EP1216769A3 - Method and apparatus for making a closed hollow section - Google Patents

Method and apparatus for making a closed hollow section Download PDF

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Publication number
EP1216769A3
EP1216769A3 EP01129173A EP01129173A EP1216769A3 EP 1216769 A3 EP1216769 A3 EP 1216769A3 EP 01129173 A EP01129173 A EP 01129173A EP 01129173 A EP01129173 A EP 01129173A EP 1216769 A3 EP1216769 A3 EP 1216769A3
Authority
EP
European Patent Office
Prior art keywords
blank
hollow section
membrane
hollow profile
hollow
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
EP01129173A
Other languages
German (de)
French (fr)
Other versions
EP1216769A2 (en
EP1216769B1 (en
Inventor
Kai-Uwe Dudziak
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.)
Daimler 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 EP1216769A2 publication Critical patent/EP1216769A2/en
Publication of EP1216769A3 publication Critical patent/EP1216769A3/en
Application granted granted Critical
Publication of EP1216769B1 publication Critical patent/EP1216769B1/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
    • 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
    • B21D26/021—Deforming sheet bodies
    • B21D26/031—Mould construction
    • 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

Abstract

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Herstellung eines umfänglich geschlossenen Hohlprofiles, wobei ein Hohlprofilrohling (10) in einem Innenhochdruckumformwerkzeug mittels fluidischen Innenhochdruck aufgeweitet wird, wonach dieser die Endform des Hohlprofiles erreicht. Um in einfacher Weise eine Herstellung eines Hohlprofiles zu ermöglichen, bei der auch bei großen Aufweitungen des Hohlprofiles (10) (größer oder gleich der Bruchdehnung des Materials) die Prozeßsicherheit in ausreichendem Maße gewährleistet ist, wird vorgeschlagen, daß der Hohlprofilrohling (10) auf zumindest einem Teilumfangsbereich während der Aufweitung mittels wenigstens einer an der dem Rohling zugewandten Innenseite (11) des Werkzeuges befestigten und mit einem von außen wirkenden steuerbaren Druck beaufschlagbaren Membrane (12) abgestützt wird, wobei diese mit dem Fortlauf der Aufweitung unter Reduzierung des auf die Membrane (12) wirkenden Stützdruckes elastisch zurückweicht.

Figure 00000001
The invention relates to a method and a device for producing a circumferentially closed hollow profile, wherein a hollow profile blank (10) is expanded in a hydroforming by means of fluidic internal high pressure, after which it reaches the final shape of the hollow section. In order to enable a simple production of a hollow profile, in which even with large expansions of the hollow section (10) (greater than or equal to the elongation at break of the material) the process reliability is sufficiently ensured, it is proposed that the hollow section blank (10) on at least a partial circumferential region is supported during expansion by means of at least one membrane (12) which is attached to the inside of the blank (11) facing the blank and is acted upon by an externally acting controllable pressure, said membrane being supported by the expansion of the membrane ( 12) acting support pressure elastically recedes.
Figure 00000001
EP01129173A 2000-12-23 2001-12-08 Method and apparatus for making a closed hollow section Expired - Lifetime EP1216769B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10065033 2000-12-23
DE10065033A DE10065033C1 (en) 2000-12-23 2000-12-23 Method for producing a circumferentially closed hollow profile and a device for carrying it out

Publications (3)

Publication Number Publication Date
EP1216769A2 EP1216769A2 (en) 2002-06-26
EP1216769A3 true EP1216769A3 (en) 2003-11-19
EP1216769B1 EP1216769B1 (en) 2005-10-12

Family

ID=7668996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01129173A Expired - Lifetime EP1216769B1 (en) 2000-12-23 2001-12-08 Method and apparatus for making a closed hollow section

Country Status (4)

Country Link
US (1) US6634198B2 (en)
EP (1) EP1216769B1 (en)
CA (1) CA2366209C (en)
DE (2) DE10065033C1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60113595T2 (en) * 2000-06-16 2006-05-18 Nippon Steel Corp. Form closure device and form closure method
DE10121787C1 (en) * 2001-05-04 2002-07-11 Daimler Chrysler Ag Method, for shaping additional element at a closed hollow profile, uses high inner fluid pressure within it to force the mantle into a shaped branch cavity while supported externally by an elastic membrane under pressure
WO2003095122A1 (en) * 2002-05-08 2003-11-20 Flow Holdings Sagl Device and method for expansion forming
DE102005013689B3 (en) * 2005-03-21 2006-01-05 Forschungsgesellschaft Umformtechnik Mbh Separating or piercing device for workpiece deformed by internal pressure has elastic membrane subject to pressure for separating or piercing
DE102006012625C5 (en) * 2006-03-20 2010-06-17 Audi Ag Method for producing profiles
US7827838B2 (en) * 2008-05-05 2010-11-09 Ford Global Technologies, Llc Pulsed electro-hydraulic calibration of stamped panels
CN116944329B (en) * 2023-09-21 2023-12-12 太原理工大学 Ultra-high-speed forming device for plate processing based on impact hydraulic principle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4840053A (en) * 1987-07-29 1989-06-20 Mitsui & Co., Ltd. Method for manufacturing a pipe with projections
EP0497438A1 (en) * 1991-01-28 1992-08-05 MANNESMANN Aktiengesellschaft Method and device to hydraulically expand tubular hollow profiles
US6143235A (en) * 1997-08-02 2000-11-07 Daimlerchrysler Ag Method for producing secondary mold elements
DE10121787C1 (en) * 2001-05-04 2002-07-11 Daimler Chrysler Ag Method, for shaping additional element at a closed hollow profile, uses high inner fluid pressure within it to force the mantle into a shaped branch cavity while supported externally by an elastic membrane under pressure

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423862A (en) * 1944-12-30 1947-07-15 Casimer E Vorobik Binding and covering apparatus
US3888098A (en) * 1974-02-27 1975-06-10 Boeing Co Liquid metal core transpactor elements for electromagnetic forming tools
US5829137A (en) * 1995-04-03 1998-11-03 Grassi; John R. Method for manufacturing wheels
US5813266A (en) * 1995-10-31 1998-09-29 Greenville Tool & Die Company Method of forming and piercing a tube
BR9810899A (en) * 1997-07-18 2000-09-26 Cosma Int Inc Process of forming an elongated tubular metal member, and, equipment to form a tubular metal part in an elongated tubular metal member.
JP3206505B2 (en) * 1997-08-06 2001-09-10 住友金属工業株式会社 Hydraulic bulge processing method and hydraulic bulge processing apparatus for metal tube
US6070445A (en) * 1997-10-29 2000-06-06 Trw Inc. Method of manufacturing the control arm
US6415638B1 (en) * 1999-03-26 2002-07-09 Nissan Motor Co., Ltd. Method and device for forming tubular work into shaped hollow product by using tubular hydroforming
US6134931A (en) * 1999-05-26 2000-10-24 Husky Injection Molding Systems Ltd. Process and apparatus for forming a shaped article

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4840053A (en) * 1987-07-29 1989-06-20 Mitsui & Co., Ltd. Method for manufacturing a pipe with projections
EP0497438A1 (en) * 1991-01-28 1992-08-05 MANNESMANN Aktiengesellschaft Method and device to hydraulically expand tubular hollow profiles
US6143235A (en) * 1997-08-02 2000-11-07 Daimlerchrysler Ag Method for producing secondary mold elements
DE10121787C1 (en) * 2001-05-04 2002-07-11 Daimler Chrysler Ag Method, for shaping additional element at a closed hollow profile, uses high inner fluid pressure within it to force the mantle into a shaped branch cavity while supported externally by an elastic membrane under pressure

Also Published As

Publication number Publication date
DE10065033C1 (en) 2002-07-11
EP1216769A2 (en) 2002-06-26
US6634198B2 (en) 2003-10-21
DE50107673D1 (en) 2005-11-17
US20020088263A1 (en) 2002-07-11
CA2366209A1 (en) 2002-06-23
CA2366209C (en) 2006-10-24
EP1216769B1 (en) 2005-10-12

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