CS311591A3 - Method of fastening a continuously rolled perforated workpiece on a non-shouldered, optionally a shouldered cylindrical mandrel rod and apparatus for making the same - Google Patents

Method of fastening a continuously rolled perforated workpiece on a non-shouldered, optionally a shouldered cylindrical mandrel rod and apparatus for making the same

Info

Publication number
CS311591A3
CS311591A3 CS913115A CS311591A CS311591A3 CS 311591 A3 CS311591 A3 CS 311591A3 CS 913115 A CS913115 A CS 913115A CS 311591 A CS311591 A CS 311591A CS 311591 A3 CS311591 A3 CS 311591A3
Authority
CS
Czechoslovakia
Prior art keywords
shouldered
fastening
optionally
making
same
Prior art date
Application number
CS913115A
Other languages
Czech (cs)
Inventor
Karl-Hermann Bub
Dietrich Dipl Ing Dedecke
Horst Dipl Ing Dr Wagener
Original Assignee
Benteler Werke 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 Benteler Werke Ag filed Critical Benteler Werke Ag
Publication of CS311591A3 publication Critical patent/CS311591A3/en
Publication of CZ278054B6 publication Critical patent/CZ278054B6/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
    • B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles by means of mandrels
    • B21C1/26—Push-bench drawing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Articles (AREA)
  • Extrusion Of Metal (AREA)
CS913115A 1990-12-10 1991-10-14 Method of fastening a continuously rolled perforated workpiece on a non-shouldered, optionally a shouldered cylindrical mandrel rod and apparatus for making the same CZ278054B6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4039369A DE4039369C1 (en) 1990-12-10 1990-12-10 Prodn. of metal tubes - involves cooling mandrel head and allowing thermal expansion to increase tube ID

Publications (2)

Publication Number Publication Date
CS311591A3 true CS311591A3 (en) 1992-06-17
CZ278054B6 CZ278054B6 (en) 1993-07-14

Family

ID=6419982

Country Status (4)

Country Link
CZ (1) CZ278054B6 (en)
DE (1) DE4039369C1 (en)
IT (1) IT1250126B (en)
SK (1) SK278885B6 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112474871B (en) * 2020-09-27 2022-06-10 太原科技大学 Push rolling process of high-performance short-flow ribbed magnesium alloy seamless pipe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3642769C1 (en) * 1986-12-15 1987-07-16 Benteler Werke Ag Method and apparatus for rolling a pierced blank into a tube blank

Also Published As

Publication number Publication date
ITRM910804A0 (en) 1991-10-24
ITRM910804A1 (en) 1993-04-24
IT1250126B (en) 1995-03-30
CZ278054B6 (en) 1993-07-14
DE4039369C1 (en) 1991-09-19
SK278885B6 (en) 1998-04-08

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Legal Events

Date Code Title Description
IF00 In force as of 2000-06-30 in czech republic
MM4A Patent lapsed due to non-payment of fee

Effective date: 20011014