The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 2018
Filed:
Aug. 28, 2013
Applicant:
Jfe Steel Corporation, Tokyo, JP;
Inventor:
Takanobu Saito, Chiba, JP;
Assignee:
JFE STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21J 5/06 (2006.01); B21D 22/00 (2006.01); B21D 22/20 (2006.01); B21J 13/02 (2006.01); B21K 7/12 (2006.01); G06F 17/11 (2006.01); G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
B21J 5/06 (2013.01); B21D 22/00 (2013.01); B21D 22/20 (2013.01); B21J 13/02 (2013.01); B21K 7/12 (2013.01); G06F 17/11 (2013.01); G06F 17/5018 (2013.01); G06F 2217/42 (2013.01); Y10T 29/49817 (2015.01); Y10T 156/1002 (2015.01); Y10T 428/12389 (2015.01);
Abstract
A springback-reduced part formed by performing a springback reduction on a press-formed part that is formed by a press forming of a blank sheet made of a metal sheet. The springback-reduced part is formed by setting each element of an analytic model of the press-formed part to a stressed state that causes a springback, performing an optimization analysis for shape to detect a portion of the press-formed part that highly contributes to the rigidity thereof, applying a rigidity improving means on a specific portion of the press-formed part on the basis of the detected portion, and performing the press forming.