JPS52147555A - Hollow billet expansion process - Google Patents

Hollow billet expansion process

Info

Publication number
JPS52147555A
JPS52147555A JP6507476A JP6507476A JPS52147555A JP S52147555 A JPS52147555 A JP S52147555A JP 6507476 A JP6507476 A JP 6507476A JP 6507476 A JP6507476 A JP 6507476A JP S52147555 A JPS52147555 A JP S52147555A
Authority
JP
Japan
Prior art keywords
expansion process
hollow billet
billet expansion
hollow
expansion
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
JP6507476A
Other languages
Japanese (ja)
Other versions
JPS5429417B2 (en
Inventor
Shigeru Wakushima
Tsuyoshi Matsumoto
Masamitsu Tamura
Shigeharu Nakamura
Kenji Hirata
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP6507476A priority Critical patent/JPS52147555A/en
Publication of JPS52147555A publication Critical patent/JPS52147555A/en
Publication of JPS5429417B2 publication Critical patent/JPS5429417B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Extrusion Of Metal (AREA)
  • Forging (AREA)
JP6507476A 1976-06-02 1976-06-02 Hollow billet expansion process Granted JPS52147555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6507476A JPS52147555A (en) 1976-06-02 1976-06-02 Hollow billet expansion process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6507476A JPS52147555A (en) 1976-06-02 1976-06-02 Hollow billet expansion process

Publications (2)

Publication Number Publication Date
JPS52147555A true JPS52147555A (en) 1977-12-08
JPS5429417B2 JPS5429417B2 (en) 1979-09-22

Family

ID=13276429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6507476A Granted JPS52147555A (en) 1976-06-02 1976-06-02 Hollow billet expansion process

Country Status (1)

Country Link
JP (1) JPS52147555A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6254538A (en) * 1985-09-03 1987-03-10 Kobe Steel Ltd Manufacture of piercing billet for manufacturing pipe by hot extrusion
CN105033142A (en) * 2015-07-10 2015-11-11 河南光大管业有限公司 Pressing die and pressing process for welding neck flange

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6254538A (en) * 1985-09-03 1987-03-10 Kobe Steel Ltd Manufacture of piercing billet for manufacturing pipe by hot extrusion
CN105033142A (en) * 2015-07-10 2015-11-11 河南光大管业有限公司 Pressing die and pressing process for welding neck flange

Also Published As

Publication number Publication date
JPS5429417B2 (en) 1979-09-22

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