EP1677922A1 - Procede et dispositif de fabrication de pieces par formage interieur haute pression - Google Patents

Procede et dispositif de fabrication de pieces par formage interieur haute pression

Info

Publication number
EP1677922A1
EP1677922A1 EP04765036A EP04765036A EP1677922A1 EP 1677922 A1 EP1677922 A1 EP 1677922A1 EP 04765036 A EP04765036 A EP 04765036A EP 04765036 A EP04765036 A EP 04765036A EP 1677922 A1 EP1677922 A1 EP 1677922A1
Authority
EP
European Patent Office
Prior art keywords
blank
workpieces
pressure
gap
cutting edges
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.)
Withdrawn
Application number
EP04765036A
Other languages
German (de)
English (en)
Inventor
Thomas Aue
Stefan Schwarz
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1677922A1 publication Critical patent/EP1677922A1/fr
Withdrawn legal-status Critical Current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
    • B21D26/021—Deforming sheet bodies
    • B21D26/023—Deforming sheet bodies including an additional treatment performed by fluid pressure, e.g. perforating
    • 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
    • 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
    • B21D26/021—Deforming sheet bodies
    • B21D26/027—Means for controlling fluid parameters, e.g. pressure or temperature
    • 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
    • B21D26/035—Deforming tubular bodies including an additional treatment performed by fluid pressure, e.g. perforating
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes

Definitions

  • the separating gap 8 can also be dimensioned such that the calibration pressure P ⁇ is not sufficient to drive the section 15 into the separating gap 8 or to separate the section 15. In this embodiment, the internal high pressure is then increased accordingly via the calibration pressure P ⁇ for the separation process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Punching Or Piercing (AREA)

Abstract

La présente invention concerne un procédé de fabrication simultanée d'au moins deux pièces séparées (6, 7) par formage intérieur haute pression. Selon ledit procédé, une ébauche est insérée dans un outil de formage (2) dont la paroi intérieure (3) comporte au moins une fente de séparation (8), disposée entre deux moules négatifs (4, 5), s'étendant sur l'ensemble de la périphérie des pièces (6, 7), délimitée par deux arêtes de coupe libres (9, 10), espacées l'une de l'autre. Lors du formage, l'ébauche pénètre dans la zone de la ou des fentes de séparation (8) de manière que les arêtes de coupe (9, 10) découpent une section (15) entre deux pièces (6, 7).
EP04765036A 2003-10-28 2004-09-10 Procede et dispositif de fabrication de pieces par formage interieur haute pression Withdrawn EP1677922A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10350154A DE10350154B3 (de) 2003-10-28 2003-10-28 Verfahren und Vorrichtung zum Herstellen von Werkstücken mittels Innenhochdruckumformung
PCT/EP2004/010106 WO2005051561A1 (fr) 2003-10-28 2004-09-10 Procede et dispositif de fabrication de pieces par formage interieur haute pression

Publications (1)

Publication Number Publication Date
EP1677922A1 true EP1677922A1 (fr) 2006-07-12

Family

ID=34258758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765036A Withdrawn EP1677922A1 (fr) 2003-10-28 2004-09-10 Procede et dispositif de fabrication de pieces par formage interieur haute pression

Country Status (6)

Country Link
US (1) US20070157692A1 (fr)
EP (1) EP1677922A1 (fr)
JP (1) JP2007533461A (fr)
CA (1) CA2543691A1 (fr)
DE (1) DE10350154B3 (fr)
WO (1) WO2005051561A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8459077B2 (en) * 2005-02-15 2013-06-11 Nsk Ltd. Manufacturing method for metal member with through hole
DE202006005123U1 (de) * 2006-03-27 2007-08-09 Fgu Forschungsgesellschaft Umformtechnik M.B.H. Vorrichtung zum Trennen oder Lochen eines nach dem Innenhochdruckumformen hergestellten Werkstückes
BR112012002455B1 (pt) * 2009-08-05 2019-11-05 Gi Di Mecc S P A método para obter uma abertura em um membro de corpo oco e equipamento para implementação do método
US20150315666A1 (en) * 2014-04-30 2015-11-05 Ford Global Technologies, Llc Induction annealing as a method for expanded hydroformed tube formability

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383888A (en) * 1963-12-17 1968-05-21 Continental Can Co Magnetic cutoff guiding and positioning of tubing
US3786662A (en) * 1970-08-31 1974-01-22 Continental Can Co Electropneumatic or electrohydraulic cutoff, flanging and re-forming of tubing
RU2043180C1 (ru) * 1991-06-03 1995-09-10 Авиационный научно-промышленный комплекс "ОКБ Сухого" Устройство для магнитно-импульсной штамповки трубчатых заготовок
DE4322063C2 (de) * 1993-07-02 1999-07-15 Schaefer Hydroforming Gmbh Verfahren und Vorrichtung zum Ausschneiden eines Ausschnittes aus einer Wandung eines nach dem Innenhochdruck-Umformverfahren hergestellten Hohlkörpers
DE19716816C2 (de) * 1997-04-22 1999-05-27 Forschungsges Umformtechnik Verfahren und Vorrichtung zum Trennen eines nach dem Innenhochdruck-Umformverfahren hergestellten Hohlkörpers
US6178796B1 (en) * 1998-06-01 2001-01-30 Flow Holdings Gmbh (Sagl) Llc Device and method for shaping flat articles
DE19845186A1 (de) * 1998-10-01 2000-04-13 Binder Technologie Ag Gams Fluidform
US5941112A (en) * 1998-11-23 1999-08-24 General Motors Corporation Method and apparatus for hydrotrimming and hydroshearing
DE19911125C1 (de) * 1999-03-12 2000-11-16 Forschungsges Umformtechnik Verfahren und Vorrichtung zum Trennen oder Lochen eines Werkstücks unter Einfluß eines unter Hochdruck stehenden Druckmediums
US6708542B1 (en) * 1999-06-14 2004-03-23 Pulsar Welding Ltd. Electromagnetic and/or electrohydraulic forming of a metal plate
DE19935714B4 (de) * 1999-07-29 2005-06-23 Audi Ag Vorrichtung und Verfahren zum Trennen oder Lochen eines Werkstückes
SE525494C2 (sv) * 2002-05-15 2005-03-01 Flow Holdings Sagl Formningsverktyg samt membranpress innefattande sådant formningsverktyg
US6751994B2 (en) * 2002-05-28 2004-06-22 Magna International Inc. Method and apparatus for forming a structural member

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005051561A1 *

Also Published As

Publication number Publication date
US20070157692A1 (en) 2007-07-12
JP2007533461A (ja) 2007-11-22
DE10350154B3 (de) 2005-04-07
CA2543691A1 (fr) 2005-06-09
WO2005051561A1 (fr) 2005-06-09

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Inventor name: AUE, THOMAS

Inventor name: SCHWARZ, STEFAN

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Owner name: DAIMLERCHRYSLER AG

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