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. 12, 2017
Filed:
Mar. 06, 2012
Atsushi Sugai, Tokyo, JP;
Yu Matsunaga, Tokyo, JP;
Daisuke Ogura, Tokyo, JP;
Shoichi Morimoto, Tokyo, JP;
Minoru Arima, Tokyo, JP;
Yuichi Kaneda, Tokyo, JP;
Akihiko Egami, Tokyo, JP;
Atsushi Sugai, Tokyo, JP;
Yu Matsunaga, Tokyo, JP;
Daisuke Ogura, Tokyo, JP;
Shoichi Morimoto, Tokyo, JP;
Minoru Arima, Tokyo, JP;
Yuichi Kaneda, Tokyo, JP;
Akihiko Egami, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
A plate-shaped workpiece forming method of post-machining a pocket () on a curved inner surface of a plate-shaped workpiece () in a state where the plate-shaped workpiece () curved by a curving machine () is spread flat. The method includes a curving step (A) of setting a net curve radius (R) obtained by adding a curve radius contraction amount (R) due to spring-in to a finished curve radius (R) of a plate-shaped workpiece (), taking into account an amount of contraction of the curve radius of the plate-shaped workpiece () between before and after machining of a pocket () due to spring-in, and curving the plate-shaped workpiece () so as to achieve the net curve radius (R); and a pocket machining step of post-machining the pocket () by flatly spreading the curved plate-shaped workpiece ().