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:
Aug. 17, 2021

Filed:

Jan. 18, 2019
Applicant:

Daihen Corporation, Osaka, JP;

Inventors:

Kohei Ono, Osaka, JP;

Toshiaki Nakamata, Osaka, JP;

Kento Takada, Osaka, JP;

Assignee:

DAIHEN Corporation, Osaka, JP;

Attorney:
Primary 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 9/10 (2006.01);
U.S. Cl.
CPC ...
B23K 9/125 (2013.01); B23K 9/073 (2013.01); B23K 9/09 (2013.01); B23K 9/091 (2013.01); B23K 9/095 (2013.01); B23K 9/0953 (2013.01); B23K 9/1006 (2013.01);
Abstract

A method is provided for controlling arc welding including forward and reverse feeding periods alternately switched. By the method, a set of a short circuit period and an arc period is repeated, and the arc welding is controlled such that the reverse feeding period shifts to the forward feeding period when an arc occurs during the reverse feeding period, and that the forward feeding period shifts to the reverse feeding period when a short circuit occurs between the welding wire and the object during the forward feeding period. The reverse feeding period includes a reverse feeding deceleration period having a time length that is adjusted in accordance with the time length of the short circuit period.


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