Title:
金属板材の成形方法及び成形装置
Document Type and Number:
Japanese Patent JP6798292
Kind Code:
B2
Abstract:
A fixed die and a punch, which moves toward and away from the die, are provided. A series of bulges is formed in sheet metal between depressions and projections of the die and projections and depressions of the punch. In forming, the punch moves toward the die such that the sheet metal is pressed between first convex sections and second and third convex sections of the die and the punch, and subsequently the sheet metal is pressed between fourth convex sections.
Inventors:
Kazuyuki Hirata
Application Number:
JP2016237735A
Publication Date:
December 09, 2020
Filing Date:
December 07, 2016
Export Citation:
Assignee:
Toyota Boshoku Co., Ltd.
International Classes:
B21D13/02; B21D5/01; B21D37/08
Domestic Patent References:
| JP2014213343A | ||||
| JP2006120497A |
Foreign References:
| WO2014208244A1 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda