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:
Jul. 28, 2026
Filed:
Feb. 10, 2023
Jfe Steel Corporation, Tokyo, JP;
Yasuhiro Kishigami, Tokyo, JP;
JFE STEEL CORPORATION, Tokyo, JP;
Abstract
A designing method of a press forming die reduces a press forming load and includes: making a die model in which a surface of the press forming die is provided with a virtual thickness by a nonrigid two-dimensional element; setting stiffness distributions of the die model by making a boundary condition of the two-dimensional element vary depending on a portion of the die model; acquiring a press forming load by performing a press forming analysis by using the die model in which the stiffness distributions are set; determining whether the press forming load is within a predetermined range of the press forming load; determining the set stiffness distributions of the die model as design stiffness distributions of the press forming die in a case where it is determined that the press forming load is within the predetermined range of the press forming load.