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. 05, 2005
Filed:
Dec. 12, 2000
Takayuki Yamano, Kakogawa, JP;
Jiro Iwaya, Kakogawa, JP;
Takayuki Yamano, Kakogawa, JP;
Jiro Iwaya, Kakogawa, JP;
Abstract
A method in which engineers having no experience and technical storage can preliminarily easily and accurately predict an amount of dimensional accuracy defect which occurs at the time of press-forming a metal sheet before press-forming without having expertise such numerical value simulations and mathematics. In predicting an amount of dimensional accuracy defect at the time of press-forming a metal sheet, as a stress-strain relationship, an elastic-perfectly plastic solid model having a fixed stress value after being yielded is adopted and a value which is equal to or less than a tensile strength and exceeds a yield strength is used as an apparent yield strength.