DE10343135A1 - Method for producing a circumferentially closed hollow profile - Google Patents

Method for producing a circumferentially closed hollow profile Download PDF

Info

Publication number
DE10343135A1
DE10343135A1 DE10343135A DE10343135A DE10343135A1 DE 10343135 A1 DE10343135 A1 DE 10343135A1 DE 10343135 A DE10343135 A DE 10343135A DE 10343135 A DE10343135 A DE 10343135A DE 10343135 A1 DE10343135 A1 DE 10343135A1
Authority
DE
Germany
Prior art keywords
hollow profile
blank
engraving
producing
circumferentially closed
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
DE10343135A
Other languages
German (de)
Other versions
DE10343135B4 (en
Inventor
Kai-Uwe Dudziak
Uwe Hardtke
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
Priority to DE10343135A priority Critical patent/DE10343135B4/en
Priority to CA002539417A priority patent/CA2539417A1/en
Priority to US10/572,317 priority patent/US20070271980A1/en
Priority to EP04763945A priority patent/EP1663537A1/en
Priority to PCT/EP2004/008925 priority patent/WO2005035160A1/en
Publication of DE10343135A1 publication Critical patent/DE10343135A1/en
Application granted granted Critical
Publication of DE10343135B4 publication Critical patent/DE10343135B4/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/06—Stamping using rigid devices or tools having relatively-movable die parts
    • 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
    • B21D26/047—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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • 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 zur Herstellung eines umfänglich geschlossenen Hohlprofils (2) mittels fluidischen Innenhochdruckes, wobei ein Hohlprofilrohling (7) in eine Gravur (10, 12) eines Innenhochdruckumformwerkzeuges (5) eingelegt und danach mechanisch in eine der Endform des Hohlprofils (2) angenäherte Zwischenform (11) gepresst wird, wonach bei geschlossenem Werkzeug (5) mittels des Innenhochdruckes die Zwischenform (11) des Rohlings (7) in die Endform des Hohlprofils (2) aufgeweitet wird. Um die Herstellung eines vorzuprofilierenden Hohlprofils (2) in relativ einfacher Weise prozesssicher zu ermöglichen, wird vorgeschlagen, einen Rohling (7) zu verwenden, der hinsichtlich seiner Umfangslänge Übermaß zu der Umfangslänge der Umformwerkzeuggravur (10, 12) besitzt. Zudem wird das gegenüber dem zur vollständigen Anlage des Hohlprofilrohlings (7) an der Gravur (10, 12) des Umformwerkzeuges (5) erforderlichen Rohlingsmaterial überschüssige Rohlingsmaterial in den Rohlingsinnenraum (17), unter Bildung einer Einbuchtung (18), frühestens während des Pressvorganges eingedrückt.The invention relates to a method for producing a circumferentially closed hollow profile (2) by fluidic internal high pressure, wherein a hollow profile blank (7) in an engraving (10, 12) of a hydroforming (5) inserted and then mechanically into one of the final shape of the hollow profile (2). Approximated intermediate mold (11) is pressed, after which, when the tool (5) is closed by means of the internal high pressure, the intermediate mold (11) of the blank (7) in the final shape of the hollow profile (2) is widened. In order to reliably enable the production of a hollow profile (2) to be preformed in a relatively simple manner, it is proposed to use a blank (7) which, with regard to its circumferential length, has an excess of the circumferential length of the forming die engraving (10, 12). In addition, over the blank material required for complete abutment of the hollow profile blank (7) on the engraving (10, 12) of the forming tool (5), excess blank material is pressed into the blank interior (17), forming an indentation (18), at the earliest during the pressing process ,

DE10343135A 2003-09-18 2003-09-18 Method for producing a circumferentially closed hollow profile Expired - Fee Related DE10343135B4 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE10343135A DE10343135B4 (en) 2003-09-18 2003-09-18 Method for producing a circumferentially closed hollow profile
CA002539417A CA2539417A1 (en) 2003-09-18 2004-08-10 Method for the production of a peripherally closed hollow profile section
US10/572,317 US20070271980A1 (en) 2003-09-18 2004-08-10 Method for the Production of a Peripherally Closed Hollow Profile Section
EP04763945A EP1663537A1 (en) 2003-09-18 2004-08-10 Method for the production of a peripherally closed hollow profile section
PCT/EP2004/008925 WO2005035160A1 (en) 2003-09-18 2004-08-10 Method for the production of a peripherally closed hollow profile section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10343135A DE10343135B4 (en) 2003-09-18 2003-09-18 Method for producing a circumferentially closed hollow profile

Publications (2)

Publication Number Publication Date
DE10343135A1 true DE10343135A1 (en) 2005-05-12
DE10343135B4 DE10343135B4 (en) 2006-02-02

Family

ID=34428092

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10343135A Expired - Fee Related DE10343135B4 (en) 2003-09-18 2003-09-18 Method for producing a circumferentially closed hollow profile

Country Status (5)

Country Link
US (1) US20070271980A1 (en)
EP (1) EP1663537A1 (en)
CA (1) CA2539417A1 (en)
DE (1) DE10343135B4 (en)
WO (1) WO2005035160A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005055237A1 (en) * 2005-11-19 2007-05-24 Daimlerchrysler Ag Bearing especially for vehicle steering systems fits into housing with frictional contact through plastic deformation of housing and through elastic deformation of bearing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5070717A (en) * 1991-01-22 1991-12-10 General Motors Corporation Method of forming a tubular member with flange
US6209372B1 (en) * 1999-09-20 2001-04-03 The Budd Company Internal hydroformed reinforcements

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19530056B4 (en) * 1995-08-16 2004-09-09 Schuler Hydroforming Gmbh & Co. Kg Method and device for producing T-shaped or at least one dome-like hollow body
US5557961A (en) * 1995-11-13 1996-09-24 General Motors Corporation Hydroformed structural member with varied wall thickness
PL183949B1 (en) * 1996-08-26 2002-08-30 Cosma Int Inc Press-forming die and hydraulic combination press forming method especially for use in production of pipes
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
DE19813012C2 (en) * 1998-03-25 2002-08-01 Daimler Chrysler Ag Process for producing a hollow body from a tubular blank by hydroforming
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
US6257035B1 (en) * 1999-12-15 2001-07-10 Ti Corporate Services Limited Compressive hydroforming

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5070717A (en) * 1991-01-22 1991-12-10 General Motors Corporation Method of forming a tubular member with flange
US6209372B1 (en) * 1999-09-20 2001-04-03 The Budd Company Internal hydroformed reinforcements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005055237A1 (en) * 2005-11-19 2007-05-24 Daimlerchrysler Ag Bearing especially for vehicle steering systems fits into housing with frictional contact through plastic deformation of housing and through elastic deformation of bearing
DE102005055237B4 (en) * 2005-11-19 2010-08-26 Daimler Ag Device for fixing a bearing in a housing

Also Published As

Publication number Publication date
US20070271980A1 (en) 2007-11-29
EP1663537A1 (en) 2006-06-07
WO2005035160A1 (en) 2005-04-21
DE10343135B4 (en) 2006-02-02
CA2539417A1 (en) 2005-04-21

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE

8327 Change in the person/name/address of the patent owner

Owner name: DAIMLER AG, 70327 STUTTGART, DE

8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee