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:
Dec. 01, 2020
Filed:
Aug. 21, 2018
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Yoshiaki Tanaka, Osaka, JP;
Kazunori Matsumoto, Osaka, JP;
Kimiya Sato, Hyogo, JP;
Akira Nakagawa, Osaka, JP;
Hiroki Yuzawa, Saitama, JP;
Hideki Ihara, Hyogo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 9/073 (2006.01); B23K 9/12 (2006.01); B23K 9/09 (2006.01);
U.S. Cl.
CPC ...
B23K 9/073 (2013.01); B23K 9/09 (2013.01); B23K 9/124 (2013.01);
Abstract
In a method and device for performing welding, after the welding current reaches a first current value during a short circuit, the feeding of the welding wire is stopped, slowed down, or moved backward. As a result, the opening of a short circuit is urged to reduce the frequency at which welding is unnecessarily interrupted by an overcurrent protection function. This achieves high weld quality such as the absence of welding defects, and high production efficiency.