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:
Mar. 15, 2005
Filed:
Oct. 20, 2000
Koji Hashimoto, Chiba, JP;
Yukihisa Kuriyama, Chiba, JP;
Toru Yoshida, Chiba, JP;
Yasunobu Miyazaki, Chiba, JP;
Koji Hashimoto, Chiba, JP;
Yukihisa Kuriyama, Chiba, JP;
Toru Yoshida, Chiba, JP;
Yasunobu Miyazaki, Chiba, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
There is provided a tailored blank article for press forming, the article having an excellent formability and comprising multiple different plates of different thickness, which can evade a break of a low strength plate (or low-thickness plate) due to strength rate-determining is provided in press forming. The tailored blank article for press forming, having an excellent formability and comprising two or more kinds of raw plates, continuously welded together, each having a different tensile strength, is characterized in that a ratio (n/n) of a work hardening property value (n) of a higher tensile strength plate and a work hardening property value (n) of a lower tensile strength plate is set to be 0.75 or more and 3.8 or less.