AU2001237229A1 - Method and forming tool for the production of cylindrical tubes by extrusion - Google Patents

Method and forming tool for the production of cylindrical tubes by extrusion

Info

Publication number
AU2001237229A1
AU2001237229A1 AU2001237229A AU3722901A AU2001237229A1 AU 2001237229 A1 AU2001237229 A1 AU 2001237229A1 AU 2001237229 A AU2001237229 A AU 2001237229A AU 3722901 A AU3722901 A AU 3722901A AU 2001237229 A1 AU2001237229 A1 AU 2001237229A1
Authority
AU
Australia
Prior art keywords
slug
drawing die
extrusion
die
cylindrical
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.)
Abandoned
Application number
AU2001237229A
Inventor
Gunther Friedhelm
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.)
SCHMITTERSYSCO GmbH
Original Assignee
Tubetec Rohrkomponenten 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 Tubetec Rohrkomponenten GmbH filed Critical Tubetec Rohrkomponenten GmbH
Publication of AU2001237229A1 publication Critical patent/AU2001237229A1/en
Abandoned 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
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels
    • 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
    • B21C37/30—Finishing tubes, e.g. sizing, burnishing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Extrusion Of Metal (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

The invention relates to a method for producing cylindrical tubes by plastically deforming a hollow-cylindrical slug (3) by extrusion to a cylindrical tube. According to the inventive method, the slug is introduced into a substantially cylindrical drawing die (2) up to a stop (4). A drawing mandrel (6) that has an outer diameter that is larger than the inner diameter of the slug is moved in the drawing die through the hollow space of the slug. Due to the flowing of the slug material pressed by the drawing mandrel, the length of the slug increases while the cross-section of the wall of the slug is reduced. The inner diameter of the drawing die and the outer diameter of the slug are chosen such that there is a radial play between the drawing die and the slug. When the drawing mandrel is drawn through the drawing die, the wall of the slug is radially pressed against the die, thereby expanding the outer diameter of the slug.
AU2001237229A 2000-01-28 2001-01-19 Method and forming tool for the production of cylindrical tubes by extrusion Abandoned AU2001237229A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10004732 2000-01-28
DE10004732 2000-01-28
PCT/DE2001/000227 WO2001054839A1 (en) 2000-01-28 2001-01-19 Method and forming tool for the production of cylindrical tubes by extrusion

Publications (1)

Publication Number Publication Date
AU2001237229A1 true AU2001237229A1 (en) 2001-08-07

Family

ID=7629699

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001237229A Abandoned AU2001237229A1 (en) 2000-01-28 2001-01-19 Method and forming tool for the production of cylindrical tubes by extrusion

Country Status (5)

Country Link
EP (1) EP1250199B1 (en)
AT (1) ATE245499T1 (en)
AU (1) AU2001237229A1 (en)
DE (2) DE50100414D1 (en)
WO (1) WO2001054839A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019103926A1 (en) * 2019-02-15 2020-08-20 Walter Henrich GmbH Method and device for the axial forming of a pipe
CN111069445B (en) * 2019-11-27 2021-03-02 江阴和宏精工科技有限公司 Wall thickness control method for expanding and drawing copper pipe
CN117732900B (en) * 2024-01-02 2024-07-02 浙江三基钢管有限公司 Cold drawing equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE466434C (en) * 1928-10-16 Siegener Eisenbahnbedarf Akt G Process for the precise internal drawing of hollow bodies
GB922266A (en) * 1962-01-08 1963-03-27 Joseph Wilson Yowell Improvements in or relating to the production of tubes
FR1528079A (en) * 1967-04-28 1968-06-07 Nippon Denso Co Process for finishing the casings of electric motors
DE2401345A1 (en) * 1974-01-09 1975-07-10 Mannesmann Roehren Werke Ag DRAWING-STRETCHING PROCESS FOR THE PRODUCTION OF LONG TUBES AND DEVICE FOR CARRYING OUT THE PROCESS

Also Published As

Publication number Publication date
EP1250199B1 (en) 2003-07-23
DE50100414D1 (en) 2003-08-28
ATE245499T1 (en) 2003-08-15
DE10190194D2 (en) 2003-02-20
WO2001054839A1 (en) 2001-08-02
EP1250199A1 (en) 2002-10-23

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