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:
Aug. 27, 2019
Filed:
Apr. 27, 2015
Applicant:
Daihen Corporation, Osaka, JP;
Inventors:
Toshiyuki Tanaka, Osaka, JP;
Toshiaki Nakamata, Osaka, JP;
Assignee:
DAIHEN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K 9/12 (2006.01); B23K 9/073 (2006.01); B23K 9/09 (2006.01); B23K 9/095 (2006.01); B23K 9/173 (2006.01);
U.S. Cl.
CPC ...
B23K 9/125 (2013.01); B23K 9/073 (2013.01); B23K 9/09 (2013.01); B23K 9/0956 (2013.01); B23K 9/173 (2013.01);
Abstract
There is provided an arc welding control method. As to a feeding rate of a welding wire, a forward feeding period and a reverse feeding period are alternated cyclically to generate short-circuiting periods and arc periods. When a constriction of a droplet formed at the welding wire is detected during the short-circuiting period, a welding current is reduced to shift to the arc period. Sensitivity of the detection of constriction is changed according to a waveform parameter of the feeding rate.