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:
Nov. 21, 2023
Filed:
Mar. 20, 2018
Applicant:
Nippon Steel Corporation, Tokyo, JP;
Inventors:
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 28/34 (2006.01); B23D 15/04 (2006.01); B23D 35/00 (2006.01); B26D 1/01 (2006.01); B26D 7/06 (2006.01); B26D 7/26 (2006.01); B26D 1/00 (2006.01);
U.S. Cl.
CPC ...
B21D 28/34 (2013.01); B23D 15/04 (2013.01); B23D 35/005 (2013.01); B26D 1/01 (2013.01); B26D 7/06 (2013.01); B26D 7/2628 (2013.01); B26D 2001/0066 (2013.01);
Abstract
A shearing method of a plate-shaped workpiece for applying a shear force in a thickness direction of the plate-shaped workpiece includes: a step for starting applying the shear force on the workpiece with a clearance between action points in a surface direction orthogonal to the thickness direction of the workpiece; a step for applying the shear force after the start of applying the shear force until a fractured surface is created in the workpiece; and a step for increasing the clearance depending on a deformation of the workpiece in the thickness direction after starting applying the shear force until the fractured surface is created in the workpiece.