EP2095890B1 - Procédé de déformation d'un composant de profilé creux à l'aide d'une haute pression interne - Google Patents

Procédé de déformation d'un composant de profilé creux à l'aide d'une haute pression interne Download PDF

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Publication number
EP2095890B1
EP2095890B1 EP20090002084 EP09002084A EP2095890B1 EP 2095890 B1 EP2095890 B1 EP 2095890B1 EP 20090002084 EP20090002084 EP 20090002084 EP 09002084 A EP09002084 A EP 09002084A EP 2095890 B1 EP2095890 B1 EP 2095890B1
Authority
EP
European Patent Office
Prior art keywords
hollow profile
component
profile component
reinforcing component
pressure
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.)
Not-in-force
Application number
EP20090002084
Other languages
German (de)
English (en)
Other versions
EP2095890A3 (fr
EP2095890A2 (fr
Inventor
Alexander Hoffmann
Jürgen Sander
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.)
Audi AG
Original Assignee
Audi AG
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 Audi AG filed Critical Audi AG
Publication of EP2095890A2 publication Critical patent/EP2095890A2/fr
Publication of EP2095890A3 publication Critical patent/EP2095890A3/fr
Application granted granted Critical
Publication of EP2095890B1 publication Critical patent/EP2095890B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D26/033—Deforming tubular bodies
    • B21D26/051—Deforming double-walled bodies
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods

Definitions

  • Fig. 1 shows a hollow profile component 1, which may be formed for example as a frame member of a motor vehicle.
  • the hollow profile component 1 may be a lateral roof frame of the motor vehicle.
  • the hollow profile component 1 is preferably made of an aluminum material, but other materials may be suitable for the same.
  • the hollow profile component 1 should consist of a formable material which has been produced, for example, by extrusion, roll forming, tube drawing or the like.
  • the hollow profile component 1 has an outer flange portion 1a, which, however, plays no role in the method described below.
  • the hollow profile component 1 can have approximately any desired external shape.
  • the closure element 5 may optionally have a slightly larger diameter than the inner diameter of the hollow profile component 1, so that the reinforcing member 2 and the closure member 5 must be inserted with a certain force in the hollow profile component 1 and a certain material removal on the closure element 5 can take place ,
  • FIG Fig. 5 A further method step, with which the hollow profile component 1 is shaped together with the reinforcing component 2 by means of internal high pressure, is in FIG Fig. 5 shown.
  • the hollow profile component 1 is inserted with the reinforcing member 2 inserted in the same and the closure element 5 in a forming tool 7, which may be of known type.
  • a pressure medium is introduced.
  • the narrowed end 3 of the reinforcing member 2 is formed tapered and, as already mentioned above, adapted to the recess 6 in the closure element 5.
  • the angle at which the narrowed end 3 is narrowed and which has an influence on the introduction of force via the closure element 5, also depends on the material of the hollow profile component 1, the reinforcing member 2 and in particular the closure element 5 as well as the clearance between the closure element 5 and the Hollow profile component 1 from.

Landscapes

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

Claims (12)

  1. Procédé de déformation d'un composant profilé creux au moyen d'une pression interne élevée, dans lequel on introduit dans le composant profilé creux, avant déformation, un composant de renfort conformé en profilé creux,
    caractérisé en ce que
    le composant de renfort (2) est resserré à une extrémité (3) se trouvant à l'intérieur du composant profilé creux (1) lors de la déformation et en ce qu'il est posé à l'extrémité resserrée (3) du composant de renfort (2) un élément de fermeture (5), dans lequel il est appliqué sur le composant de renfort (2), une fois introduit dans le composant profilé creux (1), par l'extrémité ouverte (4) opposée à l'extrémité resserrée (3), une pression telle que le composant de renfort (2) et l'élément de fermeture (5) soient liés au composant profilé creux (1).
  2. Procédé selon la revendication 1,
    caractérisé en ce que,
    pour appliquer la pression sur le composant de renfort (2), l'extrémité ouverte (4) de celui-ci est fermée par un piston étanche (8) et en ce qu'un agent de pression est introduit dans l'extrémité ouverte (4) du composant de renfort (2).
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que
    l'extrémité resserrée (3) du composant de renfort (2) est conformé en cône qui s'adapte au moins à peu près dans un évidement (6) dans l'élément de fermeture (5).
  4. Procédé selon la revendication 1, 2 ou 3,
    caractérisé en ce que
    le resserrement de l'extrémité (3) du composant de renfort (2) est assuré par un sertissage.
  5. Procédé selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce que
    le resserrement du composant de renfort (2) est réalisé de sorte que l'extrémité resserrée (3) soit fermée.
  6. Procédé selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    une pression est appliquée sur le composant de renfort (2) par son extrémité resserrée (3) au moyen d'un piston étanche (8) et par introduction d'un agent de pression.
  7. Procédé selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    le composant de renfort (2) dépasse du composant profilé creux (1) à son extrémité ouverte (4).
  8. Procédé selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que,
    avant l'application de la pression sur le composant de renfort (2), des opérations de flexion et/ou d'estampage sont effectuées sur le composant profilé creux (1) et sur le composant de renfort (2) introduit dans le composant profilé creux (1).
  9. Procédé selon l'une quelconque des revendications 1 à 8
    caractérisé en ce que
    le diamètre externe du composant de renfort (2) est un peu plus petit que le diamètre interne du composant profilé creux (1).
  10. Procédé selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce que
    le matériau du composant de renfort (2) présente une solidité plus élevée que le matériau du composant profilé creux (1)
  11. Procédé selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que
    l'élément de fermeture (5) est constitué de métal.
  12. Procédé selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que
    l'élément de fermeture (5) est constitué d'un matériau synthétique.
EP20090002084 2008-03-01 2009-02-14 Procédé de déformation d'un composant de profilé creux à l'aide d'une haute pression interne Not-in-force EP2095890B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810012008 DE102008012008B3 (de) 2008-03-01 2008-03-01 Verfahren zur Umformung eines Hohlprofilbauteils mittels Innenhochdruck

Publications (3)

Publication Number Publication Date
EP2095890A2 EP2095890A2 (fr) 2009-09-02
EP2095890A3 EP2095890A3 (fr) 2012-01-18
EP2095890B1 true EP2095890B1 (fr) 2013-04-17

Family

ID=40834392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090002084 Not-in-force EP2095890B1 (fr) 2008-03-01 2009-02-14 Procédé de déformation d'un composant de profilé creux à l'aide d'une haute pression interne

Country Status (2)

Country Link
EP (1) EP2095890B1 (fr)
DE (1) DE102008012008B3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104785604B (zh) * 2015-04-14 2016-10-19 桂林电子科技大学 金属薄壁双层管冲击液压胀形方法及装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5838618A (ja) * 1981-09-01 1983-03-07 Kawasaki Heavy Ind Ltd 内管端部を補強した二重管の製造方法
DE19511970C2 (de) * 1995-04-18 1998-07-09 Werdau Fahrzeugwerk Verfahren zum Herstellen von verformten mehrwandigen Rohren mit Hohlräumen zwischen den Wandungen
DE10013428C1 (de) * 2000-03-17 2001-01-18 Daimler Chrysler Ag Verfahren zur Herstellung von doppelwandigen Hohlprofilen mittels Innenhochdruckumformen
WO2002094472A1 (fr) * 2001-05-22 2002-11-28 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Procede d'hydroformage et produit hydroforme selon ledit procede
US7275521B2 (en) * 2004-06-17 2007-10-02 Usui Kokusai Sangyo Kaisha Limited Joint structure of diverging branch pipe in fuel rail for internal combustion engine, diverging branch pipe and manufacture method of its diverging branch pipe
US7181846B2 (en) * 2004-07-08 2007-02-27 Torque-Traction Technologies, Inc. Method of manufacturing a combined driveshaft tube and yoke assembly

Also Published As

Publication number Publication date
EP2095890A3 (fr) 2012-01-18
DE102008012008B3 (de) 2009-09-03
EP2095890A2 (fr) 2009-09-02

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