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:
May. 05, 2020
Filed:
Mar. 03, 2016
Applicant:
Jfe Steel Corporation, Tokyo, JP;
Inventors:
Assignee:
JFE STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 11/10 (2006.01); F16B 5/08 (2006.01); B23K 11/11 (2006.01); B23K 11/16 (2006.01); B23K 9/28 (2006.01); B23K 103/04 (2006.01); B23K 101/34 (2006.01);
U.S. Cl.
CPC ...
F16B 5/08 (2013.01); B23K 11/11 (2013.01); B23K 11/16 (2013.01); B23K 11/163 (2013.01); B23K 2101/34 (2018.08); B23K 2103/04 (2018.08);
Abstract
Provided is a method for resistance spot-welding at least two overlapping steel sheets. When an electrode force F after an electric current supply is started changes from an initial electrode force Fi to an electrode force Fwhile a lapse from the start of the electric current supply is between 20 ms and 80 ms inclusive, a suspension of the electric current supply of from 20 ms to 60 ms inclusive is started. Then the electric current supply is resumed when the electrode force F reaches an electrode force F.