EP0677342A3 - Procédé et dispositif pour cintrer des pièces à usiner à profil creux. - Google Patents

Procédé et dispositif pour cintrer des pièces à usiner à profil creux. Download PDF

Info

Publication number
EP0677342A3
EP0677342A3 EP95890082A EP95890082A EP0677342A3 EP 0677342 A3 EP0677342 A3 EP 0677342A3 EP 95890082 A EP95890082 A EP 95890082A EP 95890082 A EP95890082 A EP 95890082A EP 0677342 A3 EP0677342 A3 EP 0677342A3
Authority
EP
European Patent Office
Prior art keywords
die
tube
work pieces
hollow section
section work
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
EP95890082A
Other languages
German (de)
English (en)
Other versions
EP0677342A2 (fr
EP0677342B1 (fr
Inventor
Gerfried Ing Auer
Ernst Dr Bitsche
Alfred Poetsch
Alexander Dr Renner
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.)
ERNE FITTINGS GMBH
Original Assignee
Erne-Fittings & Co GmbH
Erne Fittings & Co GmbH
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 Erne-Fittings & Co GmbH, Erne Fittings & Co GmbH filed Critical Erne-Fittings & Co GmbH
Publication of EP0677342A2 publication Critical patent/EP0677342A2/fr
Publication of EP0677342A3 publication Critical patent/EP0677342A3/fr
Application granted granted Critical
Publication of EP0677342B1 publication Critical patent/EP0677342B1/fr
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
    • B21D9/00—Bending tubes using mandrels or the like
    • B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
    • B21D9/03—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length and built-up from loose elements, e.g. series of balls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP95890082A 1994-04-12 1995-04-10 Procédé et dispositif pour cintrer des pièces à usiner à profil creux Expired - Lifetime EP0677342B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT747/94 1994-04-12
AT0074794A AT402479B (de) 1994-04-12 1994-04-12 Verfahren und vorrichtung zum biegen von hohlprofil-werkstücken

Publications (3)

Publication Number Publication Date
EP0677342A2 EP0677342A2 (fr) 1995-10-18
EP0677342A3 true EP0677342A3 (fr) 1996-01-17
EP0677342B1 EP0677342B1 (fr) 1998-09-23

Family

ID=3498745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95890082A Expired - Lifetime EP0677342B1 (fr) 1994-04-12 1995-04-10 Procédé et dispositif pour cintrer des pièces à usiner à profil creux

Country Status (3)

Country Link
EP (1) EP0677342B1 (fr)
AT (2) AT402479B (fr)
DE (1) DE59503656D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10625322B2 (en) 2015-04-01 2020-04-21 Blm S.P.A. Apparatus for improving the quality of tube bending and method that uses such apparatus
CN109821945B (zh) * 2019-03-18 2020-06-23 燕山大学 一种金属管材弯曲装置
CN110576089B (zh) * 2019-08-05 2020-08-21 中国科学院金属研究所 颗粒填料辅助大口径小弯曲半径薄壁弯管推弯成形方法
CN114210789A (zh) * 2021-11-05 2022-03-22 佛山市永恒液压机械有限公司 一种管件绕弯成型工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH373340A (fr) * 1959-11-12 1963-11-30 Erhmon Armstrong David Procédé pour la conformation et le calibrage à froid d'un article tubulaire coudé et appareil pour sa mise en oeuvre
DE2008917A1 (de) * 1970-02-26 1971-09-16 Schulz, Wilhelm, 4150 Krefeld Verfahren zur Herstellung nahtloser Rohrbogen
DE2358756A1 (de) * 1973-08-30 1975-03-20 Ind Meccanica Brevetti Pedrazz Rohrbiegedorn
EP0432347A1 (fr) * 1989-12-11 1991-06-19 Kabushiki Kaisha Asahi Kinzoku Kogyosho Méthode pour la manufacture d'un tube coudé et dispositif pour l'exécution

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119626A (en) * 1980-02-22 1981-09-19 Hitachi Ltd Pipe bending machine
US4542637A (en) * 1983-11-21 1985-09-24 Bending Products, Inc. Tube bending mandrel
JPS60148627A (ja) * 1984-01-13 1985-08-05 Mitsubishi Heavy Ind Ltd 管の曲げ加工方法
DE4103081A1 (de) * 1991-02-01 1992-08-06 Eichelberg & Co Gmbh H D Verfahren zum hydrostatischen umformen von hohlkoerpern aus kaltumformbarem metall und vorrichtung zur durchfuehrung des verfahrens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH373340A (fr) * 1959-11-12 1963-11-30 Erhmon Armstrong David Procédé pour la conformation et le calibrage à froid d'un article tubulaire coudé et appareil pour sa mise en oeuvre
DE2008917A1 (de) * 1970-02-26 1971-09-16 Schulz, Wilhelm, 4150 Krefeld Verfahren zur Herstellung nahtloser Rohrbogen
DE2358756A1 (de) * 1973-08-30 1975-03-20 Ind Meccanica Brevetti Pedrazz Rohrbiegedorn
EP0432347A1 (fr) * 1989-12-11 1991-06-19 Kabushiki Kaisha Asahi Kinzoku Kogyosho Méthode pour la manufacture d'un tube coudé et dispositif pour l'exécution

Also Published As

Publication number Publication date
EP0677342A2 (fr) 1995-10-18
EP0677342B1 (fr) 1998-09-23
ATE171404T1 (de) 1998-10-15
DE59503656D1 (de) 1998-10-29
AT402479B (de) 1997-05-26
ATA74794A (de) 1996-10-15

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