Title:
PRESS-MOLDING DIE AND PRESS-MOLDING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/240942
Kind Code:
A1
Abstract:
A press-molding die 21 according to the present invention is for molding a press-molded article 1 having: a ceiling part 3; a vertical wall part 5 that is contiguous to the ceiling part 3 and that, at the lower edge opposite to the ceiling part in a lateral view, has a recess portion 7 recessed toward the ceiling part 3; and a flange part formed outwardly at the lower edge of the vertical wall 5. The recess portion 7 has, in order from a lower edge 11 at a portion where the wall depth is greater, a first curved section 17 contiguous to said lower edge, an inclined edge section 13 contiguous to the first curved section 17, a second curved section 19 contiguous to the inclined edge section 13, and a recessed edge section 15 where the wall depth is small. A flange part 9 formed in the first curved section 17 is a contraction flange and a flange part formed in the second curved section 19 is an elongation flange.
Inventors:
AGEBA RYO (JP)
Application Number:
PCT/JP2021/008870
Publication Date:
December 02, 2021
Filing Date:
March 08, 2021
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B21D24/00; B21D22/26
Domestic Patent References:
| WO2016194963A1 | 2016-12-08 | |||
| WO2017170533A1 | 2017-10-05 |
Foreign References:
| JP2010069490A | 2010-04-02 | |||
| JP6032374B2 | 2016-11-30 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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