EP0931605B1 - Méthode de production d'un corps creux allongé - Google Patents

Méthode de production d'un corps creux allongé Download PDF

Info

Publication number
EP0931605B1
EP0931605B1 EP98118631A EP98118631A EP0931605B1 EP 0931605 B1 EP0931605 B1 EP 0931605B1 EP 98118631 A EP98118631 A EP 98118631A EP 98118631 A EP98118631 A EP 98118631A EP 0931605 B1 EP0931605 B1 EP 0931605B1
Authority
EP
European Patent Office
Prior art keywords
hollow body
hollow member
producing
elongated hollow
components
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP98118631A
Other languages
German (de)
English (en)
Other versions
EP0931605A2 (fr
EP0931605A3 (fr
Inventor
Egon Olszewski
Dieter TÖPKER
Rainer Hansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Benteler Deustchland GmbH
Original Assignee
Benteler Deustchland GmbH
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 Benteler Deustchland GmbH filed Critical Benteler Deustchland GmbH
Publication of EP0931605A2 publication Critical patent/EP0931605A2/fr
Publication of EP0931605A3 publication Critical patent/EP0931605A3/fr
Application granted granted Critical
Publication of EP0931605B1 publication Critical patent/EP0931605B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/053—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure characterised by the material of the blanks
    • B21D26/057—Tailored blanks
    • 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
    • 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
    • B21C37/065—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 starting from a specific blank, e.g. tailored blank

Definitions

  • the invention relates to a method for manufacturing an elongated hollow body made of naturally hard aluminum or a hardenable aluminum alloy, as in the general heading of Claim 1 mentioned and correspondingly disclosed in DE 4 142 325.
  • an elongated hollow body made of natural hard Aluminum, for example AlMgMn or a curable Aluminum alloy, e.g. AlMgSil, manufactured in the at least two sheets of different wall thickness be joined together on a circuit board. Then will this board is formed into a hollow body and attached to the Longitudinal edges connected by joining technology. By means of the hydraulic Hydroforming is the hollow body in brought the final configuration.
  • Has wall thickness It is essential that for Manufacture of sheet metal from aluminum or aluminum alloys are used. This can be a considerable amount of weight can be saved.
  • aluminum is an ideal material for vehicle construction because it is light, rustproof and recyclable.
  • Such a hollow body with reduced wall thickness in some areas can be used for the production of components who are under external stress, but where the tensions that occur due to the Component construction spread over the component in different heights occur.
  • examples for this are Body parts or chassis components from Motor vehicles.
  • the components after the Dimensioned maximum load this does not result so far only for an unnecessary use of materials, but above all also at an unnecessary weight.
  • Such disadvantages are avoided according to the invention in that the elongated hollow body used to manufacture the components Find use according to the later load in different areas of the components be dimensioned and also made of light metal become. This will reduce the later burdens of such Component taken into account, also a high level of Material and weight savings achieved.
  • Hollow bodies have a better bending and section modulus on than before and can in their stress behavior optimally adapted to the respective purpose become.
  • the longitudinal edges are preferably joined by means of Laser welding technology.
  • Laser welding technology come powerful laser sources for use. Carbon dioxide lasers are suitable.
  • a high-performance light beam is particularly advantageous, that changes the properties of aluminum so that the light is not reflected, but is absorbed. The in this way through the light beam in the joint edge area The energy brought in melts the metal. The subsequently solidified melt then sets a firm connection.
  • the joining process can be automated and is therefore ideal for mass production.
  • Size and shape of aluminum light metal sheets can vary. These parameters are according to the Component design and occurring load voltages selected.
  • For the production of elongated hollow bodies in Sheets made of naturally hard aluminum are lightweight (AlMgMn) and hardenable alloys (AlMgSi1) in particular well suited. This creates a hollow body with Properties with regard to strength, load capacity and load voltage behavior that is optimal on the later use is coordinated.
  • the manufactured with the inventive method elongated hollow bodies are particularly suitable for the Manufacture of body parts or chassis components.
  • the hollow body indicates one of its later use coordinated configuration with a high degree of weight saving. There will be two opposing ones Trends united by being a heavy duty Chassis carrier is realized in lightweight construction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Body Structure For Vehicles (AREA)
  • Laminated Bodies (AREA)

Claims (2)

  1. Procédé pour la fabrication d'un corps creux allongé en aluminium de dureté naturelle, comme par exemple en AlMgMn ou en alliage d'aluminium durcissable, comme par exemple AlMgSil, caractérisé en ce que l'on assemble bout à bout au moins deux tôles de différente épaisseur de paroi pour constituer un flan, puis l'on forme ce flan en un corps creux et consécutivement on raccorde ses bords longitudinaux par une technique d'assemblage, après quoi ce corps creux est amené à la configuration définitive par formage hydraulique à pression élevée interne.
  2. Procédé selon la revendication 1, caractérisé en ce que le corps creux est un composant des éléments de support d'un châssis dans la construction de véhicules.
EP98118631A 1998-01-24 1998-10-01 Méthode de production d'un corps creux allongé Expired - Lifetime EP0931605B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19802685 1998-01-24
DE19802685A DE19802685A1 (de) 1998-01-24 1998-01-24 Verfahren zur Herstellung eines länglichen Hohlkörpers und dessen Anwendung

