GB1006973A - Cold drawing equipment for metal pipes - Google Patents

Cold drawing equipment for metal pipes

Info

Publication number
GB1006973A
GB1006973A GB23202/62A GB2320262A GB1006973A GB 1006973 A GB1006973 A GB 1006973A GB 23202/62 A GB23202/62 A GB 23202/62A GB 2320262 A GB2320262 A GB 2320262A GB 1006973 A GB1006973 A GB 1006973A
Authority
GB
United Kingdom
Prior art keywords
mandrel
tube
ball
nut
june
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.)
Expired
Application number
GB23202/62A
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.)
Outokumpu Stainless AB
Original Assignee
Avesta Jernverks AB
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 Avesta Jernverks AB filed Critical Avesta Jernverks AB
Publication of GB1006973A publication Critical patent/GB1006973A/en
Expired 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
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/02—Dies; Selection of material therefor; Cleaning thereof
    • B21C3/12—Die holders; Rotating dies
    • B21C3/14—Die holders combined with devices for guiding the drawing material or combined with devices for cooling heating, or lubricating
    • 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
    • B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
    • B21C3/16—Mandrels; Mounting or adjusting same
    • 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
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
    • B21C37/0811—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off removing or treating the weld bead

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)

Abstract

1,006,973. Drawing mandrels. AVESTA JERNVERKS A.B. June 15, 1962 [June 30, 1961], No. 23202/62. Heading B3P. A drawing mandrel of hard metal is provided with a steel extension which remains in the tube when the mandrel is pulled out at the end of the drawing operation, and prevents rapid lateral movements of the mandrel. The mandrel 10 is fitted on to the pull rod 12 and is retained by a hardened steel nut 15. The free end of the nut is formed to a ball 15 of slightly smaller diameter than the mandrel. The tube 16 is drawn over the mandrel and through a die 17. A tube guide 18 is positioned opposite the ball 15, and has a diameter equal to or slightly larger than the outside diameter of the tube. The mandrel 10 may be a push fit or a force fit on the pull rod 12 and there is a soldered joint 14 between the nut 13 and the mandrel. At the end of the drawing operation, when due to the elastic contraction of the tube and pull-rod the mandrel suddenly leaves the end of the tube, the ball 15 remains within the tube. In a modification the ball 15 is slightly larger than the bore of the tube and is slit to form a plurality of resilient segments. In a second modification the guide 18 is used as a second drawing die, and the end of the nut is made parallel and acts as a second drawing mandrel. The strength of the soldered joint 14 may be increased by making the mating faces conical in form. The mandrel 10 may be formed with a sharp leading edge to remove weld or burrs from the inside of the tube.
GB23202/62A 1961-06-30 1962-06-15 Cold drawing equipment for metal pipes Expired GB1006973A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE683861 1961-06-30

Publications (1)

Publication Number Publication Date
GB1006973A true GB1006973A (en) 1965-10-06

Family

ID=20269723

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23202/62A Expired GB1006973A (en) 1961-06-30 1962-06-15 Cold drawing equipment for metal pipes

Country Status (4)

Country Link
US (1) US3155229A (en)
AT (1) AT241398B (en)
CH (1) CH394997A (en)
GB (1) GB1006973A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111922105A (en) * 2020-06-01 2020-11-13 广东和胜工业铝材股份有限公司 Pipe drawing die and drawing process

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292407A (en) * 1964-06-18 1966-12-20 Bruce B Krost Tube drawing apparatus
US3487673A (en) * 1967-03-06 1970-01-06 Calumet & Hecla Corp Form drawing of fluted tubing
EP2241386A1 (en) * 2009-04-16 2010-10-20 Felss GmbH Reforming tool for creating an internal profile, in particular an internal gear of a workpiece
CN103748520A (en) * 2011-08-19 2014-04-23 昭和电工株式会社 Substrate for photosensitive drum
DE102019112547A1 (en) * 2019-05-14 2020-11-19 Felss Systems Gmbh Processing unit and processing machine for processing a workpiece on a workpiece wall and a method for producing a processing unit of the type mentioned

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1166040A (en) * 1915-03-28 1915-12-28 William Burlingham Apparatus for lining tubes.
DE522161C (en) * 1928-06-13 1931-04-01 Max Bittersmann Device for cold drawing of metal pipes
US1928227A (en) * 1931-08-06 1933-09-26 Allegheny Steel Co Double reduction one-pass
DE936084C (en) * 1953-04-16 1955-12-07 Kronprinz Ag Device for the production of pipes from longitudinally welded output pipes to be subjected to a drawing process with a device for removing the weld burr

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111922105A (en) * 2020-06-01 2020-11-13 广东和胜工业铝材股份有限公司 Pipe drawing die and drawing process

Also Published As

Publication number Publication date
CH394997A (en) 1965-07-15
AT241398B (en) 1965-07-26
US3155229A (en) 1964-11-03

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