JPS6358661B2 - - Google Patents

Info

Publication number
JPS6358661B2
JPS6358661B2 JP4760481A JP4760481A JPS6358661B2 JP S6358661 B2 JPS6358661 B2 JP S6358661B2 JP 4760481 A JP4760481 A JP 4760481A JP 4760481 A JP4760481 A JP 4760481A JP S6358661 B2 JPS6358661 B2 JP S6358661B2
Authority
JP
Japan
Prior art keywords
mold
cylindrical body
punch
cold forging
ejector
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
JP4760481A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57160543A (en
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 filed Critical
Priority to JP4760481A priority Critical patent/JPS57160543A/ja
Publication of JPS57160543A publication Critical patent/JPS57160543A/ja
Publication of JPS6358661B2 publication Critical patent/JPS6358661B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • B21K21/08—Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
JP4760481A 1981-03-31 1981-03-31 Cold forging method of hollow cylindrical body Granted JPS57160543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4760481A JPS57160543A (en) 1981-03-31 1981-03-31 Cold forging method of hollow cylindrical body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4760481A JPS57160543A (en) 1981-03-31 1981-03-31 Cold forging method of hollow cylindrical body

Publications (2)

Publication Number Publication Date
JPS57160543A JPS57160543A (en) 1982-10-02
JPS6358661B2 true JPS6358661B2 (enrdf_load_stackoverflow) 1988-11-16

Family

ID=12779835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4760481A Granted JPS57160543A (en) 1981-03-31 1981-03-31 Cold forging method of hollow cylindrical body

Country Status (1)

Country Link
JP (1) JPS57160543A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0232957U (enrdf_load_stackoverflow) * 1988-08-19 1990-03-01

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59199142A (ja) * 1983-04-27 1984-11-12 Tokai Rika Co Ltd 中空筒体の冷間鍛造法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0232957U (enrdf_load_stackoverflow) * 1988-08-19 1990-03-01

Also Published As

Publication number Publication date
JPS57160543A (en) 1982-10-02

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