Publications (3)

Publication Number Publication Date
EP0931605A2 EP0931605A2 (fr) 1999-07-28
EP0931605A3 EP0931605A3 (fr) 2000-05-03
EP0931605B1 true EP0931605B1 (fr) 2001-12-19

Family

ID=7855576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118631A Expired - Lifetime EP0931605B1 (fr) 1998-01-24 1998-10-01 Méthode de production d'un corps creux allongé

Country Status (6)

Country Link
EP (1) EP0931605B1 (fr)
BR (1) BR9804252A (fr)
CZ (1) CZ295791B6 (fr)
DE (2) DE19802685A1 (fr)
ES (1) ES2166584T3 (fr)
PT (1) PT931605E (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1014823C2 (nl) * 2000-04-03 2001-10-04 Corus Staal Bv Werkwijze voor het vervaardigen van een buisvormig onderdeel.
DE10018238C1 (de) * 2000-04-12 2001-12-20 Vaw Alutubes Gmbh Abrollkolben für Luftfedersysteme
DE10024225A1 (de) * 2000-05-17 2001-11-22 Volkswagen Ag Einschaliger Lenker für eine Fahrzeugradaufhängung und Verfahren zur Herstellung eines solchen Lenkers
JP2002153930A (ja) * 2000-09-06 2002-05-28 Toyota Motor Corp 中空部材、その製造方法、その中空部材を用いた流体流通システム、および中空状材の成形装置
DE10153799A1 (de) * 2001-11-05 2003-05-15 Zf Lemfoerder Metallwaren Ag Kraftverbindungsstrebe
DE50303905D1 (de) * 2002-05-22 2006-08-03 Norsk Hydro As Einstückiger Federlenker
DE10252135A1 (de) * 2002-11-09 2004-05-27 Zf Friedrichshafen Ag Achsaufhängung in Einzelradaufhängung für Kraftfahrzeuge
US6825442B2 (en) * 2003-01-06 2004-11-30 General Motors Corporation Tailor welded blank for fluid forming operation
DE10360327A1 (de) * 2003-12-20 2005-07-21 Robert Bosch Gmbh Verfahren zur Herstellung eines festen Gehäuses
DE102005027409B4 (de) * 2005-06-02 2010-12-02 Koki Technik Transmission Systems Gmbh Rastierungshülse

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2714905C3 (de) * 1977-04-02 1979-10-04 Metallgesellschaft Ag, 6000 Frankfurt Zweistufiges Aufblähen von Kanalplatten
DE4142325C2 (de) * 1991-12-20 1996-06-13 Bayerische Motoren Werke Ag Verfahren zum Herstellen von Fahrwerksträgern
DE4216640C2 (de) * 1992-05-20 1994-08-25 Daimler Benz Ag Einstückig gefalteter Lenker
DE4232161A1 (de) * 1992-09-25 1994-03-31 Audi Ag Verfahren zum Herstellen eines Hohlkörpers
US5333775A (en) * 1993-04-16 1994-08-02 General Motors Corporation Hydroforming of compound tubes
DE4320656B4 (de) * 1993-06-22 2005-07-07 Schuler Hydroforming Gmbh & Co. Kg Anwendung des bekannten Innenhochdruckverfahrens
DE19535870C2 (de) * 1995-07-24 2002-07-11 Blz Gmbh Verfahren zum Herstellen von schalenförmigen Hohlstrukturen aus gedoppelten Blechzuschnitten mittels Innenhochdruckumformen
DE19624955A1 (de) * 1996-06-24 1998-01-08 Matthias Prof Dr Ing Kleiner Verfahren zur Herstellung von Rohren durch eine Umformung mittels Wirkmedien
CA2273904C (fr) * 1996-12-03 2006-05-02 Elpatronic Ag Procede pour la fabrication d'une piece moulee, ainsi que piece moulee ainsi fabriquee
DE19713963C1 (de) * 1997-04-04 1998-10-22 Prototechnik Gmbh Fluidführungselement

Also Published As

Publication number Publication date
DE59802523D1 (de) 2002-01-31
ES2166584T3 (es) 2002-04-16
DE19802685A1 (de) 1999-07-29
PT931605E (pt) 2002-06-28
EP0931605A2 (fr) 1999-07-28
BR9804252A (pt) 1999-12-07
CZ322298A3 (cs) 1999-10-13
EP0931605A3 (fr) 2000-05-03
CZ295791B6 (cs) 2005-11-16

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