Title:
筒部材の製造方法
Document Type and Number:
Japanese Patent JP7430081
Kind Code:
B2
Abstract:
A part of a plate member is machined to remove material therefrom so as to obtain an intermediate product having a thickness difference. Then, the intermediate product is bent and both edges thereof are joined to obtain a cylindrical body. Further, a first heat treatment of heating the cylindrical body is performed. Then, through holes penetrating from the outside to the inside of the peripheral wall of the cylindrical body are formed. Pipe parts are joined to the tubular body thus obtained to form a tubular member. This tubular member is subjected to a second heat treatment.
Inventors:
Takeshi Kiyama
Yuji Miki
Yuji Miki
Application Number:
JP2020048826A
Publication Date:
February 09, 2024
Filing Date:
March 19, 2020
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
B21D51/10; B21D3/00; B21D3/14; B21D5/01; B21D28/28
Domestic Patent References:
| JP48103452A | ||||
| JP10080726A | ||||
| JP2012213792A | ||||
| JP2006272457A |
Attorney, Agent or Firm:
Takehiro Chiba
Toshiyuki Miyadera
Takayuki Chima
Yasuharu Nakasone
Shiro Sakai
Tosuke Sekiguchi
Toshiyuki Miyadera
Takayuki Chima
Yasuharu Nakasone
Shiro Sakai
Tosuke Sekiguchi
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