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:
Sep. 19, 2017
Filed:
Aug. 30, 2007
Tohru Yoshida, Tokyo, JP;
Shunji Hiwatashi, Tokyo, JP;
Seiichi Daimaru, Tokyo, JP;
Yasuharu Tanaka, Tokyo, JP;
Takashi Ariga, Tokyo, JP;
Toshiyuki Niwa, Tokyo, JP;
Yukihisa Kuriyama, Tokyo, JP;
Satoru Okayama, Tokyo, JP;
Tohru Yoshida, Tokyo, JP;
Shunji Hiwatashi, Tokyo, JP;
Seiichi Daimaru, Tokyo, JP;
Yasuharu Tanaka, Tokyo, JP;
Takashi Ariga, Tokyo, JP;
Toshiyuki Niwa, Tokyo, JP;
Yukihisa Kuriyama, Tokyo, JP;
Satoru Okayama, Tokyo, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Abstract
A method of identification of a cause of occurrence of springback comprising a press forming analysis step of numerically analyzing forming conditions of press forming to obtain forming data of a press formed part, a processing step of processing at least one of a physical property value and physical property quantity data of part of the regions of said press formed part among forming data of said press formed part, and a springback value calculation step of calculating a springback value based on the results of said processing.