EP0933146A3 - Method and device for forming workpieces by restructuring their surfaces - Google Patents

Method and device for forming workpieces by restructuring their surfaces Download PDF

Info

Publication number
EP0933146A3
EP0933146A3 EP98250448A EP98250448A EP0933146A3 EP 0933146 A3 EP0933146 A3 EP 0933146A3 EP 98250448 A EP98250448 A EP 98250448A EP 98250448 A EP98250448 A EP 98250448A EP 0933146 A3 EP0933146 A3 EP 0933146A3
Authority
EP
European Patent Office
Prior art keywords
forming
work piece
forces
absorbed
contour
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
EP98250448A
Other languages
German (de)
French (fr)
Other versions
EP0933146B1 (en
EP0933146A2 (en
Inventor
Udo Prof Dr.-Ing Hellwig
Hans-Joachim Dr. Haase
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.)
Hellwig Udo Prof Dr
Original Assignee
Hellwig Udo Prof Dr
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
Priority claimed from DE1998103782 external-priority patent/DE19803782B4/en
Priority claimed from DE29819194U external-priority patent/DE29819194U1/en
Application filed by Hellwig Udo Prof Dr filed Critical Hellwig Udo Prof Dr
Priority to DK98250448T priority Critical patent/DK0933146T3/en
Publication of EP0933146A2 publication Critical patent/EP0933146A2/en
Publication of EP0933146A3 publication Critical patent/EP0933146A3/en
Application granted granted Critical
Publication of EP0933146B1 publication Critical patent/EP0933146B1/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
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/156—Making tubes with wall irregularities
    • B21C37/158—Protrusions, e.g. dimples

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Forging (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The method uses forces, partially directed onto the workpiece. Power introduction to a selected part of the work piece is retained for the period required to finish partial forming to selected contour. After removal of the forming force, the return force in the contour of the formed work piece section is absorbed by the work piece. During the process, alternating concave sole areas and convex crest areas are formed. The forming forces are absorbed by static forces generated in the surface structure.
EP98250448A 1998-01-22 1998-12-23 Method for forming workpieces by restructuring their surfaces Expired - Lifetime EP0933146B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK98250448T DK0933146T3 (en) 1998-01-22 1998-12-23 Process of forming items by structuring transformation of their surface contours

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19803782 1998-01-22
DE1998103782 DE19803782B4 (en) 1998-01-22 1998-01-22 Method and device for shaping bodies by means of secondary forming transformation
DE29819194U 1998-10-28
DE29819194U DE29819194U1 (en) 1998-10-28 1998-10-28 Device for uniformly deforming the surfaces of hollow-profiled, rotationally symmetrical workpieces

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP03023480 Division 2003-10-18

Publications (3)

Publication Number Publication Date
EP0933146A2 EP0933146A2 (en) 1999-08-04
EP0933146A3 true EP0933146A3 (en) 2001-04-18
EP0933146B1 EP0933146B1 (en) 2004-08-25

Family

ID=26043496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98250448A Expired - Lifetime EP0933146B1 (en) 1998-01-22 1998-12-23 Method for forming workpieces by restructuring their surfaces

Country Status (5)

Country Link
EP (1) EP0933146B1 (en)
AT (1) ATE274383T1 (en)
DE (1) DE59811867D1 (en)
DK (1) DK0933146T3 (en)
PT (1) PT933146E (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002076700A1 (en) * 2001-03-26 2002-10-03 Machine Solutions, Inc. Balloon folding technology
DE202007014218U1 (en) 2007-10-10 2008-07-10 Hellwig, Udo, Prof. Dr.-Ing. Device for tempering liquid or gaseous media in solar-thermal plants

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203078A (en) * 1963-01-04 1965-08-31 Buchanan Electrical Prod Corp Method of making an electrical connection
FR2018559A1 (en) * 1968-09-20 1970-05-29 Little Inc A
FR2152349A1 (en) * 1971-09-06 1973-04-27 Dallet Jean
FR2348762A1 (en) * 1976-04-23 1977-11-18 Peyronnet Jean Manual pincers for fixing ferrules to flexible pipes - has pawls connected to two plates for crimping fixing ring over pipe and ferrule
US5261263A (en) * 1992-12-21 1993-11-16 Whitesell Eric J Crimping pliers with radially opposed jaws
DE4401974A1 (en) * 1993-04-06 1995-07-27 Frank Prof Dr Mirtsch Buckling method and apparatus
DE19711103A1 (en) * 1997-03-06 1998-09-10 Udo Prof Dr Hellwig Components deforming method by magnetic structuring

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203078A (en) * 1963-01-04 1965-08-31 Buchanan Electrical Prod Corp Method of making an electrical connection
FR2018559A1 (en) * 1968-09-20 1970-05-29 Little Inc A
FR2152349A1 (en) * 1971-09-06 1973-04-27 Dallet Jean
FR2348762A1 (en) * 1976-04-23 1977-11-18 Peyronnet Jean Manual pincers for fixing ferrules to flexible pipes - has pawls connected to two plates for crimping fixing ring over pipe and ferrule
US5261263A (en) * 1992-12-21 1993-11-16 Whitesell Eric J Crimping pliers with radially opposed jaws
DE4401974A1 (en) * 1993-04-06 1995-07-27 Frank Prof Dr Mirtsch Buckling method and apparatus
DE19711103A1 (en) * 1997-03-06 1998-09-10 Udo Prof Dr Hellwig Components deforming method by magnetic structuring

Also Published As

Publication number Publication date
EP0933146B1 (en) 2004-08-25
DK0933146T3 (en) 2005-01-03
PT933146E (en) 2005-01-31
DE59811867D1 (en) 2004-09-30
ATE274383T1 (en) 2004-09-15
EP0933146A2 (en) 1999-08-04

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