DE59801162D1 - Method and device for punching a workpiece - Google Patents

Method and device for punching a workpiece

Info

Publication number
DE59801162D1
DE59801162D1 DE59801162T DE59801162T DE59801162D1 DE 59801162 D1 DE59801162 D1 DE 59801162D1 DE 59801162 T DE59801162 T DE 59801162T DE 59801162 T DE59801162 T DE 59801162T DE 59801162 D1 DE59801162 D1 DE 59801162D1
Authority
DE
Germany
Prior art keywords
workpiece
wall
high pressure
punching
medium
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.)
Expired - Fee Related
Application number
DE59801162T
Other languages
German (de)
Inventor
Aribert Prof Dr-Ing H Schwager
Klaus Prof Dr-Ing Siegert
Ralf Dipl-Ing Rieger
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.)
FGU FORSCHUNGSGESELLSCHAFT UMF
Original Assignee
FGU FORSCHUNGSGESELLSCHAFT UMF
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 FGU FORSCHUNGSGESELLSCHAFT UMF filed Critical FGU FORSCHUNGSGESELLSCHAFT UMF
Application granted granted Critical
Publication of DE59801162D1 publication Critical patent/DE59801162D1/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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The punch (10) advances to cut the wall of the workpiece (8), and returns to free the rotating cutting edge (22) of the tool (2). The movement is superimposed by an oscillating motion, and/or the high pressure engaging on the wall of the workpiece is applied by the pressure medium (D) in the same rhythm as the vibrations. Punching takes place during non/oscillating de/increasing high pressure of the medium.
DE59801162T 1997-10-28 1998-10-28 Method and device for punching a workpiece Expired - Fee Related DE59801162D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19747607A DE19747607A1 (en) 1997-10-28 1997-10-28 Punching method for hollow workpieces

Publications (1)

Publication Number Publication Date
DE59801162D1 true DE59801162D1 (en) 2001-09-13

Family

ID=7846886

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19747607A Ceased DE19747607A1 (en) 1997-10-28 1997-10-28 Punching method for hollow workpieces
DE59801162T Expired - Fee Related DE59801162D1 (en) 1997-10-28 1998-10-28 Method and device for punching a workpiece

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19747607A Ceased DE19747607A1 (en) 1997-10-28 1997-10-28 Punching method for hollow workpieces

Country Status (4)

Country Link
EP (1) EP0920932B1 (en)
AT (1) ATE203937T1 (en)
DE (2) DE19747607A1 (en)
ES (1) ES2162380T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10360738B4 (en) * 2003-12-23 2006-02-02 Daimlerchrysler Ag Method and forming tool for cutting a hollow profile
DE102015106859B4 (en) * 2015-05-04 2018-06-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method for shearing high-strength materials and cutting tool arrangement

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989482A (en) * 1989-11-17 1991-02-05 Ti Corporate Services Limited Method and apparatus for punching a hole in sheet material
DE4035625A1 (en) * 1990-11-09 1992-05-14 Audi Ag METHOD FOR PRODUCING A BREAKTHROUGH IN THE WALL OF A WORKPIECE DESIGNED AS A HOLLOW BODY, AND TOOL FOR CARRYING OUT THE METHOD
DE4322063C2 (en) * 1993-07-02 1999-07-15 Schaefer Hydroforming Gmbh Method and device for cutting out a section of a wall of a hollow body produced by the hydroforming process
US5398533A (en) * 1994-05-26 1995-03-21 General Motors Corporation Apparatus for piercing hydroformed part
DE4441192C2 (en) * 1994-11-18 1998-05-20 Schnupp Gmbh & Co Hydraulik Kg Process for hydroforming
DE19506067C1 (en) * 1995-02-22 1996-06-20 Krupp Ag Hoesch Krupp Aperture cutter for pressure moulded items

Also Published As

Publication number Publication date
ATE203937T1 (en) 2001-08-15
EP0920932B1 (en) 2001-08-08
ES2162380T3 (en) 2001-12-16
EP0920932A1 (en) 1999-06-09
DE19747607A1 (en) 1999-05-06

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee