EP1208926A3 - Device for hydroforming of hollow workpieces - Google Patents

Device for hydroforming of hollow workpieces Download PDF

Info

Publication number
EP1208926A3
EP1208926A3 EP01124188A EP01124188A EP1208926A3 EP 1208926 A3 EP1208926 A3 EP 1208926A3 EP 01124188 A EP01124188 A EP 01124188A EP 01124188 A EP01124188 A EP 01124188A EP 1208926 A3 EP1208926 A3 EP 1208926A3
Authority
EP
European Patent Office
Prior art keywords
head
cavity
stems
workpiece
heads
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
EP01124188A
Other languages
German (de)
French (fr)
Other versions
EP1208926B1 (en
EP1208926A2 (en
Inventor
Bernd Dr. Engel
Michael Dipl.-Ing. Schierz
Matthias Dr.-Ing. Prier
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.)
Schuler Hydroforming GmbH and Co KG
Original Assignee
Schuler 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 Schuler Hydroforming GmbH and Co KG filed Critical Schuler Hydroforming GmbH and Co KG
Publication of EP1208926A2 publication Critical patent/EP1208926A2/en
Publication of EP1208926A3 publication Critical patent/EP1208926A3/en
Application granted granted Critical
Publication of EP1208926B1 publication Critical patent/EP1208926B1/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
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • 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
    • B21D26/045—Closing or sealing means
    • 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
    • Y10T29/49428—Gas and water specific plumbing component making
    • Y10T29/49444—Elbow or L-shaped fitting making

Abstract

A high-pressure bulge-forming apparatus has a multipart die having a cavity adapted to receive a hollow workpiece and having ends oppositely open along an axis. Respective actuators aligned with the cavity ends have stems extending axially toward the cavity. Respective heads on the ends are engageable in the cavity with ends of the workpiece. One of the stems and the respective head is formed with a passage opening axially into the workpiece engaged by the respective head. Fasteners releasable secure the heads on the stems. Each head comprises an end part with an inwardly tapered outer surface and a base part fixed to the respective stem and carrying the respective head. In addition each head has a normally annular mounting plate between the respective base part and end part.
EP01124188A 2000-11-15 2001-10-11 Device for hydroforming of hollow workpieces Expired - Lifetime EP1208926B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10056610 2000-11-15
DE10056610A DE10056610A1 (en) 2000-11-15 2000-11-15 High-pressure bulge-forming apparatus for producing complex-shaped hollow articles, has fasteners that releasably secure heads on stems of actuators aligned with cavity ends of multipart die assembly

Publications (3)

Publication Number Publication Date
EP1208926A2 EP1208926A2 (en) 2002-05-29
EP1208926A3 true EP1208926A3 (en) 2003-07-09
EP1208926B1 EP1208926B1 (en) 2004-12-08

Family

ID=7663396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01124188A Expired - Lifetime EP1208926B1 (en) 2000-11-15 2001-10-11 Device for hydroforming of hollow workpieces

Country Status (7)

Country Link
US (1) US6591650B2 (en)
EP (1) EP1208926B1 (en)
JP (1) JP2002205126A (en)
KR (1) KR20020038493A (en)
AT (1) ATE284281T1 (en)
DE (2) DE10056610A1 (en)
ES (1) ES2233548T3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050126243A1 (en) * 2000-10-19 2005-06-16 Lee Arthur L. Apparatus and method for hydroforming a tubular part
DE10236296B4 (en) * 2002-08-08 2004-10-28 Schuler Hydroforming Gmbh & Co. Kg Device for the internal high pressure forming of hollow bodies
US20080092975A1 (en) * 2006-09-15 2008-04-24 Grimes David L Heater core connector
DE102006047017A1 (en) * 2006-10-02 2008-04-03 Fachhochschule Köln Fakultät für Angewandte Sozialwissenschaften Equipment used for high internal pressure forming of micro-components from tubular workpieces, incorporates carriage guidance system within mold body
JP4772736B2 (en) * 2007-04-20 2011-09-14 東尾メック株式会社 Pipe tip processing tool
US8511124B2 (en) 2009-09-18 2013-08-20 Nibco Inc. T-fitting manufacturing method and tool
CN102527812A (en) * 2011-12-26 2012-07-04 北京航空航天大学 Combined mould for pipe free bulging
US8910500B2 (en) 2012-09-10 2014-12-16 National Research Council Of Canada Low friction end feeding in tube hydroforming
US20140259398A1 (en) * 2013-03-15 2014-09-18 Christopher Reid Kendall Conductive Exercise or Sleep Mat for Grounding a User
CN104596858B (en) * 2013-10-30 2017-06-06 上海汇众汽车制造有限公司 Obtain the experimental provision of Tube Hydroforming basic property parameter
CL2014002270A1 (en) * 2014-08-27 2014-11-28 Mulet Martinez Mauricio Eduardo Mulicamara with ultra high pressure or hydraulic motor pumps or motor pumps, to compress gas or liquid at ultra high pressure, which are formed by several cameras of different sizes in a concentric way, where each chamber contains smaller chambers inside, and between cameras are installed motors or pumps that allow fluid to be introduced with increasing pressure into the inner chambers.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309680A1 (en) * 1993-03-25 1994-09-29 Huber & Bauer Gmbh Apparatus for the internal high-pressure forming of a tubular blank
EP0995512A2 (en) * 1998-10-08 2000-04-26 Alusuisse Technology & Management AG Method and device for sealing a hollow profile or similar workpiece in high pressure forming
JP2001105043A (en) * 1999-10-13 2001-04-17 Aida Eng Ltd Nozzle of hydraulic bulge forming device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2837810A (en) * 1955-06-17 1958-06-10 Flexonics Corp Method of producing fittings
US5233854A (en) * 1992-05-11 1993-08-10 General Motors Corporation Press apparatus for hydroforming a tube
US5445002A (en) * 1993-08-16 1995-08-29 Ti Corporate Services Limited Fill and pressurization apparatus
JP3688921B2 (en) * 1999-01-14 2005-08-31 日産自動車株式会社 Hydraulic forming nozzle and hydraulic forming apparatus
US6279364B1 (en) * 1999-02-16 2001-08-28 Gary E. Morphy Sealing method and press apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309680A1 (en) * 1993-03-25 1994-09-29 Huber & Bauer Gmbh Apparatus for the internal high-pressure forming of a tubular blank
EP0995512A2 (en) * 1998-10-08 2000-04-26 Alusuisse Technology & Management AG Method and device for sealing a hollow profile or similar workpiece in high pressure forming
JP2001105043A (en) * 1999-10-13 2001-04-17 Aida Eng Ltd Nozzle of hydraulic bulge forming device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 21 3 August 2001 (2001-08-03) *

Also Published As

Publication number Publication date
JP2002205126A (en) 2002-07-23
ATE284281T1 (en) 2004-12-15
EP1208926B1 (en) 2004-12-08
DE50104756D1 (en) 2005-01-13
US6591650B2 (en) 2003-07-15
KR20020038493A (en) 2002-05-23
ES2233548T3 (en) 2005-06-16
EP1208926A2 (en) 2002-05-29
DE10056610A1 (en) 2002-05-23
US20020056305A1 (en) 2002-05-16

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