EP0392644A3 - Verfahren zur Beseitigung von Längsstauchnähten - Google Patents

Verfahren zur Beseitigung von Längsstauchnähten Download PDF

Info

Publication number
EP0392644A3
EP0392644A3 EP19900250089 EP90250089A EP0392644A3 EP 0392644 A3 EP0392644 A3 EP 0392644A3 EP 19900250089 EP19900250089 EP 19900250089 EP 90250089 A EP90250089 A EP 90250089A EP 0392644 A3 EP0392644 A3 EP 0392644A3
Authority
EP
European Patent Office
Prior art keywords
upsetting
pressed
shells
tube
supporting mandrel
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
EP19900250089
Other languages
English (en)
French (fr)
Other versions
EP0392644A2 (de
EP0392644B1 (de
Inventor
Michael Johann Schindler
Wulff-Eckhard Von Borcke
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Priority to AT90250089T priority Critical patent/ATE99578T1/de
Publication of EP0392644A2 publication Critical patent/EP0392644A2/de
Publication of EP0392644A3 publication Critical patent/EP0392644A3/de
Application granted granted Critical
Publication of EP0392644B1 publication Critical patent/EP0392644B1/de
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
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08—Upsetting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Press Drives And Press Lines (AREA)
  • Processing Of Solid Wastes (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Beseitigung von Längsstauchnähten, die sich bei der Warmanstauchung von Rohrenden mittels paarweise zusammengepreßter Stauch­ halbschalen und einem axial drückenden, einen Stoßkragen aufweisenden Stützdorn bilden. Um ein Verfahren anzugeben, das in den Fertigungsprozeß integrierbar ist und mit dem in einfacher und kostengünstiger Weise die sich bei der Warmanstauchung von Rohrenden gebildeten Längsstauchnähte beseitigt werden können, so daß mit der besseren Ober­ fläche die nachfolgende maßliche Bearbeitung qualitäts- und leistungsmäßig gesteigert werden kann und die Dauerfestig­ keit hochbeanspruchter Rohrverbindungen nicht gemindert wird, wird vorgeschlagen, daß unmittelbar nach Beendigung des Stauchprozesses die zusammengepreßten Stauchhalb­ schalen geöffnet und der Stützdorn zurückgezogen wird und nach dem Herausheben des Rohrendes aus dem Werkzeug die sich gebildeten Längsstauchnähte um einen vorgege­ benen Winkelbetrag aus der Teilungsebene der Stauchhalb­ schale bewegt werden und anschließend das Rohrende unter Einhaltung seiner vormals axialen Stellung zum Werkzeug erneut in die Arbeitsebene gedrückt und nach Einfahren des Stützdornes radial nachgepreßt wird, ohne daß der Stoßkragen dabei axiale Stauchkräfte ausübt.
EP90250089A 1989-04-12 1990-04-03 Verfahren zur Beseitigung von Längsstauchnähten Expired - Lifetime EP0392644B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90250089T ATE99578T1 (de) 1989-04-12 1990-04-03 Verfahren zur beseitigung von laengsstauchnaehten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3912423A DE3912423C1 (de) 1989-04-12 1989-04-12
DE3912423 1989-04-12

Publications (3)

Publication Number Publication Date
EP0392644A2 EP0392644A2 (de) 1990-10-17
EP0392644A3 true EP0392644A3 (de) 1991-07-03
EP0392644B1 EP0392644B1 (de) 1994-01-05

Family

ID=6378756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90250089A Expired - Lifetime EP0392644B1 (de) 1989-04-12 1990-04-03 Verfahren zur Beseitigung von Längsstauchnähten

Country Status (6)

Country Link
US (1) US5050419A (de)
EP (1) EP0392644B1 (de)
JP (1) JPH02295630A (de)
AT (1) ATE99578T1 (de)
DE (2) DE3912423C1 (de)
ES (1) ES2047835T3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003013959A (ja) * 2001-06-28 2003-01-15 Koyo Seiko Co Ltd 転がり軸受用鋼球とその製造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2074104A (en) * 1933-09-13 1937-03-16 William W Criley Blank turning and transfer mechanism
GB722765A (en) * 1953-09-11 1955-01-26 Samuel Smith Improvements connected with swaging machines
AT366938B (de) * 1980-12-22 1982-05-25 Gfm Fertigungstechnik Verfahren zum herstellen oertlicher mantelverst[rkungen an hohlkoerpern
EP0299948A2 (de) * 1987-06-12 1989-01-18 BÖHLER Gesellschaft m.b.H. Verfahren und Schmiedemaschine zur Herstellung von Verbundkörpern

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2027406A (en) * 1930-02-21 1936-01-14 Clark Equipment Co Forging means
US2212903A (en) * 1937-09-20 1940-08-27 Albert B Steigerwalt Method of manufacturing axles and the like
US3570298A (en) * 1968-09-24 1971-03-16 Hermann Detzel Forging

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2074104A (en) * 1933-09-13 1937-03-16 William W Criley Blank turning and transfer mechanism
GB722765A (en) * 1953-09-11 1955-01-26 Samuel Smith Improvements connected with swaging machines
AT366938B (de) * 1980-12-22 1982-05-25 Gfm Fertigungstechnik Verfahren zum herstellen oertlicher mantelverst[rkungen an hohlkoerpern
EP0299948A2 (de) * 1987-06-12 1989-01-18 BÖHLER Gesellschaft m.b.H. Verfahren und Schmiedemaschine zur Herstellung von Verbundkörpern

Also Published As

Publication number Publication date
JPH02295630A (ja) 1990-12-06
ATE99578T1 (de) 1994-01-15
US5050419A (en) 1991-09-24
DE59004081D1 (de) 1994-02-17
ES2047835T3 (es) 1994-03-01
DE3912423C1 (de) 1990-05-10
EP0392644A2 (de) 1990-10-17
EP0392644B1 (de) 1994-01-05

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