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.

Date of Patent:
Nov. 08, 2016

Filed:

Sep. 04, 2012
Applicants:

Eisaku Hasegawa, Tochigi, JP;

Sumitomo Watanabe, Tochigi, JP;

Masahito Mutou, Tochigi, JP;

Inventors:

Eisaku Hasegawa, Tochigi, JP;

Sumitomo Watanabe, Tochigi, JP;

Masahito Mutou, Tochigi, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 9/00 (2006.01); B23K 11/11 (2006.01); B23K 11/00 (2006.01); B23K 11/36 (2006.01);
U.S. Cl.
CPC ...
B23K 11/11 (2013.01); B23K 11/0026 (2013.01); B23K 11/364 (2013.01);
Abstract

A one-side spot welding method for causing an electrode to contact a welding portion of a work-piece only from one side of the work-piece to weld the work-piece, the method includes a nugget forming process of applying welding pressure to the work-piece through the electrode, and causing the work-piece to be fully electrically conducted at a predetermined current value, and a slow-cooling process of applying welding pressure to the work-piece through the electrode from the one side, and causing the work-piece to be electrically conducted at a current value lower than the predetermined current value after the nugget forming process.


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