Title:
成形品の製造方法、金型、及び管状成形品
Document Type and Number:
Japanese Patent JP6477716
Kind Code:
B2
Abstract:
A method of production of a shaped article able to suppress occurrence of shaping defects, that is, a method of production of a shaped article including a first step of press-forming a metal plate (1a) into a U-shape to obtain a U-shaped article (1b) having a bottom part (2) straight extending in a longitudinal direction and a second step of press-forming the U-shaped article (1b) to bend it in the longitudinal direction so that the bottom part (2) of the part projects to the inside and obtain a U-cross-section bent article (1c).
Inventors:
Masahiko Sato
Toru Yoshida
Toru Yoshida
Application Number:
JP2016548949A
Publication Date:
March 06, 2019
Filing Date:
September 17, 2015
Export Citation:
Assignee:
Nippon Steel & Sumitomo Metal Corporation
International Classes:
B21D51/16; B21D5/01; B21D7/06
Domestic Patent References:
| JP59073120A | ||||
| JP56148416A | ||||
| JP10329503A | ||||
| JP2008080381A | ||||
| JP57165120A | ||||
| JP2009513354A | ||||
| JP3114918B2 |
Foreign References:
| WO2013111308A1 |
Attorney, Agent or Firm:
Atsushi Aoki
Shinji Mitsuhashi
Fukuchi Ritsuo
Manabu Saito
Shinji Mitsuhashi
Fukuchi Ritsuo
Manabu Saito
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