Title:
Press molding method and manufacturing method of press molded parts
Document Type and Number:
Japanese Patent JP6361902
Kind Code:
B2
Abstract:
[Problem] To improve a press-forming yield by suppressing the generation of cracks when drawing a complex-shaped component from a high-strength metal sheet. [Solution] This press-forming method is characterized in that a prior-step press-formed product shape is set from a mid-development shape obtained during the development of the final component shape of a press-formed component having a drawn shape, and in that the press-formed product in the prior step is press-formed to the prior-step press-formed product shape that has been set.
Inventors:
Takayuki Futatsuka
Toyohisa Shingu
Eiji Iizuka
Kentaro Sato
Toyohisa Shingu
Eiji Iizuka
Kentaro Sato
Application Number:
JP2017528682A
Publication Date:
July 25, 2018
Filing Date:
July 12, 2016
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B21D22/26
Domestic Patent References:
| JP2011206789A | ||||
| JP5614514B2 | ||||
| JP55106524U | ||||
| JP2014520961A |
Foreign References:
| WO2014106932A1 |
Attorney, Agent or Firm:
Ginza Marronnier Patent Office