GB1428210A - Forming of tubular materials by extrusion - Google Patents

Forming of tubular materials by extrusion

Info

Publication number
GB1428210A
GB1428210A GB2734773A GB2734773A GB1428210A GB 1428210 A GB1428210 A GB 1428210A GB 2734773 A GB2734773 A GB 2734773A GB 2734773 A GB2734773 A GB 2734773A GB 1428210 A GB1428210 A GB 1428210A
Authority
GB
United Kingdom
Prior art keywords
extrusion
mandrel
tube
billet
discard
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
GB2734773A
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB2734773A priority Critical patent/GB1428210A/en
Priority to SE7407313A priority patent/SE412171B/en
Priority to JP49064522A priority patent/JPS5032063A/ja
Publication of GB1428210A publication Critical patent/GB1428210A/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
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, bars, tubes
    • B21C23/085—Making tubes
    • 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
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
    • B21C35/04—Cutting-off or removing waste

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)

Abstract

1428210 Extrusion UNITED KINGDOM ATOMIC ENERGY AUTHORITY 21 May 1974 [8 June 1973] 27347/73 Heading B3P In a process of producing a tube by extrusion a mandrel 2 is used in a blind bored billet, the mandrel having a peripheral cutting edge 7 at its rear end so as to co-operate with the die 3 to sever the tube 8 from the billet discard 1. The extrusion may be effected mechanically or hydrostatically or by a combination thereof. The tube is produced with an increased bore at its rear end which aids removal of the mandrel. The discard acts as a plug in hydrostatic extrusion to prevent escape of fluid.
GB2734773A 1973-06-08 1973-06-08 Forming of tubular materials by extrusion Expired GB1428210A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2734773A GB1428210A (en) 1973-06-08 1973-06-08 Forming of tubular materials by extrusion
SE7407313A SE412171B (en) 1973-06-08 1974-06-04 SET TO STRESS A RUDE MATERIAL LENGTH
JP49064522A JPS5032063A (en) 1973-06-08 1974-06-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2734773A GB1428210A (en) 1973-06-08 1973-06-08 Forming of tubular materials by extrusion

Publications (1)

Publication Number Publication Date
GB1428210A true GB1428210A (en) 1976-03-17

Family

ID=10258116

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2734773A Expired GB1428210A (en) 1973-06-08 1973-06-08 Forming of tubular materials by extrusion

Country Status (1)

Country Link
GB (1) GB1428210A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee