JPS57130719A - Hot extrusion forming method for inside stepped tube - Google Patents

Hot extrusion forming method for inside stepped tube

Info

Publication number
JPS57130719A
JPS57130719A JP1463381A JP1463381A JPS57130719A JP S57130719 A JPS57130719 A JP S57130719A JP 1463381 A JP1463381 A JP 1463381A JP 1463381 A JP1463381 A JP 1463381A JP S57130719 A JPS57130719 A JP S57130719A
Authority
JP
Japan
Prior art keywords
stepped tube
mandrel
hot extrusion
concavity
small diameter
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
JP1463381A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6354447B2 (2
Inventor
Yukio Iwasaki
Masao Nakada
Munekatsu Furukata
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP1463381A priority Critical patent/JPS57130719A/ja
Publication of JPS57130719A publication Critical patent/JPS57130719A/ja
Publication of JPS6354447B2 publication Critical patent/JPS6354447B2/ja
Granted 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, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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, rods or tubes
    • B21C23/085—Making tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
JP1463381A 1981-02-02 1981-02-02 Hot extrusion forming method for inside stepped tube Granted JPS57130719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1463381A JPS57130719A (en) 1981-02-02 1981-02-02 Hot extrusion forming method for inside stepped tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1463381A JPS57130719A (en) 1981-02-02 1981-02-02 Hot extrusion forming method for inside stepped tube

Publications (2)

Publication Number Publication Date
JPS57130719A true JPS57130719A (en) 1982-08-13
JPS6354447B2 JPS6354447B2 (2) 1988-10-28

Family

ID=11866592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1463381A Granted JPS57130719A (en) 1981-02-02 1981-02-02 Hot extrusion forming method for inside stepped tube

Country Status (1)

Country Link
JP (1) JPS57130719A (2)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103567249A (zh) * 2013-10-31 2014-02-12 中北大学 一种大型长锥喇叭筒件的挤压成形组合模具
WO2019001635A1 (de) * 2017-06-28 2019-01-03 Technische Universität Berlin Brückenwerkzeug zur erzeugung von strangpressprofilen mit variierendem querschnitt
TWI680023B (zh) * 2018-11-27 2019-12-21 國立中山大學 金屬管擠製模具

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103567249A (zh) * 2013-10-31 2014-02-12 中北大学 一种大型长锥喇叭筒件的挤压成形组合模具
WO2019001635A1 (de) * 2017-06-28 2019-01-03 Technische Universität Berlin Brückenwerkzeug zur erzeugung von strangpressprofilen mit variierendem querschnitt
CN110891704A (zh) * 2017-06-28 2020-03-17 柏林工业大学 生产具有不同横截面的挤出型材的桥式挤出模工具
CN110891704B (zh) * 2017-06-28 2022-04-22 柏林工业大学 生产具有不同横截面的挤出型材的桥式挤出模工具
TWI680023B (zh) * 2018-11-27 2019-12-21 國立中山大學 金屬管擠製模具

Also Published As

Publication number Publication date
JPS6354447B2 (2) 1988-10-28

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