004253A1 NO 0100295 W NO0100295 W NO 0100295W WO 0204253 A1 WO0204253 A1 WO 0204253A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy absorbing
shape
members
parts
manufacturing
Prior art date
Application number
PCT/NO2001/000295
Other languages
English (en)
Inventor
Tor Arne St Jern
Egil TRØMBORG
Original Assignee
Norsk Hydro Asa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Norsk Hydro Asa filed Critical Norsk Hydro Asa
Priority to AU2001280270A priority Critical patent/AU2001280270A1/en
Priority to EP01958645A priority patent/EP1299266A1/fr
Publication of WO2002004253A1 publication Critical patent/WO2002004253A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/14—Making other products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—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
    • B62D21/152—Front or rear frames

Definitions

  • the present invention relates to a method of manufacturing energy absorbing structural members having closed cross-sectional configuration, and more particularly to manufacturing of crash boxes in (motor) vehicles, and also the members provided by such method.
  • a further object of the present invention is to provide novel energy absorbing structural members exhibiting variations in their wall thickness in the direction of their longitudinal extension comprising integrated additional parts.
  • Fig. 1 shows schematically in a perspective view an extruded open shape
  • Figs. 2-3 illustrate in a perspective view subsequent steps of material removing and reshaping/folding of the shape
  • Fig. 4 shows schematically the formed closed shape member being joined along abutted longitudinally extending folded walls.
  • Figure 1 is a perspective view of an open shape 1 being conventionally provided by extrusion process, or alternatively by drawing of aluminium alloy material.
  • the open shape is extruded with protruding ribs 11 ,12, representing a material buffer for consequent steps of reshaping and so does the thicker wall part 13 extending longitudinally in the extrusion direction as indicated in Figure 1.
  • Figure 2 illustrates schematically the second step of the manufacturing method - cutting of excess material from the protruding ribs 11 ,12, thus providing several vertically protruding parts 22,23.
  • Figure 3 schematically illustrates a first step in the process of bending/reshaping along the longitudinal extension of the energy absorbing member to be, showing formation of a side wall and top wall where the top wall at the same time provides a joining seam line 31 to be abutted to the corresponding seam line 32 after finishing the bending operation.
  • the buffer material from the thicker wall part 33, originally extruded in the longitudinal extrusion direction, is advantageously applied in providing thicker parts situated in front of the formed member and in plan normal to the extruding direction.
  • this novel method of manufacturing allows to provide the excess material in areas needed for formation of e.g. fastening flanges, reinforcing ribs etc. as illustrated in Figure 4.
  • Figure 4 illustrates schematically in a perspective view the ready folded hollow energy absorption member where the abutted opposing walls 41 ,42 are joined together along the joining line 43, preferentially by the new welding process so-called friction stir welding, resulting in no thermal distortion of the welded member.
  • the novel integral one-piece energy member in this particular case a crash box member, is provided with front part 44 exhibiting increased wall thickness. Furthermore, provision of the integrated flanges 45 simplifies construction and facilitates assembling, thus reducing both time and cost of the assembling operations. Additionally several protruding parts can be provided, e.g. the shown attachment flanges 46 integrated with the rear part of the crash box and reinforcing ribs 47 or means for e.g. fastening towing hooks (not shown in the Figure).
  • the actual energy absorbing structural member provided by the novel manufacturing method could be a (front/rear) side member in the space frame construction of vehicles.
  • the actual energy absorbing structural member provided by the novel manufacturing method could be a (front/rear) side member in the space frame construction of vehicles.
  • other cross-sectional configurations than the shown rectangular one can advantageously be provided by means of the novel manufacturing method.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

Un élément structurel est réalisé sous la forme d'une pièce unique manifestant une variation de l'épaisseur de la paroi, assurée par un procédé de fabrication qui consiste à extruder une forme ouverte, la plier le long de l'axe principal pour obtenir une configuration à coupe transversale définitive et finalement fermer la forme le long des parois mises bout-à-bout par soudage.
PCT/NO2001/000295 2000-07-10 2001-07-10 Procede de fabrication d'elements structurels et elements structurels fabriques par ce procede WO2002004253A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2001280270A AU2001280270A1 (en) 2000-07-10 2001-07-10 Method of manufacturing structural members and the members provided by such method
EP01958645A EP1299266A1 (fr) 2000-07-10 2001-07-10 Procede de fabrication d'elements structurels et elements structurels fabriques par ce procede

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20003555 2000-07-10
NO20003555A NO20003555L (no) 2000-07-10 2000-07-10 Fremgangsmåte ved fremstilling av konstruksjonselementer og de resulterende elementer

Publications (1)

Publication Number Publication Date
WO2002004253A1 true WO2002004253A1 (fr) 2002-01-17

Family

ID=19911365

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2001/000295 WO2002004253A1 (fr) 2000-07-10 2001-07-10 Procede de fabrication d'elements structurels et elements structurels fabriques par ce procede

Country Status (4)

Country Link
EP (1) EP1299266A1 (fr)
AU (1) AU2001280270A1 (fr)
NO (1) NO20003555L (fr)
WO (1) WO2002004253A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003082655A1 (fr) * 2002-03-30 2003-10-09 Bayerische Motoren Werke Aktiengesellschaft Traverse entre deux zones de bord laterales d'une structure de vehicule
WO2005014372A1 (fr) * 2003-08-06 2005-02-17 Dofasco Tubular Products Inc. Chassis de vehicules possedant un systeme de gestion d'energie et procede de fabrication de ce chassis
DE10335666A1 (de) * 2003-08-04 2005-04-14 Bayerische Motoren Werke Ag Zug-Druckstrebe für eine Fahrzeugkarosserie
DE102005057429A1 (de) * 2005-11-30 2007-06-06 Benteler Automobiltechnik Gmbh Crashbox
CN103878554A (zh) * 2014-04-01 2014-06-25 湖南大学 一种梯度化分配的薄壁吸能结构的加工方法
WO2014201547A1 (fr) * 2013-06-21 2014-12-24 Magna Presstec Ag Logement de moyen de remorquage et procédé de fabrication
CN104384842A (zh) * 2014-09-28 2015-03-04 常州捷佳创精密机械有限公司 一种槽体的制作方法
CN104690496A (zh) * 2013-12-04 2015-06-10 青岛润鑫伟业科贸有限公司 一种细化金属晶粒的冷加工工艺方法
CN104691464A (zh) * 2015-03-10 2015-06-10 东北大学 一种车用纵向变壁厚金属吸能盒及其制备方法
US9656623B2 (en) 2014-11-20 2017-05-23 Hyundai Motor Corporation Crash box of vehicle having integrated joint structure by spot welding and assembly method thereof
DE102016101150A1 (de) * 2016-01-22 2017-07-27 Benteler Automobiltechnik Gmbh Prallträger und Verfahren zur Herstellung eines Prallträgers
KR101903481B1 (ko) * 2016-12-20 2018-10-02 주식회사 성우하이텍 차량용 크래시 박스 및 그 제조 방법
CN109623274A (zh) * 2018-12-17 2019-04-16 马鞍山市新马精密铝业股份有限公司 一种铝合金材质吸能盒的机加工方法
CN113385896A (zh) * 2021-06-10 2021-09-14 深圳金鑫绿建股份有限公司 用于焊接弯扭箱型的工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19533366A1 (de) * 1995-09-09 1997-03-13 Ymos Ag Ind Produkte Aufprallträger für Kraftfahrzeuge
WO1998014285A1 (fr) * 1996-10-01 1998-04-09 Hydro Raufoss Automotive A/S Procede de fabrication d'un element structurel
DE19715308A1 (de) * 1997-04-11 1998-10-22 Benteler Werke Ag Verfahren zur Herstellung eines stoßabsorbierenden Kraftfahrzeugbauteils
DE19829566A1 (de) * 1997-08-08 1999-02-18 Ymos Ag Ind Produkte Aufpralldämpfer für Kraftfahrzeuge
US5996645A (en) * 1996-03-22 1999-12-07 The Furukawa Electric Co., Ltd. Aluminum alloy extruded square pipe excellent in axially compressive properties for automobile front side member
WO2000035610A1 (fr) * 1998-12-14 2000-06-22 Norsk Hydro Asa Procede de fabrication d'elements de structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19533366A1 (de) * 1995-09-09 1997-03-13 Ymos Ag Ind Produkte Aufprallträger für Kraftfahrzeuge
US5996645A (en) * 1996-03-22 1999-12-07 The Furukawa Electric Co., Ltd. Aluminum alloy extruded square pipe excellent in axially compressive properties for automobile front side member
WO1998014285A1 (fr) * 1996-10-01 1998-04-09 Hydro Raufoss Automotive A/S Procede de fabrication d'un element structurel
DE19715308A1 (de) * 1997-04-11 1998-10-22 Benteler Werke Ag Verfahren zur Herstellung eines stoßabsorbierenden Kraftfahrzeugbauteils
DE19829566A1 (de) * 1997-08-08 1999-02-18 Ymos Ag Ind Produkte Aufpralldämpfer für Kraftfahrzeuge
WO2000035610A1 (fr) * 1998-12-14 2000-06-22 Norsk Hydro Asa Procede de fabrication d'elements de structure

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003082655A1 (fr) * 2002-03-30 2003-10-09 Bayerische Motoren Werke Aktiengesellschaft Traverse entre deux zones de bord laterales d'une structure de vehicule
EP1772354A3 (fr) * 2002-03-30 2007-05-02 Bayerische Motoren Werke Aktiengesellschaft Traverse entre les deux cotés d'une structure de véhicule
DE10335666A1 (de) * 2003-08-04 2005-04-14 Bayerische Motoren Werke Ag Zug-Druckstrebe für eine Fahrzeugkarosserie
WO2005014372A1 (fr) * 2003-08-06 2005-02-17 Dofasco Tubular Products Inc. Chassis de vehicules possedant un systeme de gestion d'energie et procede de fabrication de ce chassis
DE102005057429A1 (de) * 2005-11-30 2007-06-06 Benteler Automobiltechnik Gmbh Crashbox
EP1792786A3 (fr) * 2005-11-30 2008-06-25 Benteler Automobiltechnik GmbH Boitier absorbeur d'énergie
DE102005057429B4 (de) * 2005-11-30 2009-06-25 Benteler Automobiltechnik Gmbh Crashbox
WO2014201547A1 (fr) * 2013-06-21 2014-12-24 Magna Presstec Ag Logement de moyen de remorquage et procédé de fabrication
US9855906B2 (en) 2013-06-21 2018-01-02 Magna International Inc. Receptacle for a towing means and method of manufacture
CN104690496A (zh) * 2013-12-04 2015-06-10 青岛润鑫伟业科贸有限公司 一种细化金属晶粒的冷加工工艺方法
CN103878554A (zh) * 2014-04-01 2014-06-25 湖南大学 一种梯度化分配的薄壁吸能结构的加工方法
CN104384842A (zh) * 2014-09-28 2015-03-04 常州捷佳创精密机械有限公司 一种槽体的制作方法
US9656623B2 (en) 2014-11-20 2017-05-23 Hyundai Motor Corporation Crash box of vehicle having integrated joint structure by spot welding and assembly method thereof
CN104691464A (zh) * 2015-03-10 2015-06-10 东北大学 一种车用纵向变壁厚金属吸能盒及其制备方法
DE102016101150A1 (de) * 2016-01-22 2017-07-27 Benteler Automobiltechnik Gmbh Prallträger und Verfahren zur Herstellung eines Prallträgers
US10239388B2 (en) 2016-01-22 2019-03-26 Benteler Autobobiltechnik Gmbh Impact beam and method for producing an impact beam
KR101903481B1 (ko) * 2016-12-20 2018-10-02 주식회사 성우하이텍 차량용 크래시 박스 및 그 제조 방법
CN109623274A (zh) * 2018-12-17 2019-04-16 马鞍山市新马精密铝业股份有限公司 一种铝合金材质吸能盒的机加工方法
CN113385896A (zh) * 2021-06-10 2021-09-14 深圳金鑫绿建股份有限公司 用于焊接弯扭箱型的工艺

Also Published As

Publication number Publication date
NO20003555L (no) 2002-01-11
EP1299266A1 (fr) 2003-04-09
AU2001280270A1 (en) 2002-01-21
NO20003555D0 (no) 2000-07-10

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