Title:
円筒軸の製造方法
Document Type and Number:
Japanese Patent JP5510139
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a cylindrical shaft having a stable shape.SOLUTION: The method for manufacturing a cylindrical shaft includes: a press punching step of punching out a cylindrical shaft formation member 60 from a metallic plate by a press; a cylindrically bending step of forming the cylindrical shaft by bending the cylindrical shaft formation member 60 in a cylindrical shape so that a pair of end faces 61a, 61b of the cylindrical shaft formation member 60 close to or come into contact with each other; and a stress adjustment step of applying an external force to the cylindrical shaft to adjust a residual stress in the cylindrical shaft. In one or both of the press punching step and the cylindrically bending step, a stress balancing process for balancing the stress state between lateral parts 62a, 62b and a center part 61c is performed when processing the lateral parts 62a, 62b including the pair of end faces 61a, 61b.
More Like This:
Inventors:
Kenji Ozawa
Blue willow Kenji
Koichi Saito
Katsunori Ohno
Blue willow Kenji
Koichi Saito
Katsunori Ohno
Application Number:
JP2010157813A
Publication Date:
June 04, 2014
Filing Date:
July 12, 2010
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
B21D5/01; B21D3/02; B21D51/16; B41J13/02; B65H5/06
Domestic Patent References:
| JP2006289496A | ||||
| JP9308910A | ||||
| JP8187516A | ||||
| JP2006272457A | ||||
| JP9169450A | ||||
| JP2010137849A | ||||
| JP2007276898A |
Attorney, Agent or Firm:
Masatake Shiga
Kazunori Onami
Kazunori Onami