EP0372360A3 - Method of making tubular construction parts - Google Patents

Method of making tubular construction parts Download PDF

Info

Publication number
EP0372360A3
EP0372360A3 EP19890121939 EP89121939A EP0372360A3 EP 0372360 A3 EP0372360 A3 EP 0372360A3 EP 19890121939 EP19890121939 EP 19890121939 EP 89121939 A EP89121939 A EP 89121939A EP 0372360 A3 EP0372360 A3 EP 0372360A3
Authority
EP
European Patent Office
Prior art keywords
tubular components
pipe
subjected
sheet
expanded
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.)
Withdrawn
Application number
EP19890121939
Other languages
German (de)
French (fr)
Other versions
EP0372360A2 (en
Inventor
Rainer Dipl.-Ing. Kuhn
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.)
Individual
Original Assignee
Individual
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 DE19883840938 external-priority patent/DE3840938A1/en
Application filed by Individual filed Critical Individual
Publication of EP0372360A2 publication Critical patent/EP0372360A2/en
Publication of EP0372360A3 publication Critical patent/EP0372360A3/en
Withdrawn legal-status Critical Current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
    • B21D26/033—Deforming tubular 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
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
    • 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
    • B21D53/00—Making other particular articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Herstellung von rohrartigen Bauteilen, wobei ausgehend von einem Blech ein Rohr geformt und die beiden Enden miteinander verschweißt werden sowie das so erhaltene Rohr einem Expandierprozeß unterworfen wird. The invention relates to a method for producing tubular components, starting from a sheet a tube shaped and the two ends together are welded and the pipe thus obtained one Expansion process is subjected.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung von rohrartigen Bauteilen zu schaffen, mit dem kostengünstig und betriebssicher qualitativ hochwertige rohrartige Bauteile für beispielsweise Backröhren hergetellt werden können. The invention has for its object a method to create tubular components, with the inexpensive and reliable quality high quality tubular components for example Ovens can be made.

Die Erfindung besteht im wesentlichen darin, daß vor dem Expandierprozeß das Rohr mechanisch vorexpandiert und daß das vorexpandierte Rohr unter Abdichtung seiner beiden Enden verschlossen einem Hydroform-Expandierprozeß unterworfen wird. The invention consists essentially in that before Expanding process mechanically pre-expanded the pipe and that the pre-expanded pipe sealing both of them Ends closed with a hydroform expansion process is subjected.

Die erzielten Vorteile bestehen vor allem darin, daß bei Anwendung des Verfahrens eine erhebliche Materialersparnis hinsichtlich des herzustellenden Körpers gegeben ist und im Laufe des Herstellprozesses praktisch kein Abfall entsteht. Weiterhin ergeben sich geringe Werkzeugkosten für die Umstellung, wenn verschiedene Typen von rohrartigen Bauteilen hergestellt werden. Aus besteht kein Problem, Bleche der unterschiedlichsten Qualität, z. B. normaler Tiefziehstahl sowie austenitischer und ferritischer nicht rostender Stahl, einzusetzen, Es können auch ohne weiteres unterschiedliche Blechstärken verarbeitet werden. The main advantages are that Application of the procedure a significant Material savings in terms of what is to be manufactured Body is given and in the course of the manufacturing process practically no waste is generated. Furthermore arise low tooling costs for the changeover, though different types of tubular components will. There is no problem with sheet metal different quality, e.g. B. more normal Deep drawing steel as well as austenitic and ferritic not rusting steel, can be used without processed different sheet thicknesses will.

EP19890121939 1988-12-05 1989-11-28 Method of making tubular construction parts Withdrawn EP0372360A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19883840938 DE3840938A1 (en) 1988-12-05 1988-12-05 Method for the production of tubular components
DE3840938 1988-12-05
DE3906957A DE3906957A1 (en) 1988-12-05 1989-03-04 METHOD FOR PRODUCING TUBULAR COMPONENTS
DE3906957 1989-03-04

Publications (2)

Publication Number Publication Date
EP0372360A2 EP0372360A2 (en) 1990-06-13
EP0372360A3 true EP0372360A3 (en) 1991-03-20

Family

ID=25874840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890121939 Withdrawn EP0372360A3 (en) 1988-12-05 1989-11-28 Method of making tubular construction parts

Country Status (2)

Country Link
EP (1) EP0372360A3 (en)
DE (1) DE3906957A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4201819A1 (en) * 1991-01-28 1992-07-30 Mannesmann Ag METHOD AND DEVICE FOR THE HYDRAULIC EXPANSION OF TUBULAR HOLLOW PROFILES
DE4214557A1 (en) * 1992-04-28 1993-11-04 Mannesmann Ag Method for hydraulic expansion of closed hollow profiles - processes blank, which is pre-profiled before hydraulic expansion
US6006568A (en) * 1998-03-20 1999-12-28 The Budd Company Multi-piece hydroforming tool
US6128936A (en) * 1998-09-09 2000-10-10 Kabushiki Kaisha Opton Bulging device and bulging method
DE10016025B4 (en) * 2000-03-31 2005-06-16 Hde Solutions Gmbh Process for producing hollow bodies
DE10042465C2 (en) 2000-08-29 2002-08-01 Vaw Ver Aluminium Werke Ag Process for deforming tubular hollow bodies made of metal
EP1401596B1 (en) * 2001-07-05 2007-04-11 Magna Structural Systems Inc. Method for expanding a tubular blank
DE102006012625C5 (en) * 2006-03-20 2010-06-17 Audi Ag Method for producing profiles
DE102007041314B4 (en) 2007-08-31 2014-08-21 BSH Bosch und Siemens Hausgeräte GmbH Method for producing a water-conducting domestic appliance and water-conducting household appliance

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310972A (en) * 1964-11-10 1967-03-28 Continental Can Co Moving hydraulic impulse metal forming device
CH462080A (en) * 1968-01-30 1968-09-15 Contraves Ag Verfahren und Vorrichtung zum Anformen eines Ringwulstes an einer glattmanteligen Rohrleitung
DE2131811A1 (en) * 1971-06-23 1972-12-28 Siemens Elektrogeraete Gmbh Device for deep drawing tubular workpieces
FR2156092A1 (en) * 1971-10-06 1973-05-25 Roper Corp
US3908854A (en) * 1971-05-10 1975-09-30 White Westinghouse Corp Dishwasher tub gasket surface
EP0234243A1 (en) * 1986-02-27 1987-09-02 Zeltron Istituto Zanussi Per L'elettronica S.P.A. Method for manufacturing a tub for a laundry washing machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541869A (en) * 1944-12-13 1951-02-13 Justin W Macklin Apparatus for making bellows

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310972A (en) * 1964-11-10 1967-03-28 Continental Can Co Moving hydraulic impulse metal forming device
CH462080A (en) * 1968-01-30 1968-09-15 Contraves Ag Verfahren und Vorrichtung zum Anformen eines Ringwulstes an einer glattmanteligen Rohrleitung
US3908854A (en) * 1971-05-10 1975-09-30 White Westinghouse Corp Dishwasher tub gasket surface
DE2131811A1 (en) * 1971-06-23 1972-12-28 Siemens Elektrogeraete Gmbh Device for deep drawing tubular workpieces
FR2156092A1 (en) * 1971-10-06 1973-05-25 Roper Corp
EP0234243A1 (en) * 1986-02-27 1987-09-02 Zeltron Istituto Zanussi Per L'elettronica S.P.A. Method for manufacturing a tub for a laundry washing machine

Also Published As

Publication number Publication date
DE3906957A1 (en) 1990-09-06
EP0372360A2 (en) 1990-06-13

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