EP1029611A3 - High inner pressure deformation process for making in particular hollow bend undercut products and the installation therefor - Google Patents

High inner pressure deformation process for making in particular hollow bend undercut products and the installation therefor Download PDF

Info

Publication number
EP1029611A3
EP1029611A3 EP00103174A EP00103174A EP1029611A3 EP 1029611 A3 EP1029611 A3 EP 1029611A3 EP 00103174 A EP00103174 A EP 00103174A EP 00103174 A EP00103174 A EP 00103174A EP 1029611 A3 EP1029611 A3 EP 1029611A3
Authority
EP
European Patent Office
Prior art keywords
parts
making
inner pressure
deformation process
flange
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.)
Granted
Application number
EP00103174A
Other languages
German (de)
French (fr)
Other versions
EP1029611B1 (en
EP1029611A2 (en
Inventor
Bernd Dr. Ing. Schulze
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.)
Dr Meleghy Hydroforming GmbH and Co KG
Original Assignee
Dr Meleghy Hydroforming GmbH and Co KG
Meleghy Hydroforming GmbH and Co KG
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 Dr Meleghy Hydroforming GmbH and Co KG, Meleghy Hydroforming GmbH and Co KG filed Critical Dr Meleghy Hydroforming GmbH and Co KG
Publication of EP1029611A2 publication Critical patent/EP1029611A2/en
Publication of EP1029611A3 publication Critical patent/EP1029611A3/en
Application granted granted Critical
Publication of EP1029611B1 publication Critical patent/EP1029611B1/en
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
    • B21D26/021—Deforming sheet bodies
    • B21D26/029—Closing or sealing means
    • 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
    • B21D26/031—Mould construction
    • 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
    • B21D26/059—Layered blanks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The process uses two work piece parts (1,2), one of which is cup-shaped and has a flange. The parts are pressed together in the area of the flange, in a forming tool, are together subjected to an internal high pressure forming process, and machined further separately or together. During the pressure medium-tight pressing, the parts execute a movement relative to each other, and stamping takes place in the flange area (1.1,1.2), to influence material flow and/or aid sealing and/or achieve position fixing of the parts.
EP00103174A 1999-02-19 2000-02-16 Device for hydroforming hollow bend undercut products Expired - Lifetime EP1029611B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19907247A DE19907247C2 (en) 1999-02-19 1999-02-19 Device for producing in particular bulbous undercut hollow bodies
DE19907247 1999-02-19

Publications (3)

Publication Number Publication Date
EP1029611A2 EP1029611A2 (en) 2000-08-23
EP1029611A3 true EP1029611A3 (en) 2001-05-23
EP1029611B1 EP1029611B1 (en) 2003-05-14

Family

ID=7898224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00103174A Expired - Lifetime EP1029611B1 (en) 1999-02-19 2000-02-16 Device for hydroforming hollow bend undercut products

Country Status (4)

Country Link
US (1) US6966209B1 (en)
EP (1) EP1029611B1 (en)
AT (1) ATE240170T1 (en)
DE (2) DE19907247C2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20100568U1 (en) * 2001-01-13 2001-03-08 Erlau Ag Eisen Drahtwerk End profile for a support and / or holding surface and contract furniture with such an end profile
DE10141503C1 (en) * 2001-08-24 2002-10-10 Audi Ag Production of an elongated hollow body comprises roller profiling and deforming a basic body using an internal high pressure deformation process allowing controlled material flow to produce a fixed flange
DE10249601B3 (en) * 2002-10-18 2004-05-06 Brandenburgische Technische Universität Cottbus Bar-shaped bearer of band-shaped parts for e.g. shock absorbers for cars consists of parallel band parts connected at seams, fastened to flat top plate, and with outward curved center
CN100458351C (en) 2003-10-02 2009-02-04 贝洱两合公司 Charge-air cooler for motor vehicles
DE10350145B4 (en) * 2003-10-28 2006-04-13 Daimlerchrysler Ag Generation of hydroformed components with flange
US7251973B2 (en) * 2005-09-12 2007-08-07 Gharib Mohamed T Hydroforming apparatus
TWI383847B (en) * 2009-12-31 2013-02-01 Metal Ind Res & Dev Ct Mold for manufacturing metal case and manufacturing method therefor
US8683837B2 (en) * 2010-01-12 2014-04-01 Novelis Inc. Methods of pressure forming metal containers and the like from preforms having wall thickness gradient
JP6050817B2 (en) 2011-08-19 2016-12-21 マグナ インターナショナル インコーポレイテッド Self-compensating retractable insert for high temperature forming tools
DE102016220221A1 (en) * 2016-10-17 2018-04-19 Bayerische Motoren Werke Aktiengesellschaft Internal hydroforming tool and method of forming a workpiece by hydroforming
DE102018203987B3 (en) * 2018-03-15 2019-03-21 Bayerische Motoren Werke Aktiengesellschaft Tool for forming and method for producing a component and use of a tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361215A1 (en) * 1973-12-08 1975-06-12 Volkswagenwerk Ag Closed container made from two sheet metal plates - which are simultaneously formed on single press tool
DE19535870A1 (en) * 1995-07-24 1997-02-06 Blz Gmbh Method of forming shell=like hollow structures from two sheet sections - by clamping the ends of the sheet and flowing a pressure medium between the two
WO1998024569A1 (en) * 1996-12-03 1998-06-11 Elpatronic Ag Method for producing a molded part and a molded part produced according to said method
DE19651658A1 (en) * 1996-12-12 1998-06-18 Krupp Ag Hoesch Krupp Method for producing shaped components

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728317A (en) * 1951-10-23 1955-12-27 Walton S Clevenger Apparatus for hydraulic die forming
US4331284A (en) * 1980-03-14 1982-05-25 Rockwell International Corporation Method of making diffusion bonded and superplastically formed structures
JPS5966941A (en) * 1982-10-07 1984-04-16 Mitsubishi Heavy Ind Ltd Manufacture of mold
US5671629A (en) * 1996-02-15 1997-09-30 Valyi; Emery I. Hydrostatic forming device and process
US5692406A (en) * 1996-09-27 1997-12-02 Mcdonnell Douglas Corporation Gas inlet for a superplastic forming die and method of use
DE19719426B4 (en) * 1997-05-12 2005-06-16 Dr. Meleghy Hydroforming Gmbh & Co. Kg Method and device for producing a hollow body
DE19732413B4 (en) * 1997-07-28 2005-03-24 Forschungsgesellschaft Umformtechnik Mbh Method and device for the combined hydro-forming of sheet metal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361215A1 (en) * 1973-12-08 1975-06-12 Volkswagenwerk Ag Closed container made from two sheet metal plates - which are simultaneously formed on single press tool
DE19535870A1 (en) * 1995-07-24 1997-02-06 Blz Gmbh Method of forming shell=like hollow structures from two sheet sections - by clamping the ends of the sheet and flowing a pressure medium between the two
WO1998024569A1 (en) * 1996-12-03 1998-06-11 Elpatronic Ag Method for producing a molded part and a molded part produced according to said method
DE19651658A1 (en) * 1996-12-12 1998-06-18 Krupp Ag Hoesch Krupp Method for producing shaped components

Also Published As

Publication number Publication date
DE19907247C2 (en) 2001-08-23
US6966209B1 (en) 2005-11-22
EP1029611B1 (en) 2003-05-14
EP1029611A2 (en) 2000-08-23
DE50002132D1 (en) 2003-06-18
ATE240170T1 (en) 2003-05-15
DE19907247A1 (en) 2000-08-31

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