Title:
MANUFACTURING METHOD OF SHAFT LIKE PART
Document Type and Number:
Japanese Patent JP3543771
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve a working precision, to reduce working force and to shorten a working time in a manufacturing method of shaft like parts.
SOLUTION: When manufacturing a clock winding rod by combining a forging process and a form rolling process, in the form rolling process, a term to work a groove part 13 and a term to work a small diameter part 11 are set in a different term. For the purpose, a small diameter part 11 is worked at a small diameter working part 28' of a flat die after finishing reducing work at a reducing part 25'.
Inventors:
矢▲崎▼ 哲哉
Application Number:
JP2001051177A
Publication Date:
July 21, 2004
Filing Date:
August 29, 1994
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G04B3/04; B21H1/00; B21H1/18; B21H3/06; B21J1/04; B21J13/02; B21K1/06; G04D3/00; (IPC1-7): B21H1/00; B21H3/06; B21J1/04; B21K1/06; G04B3/04; G04D3/00
Domestic Patent References:
| JP2307641A | ||||
| JP57115934A |
Attorney, Agent or Firm:
Masahiko Ueyanagi
Osamu Suzawa
Osamu Suzawa
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