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:
Jul. 20, 2021
Filed:
Mar. 10, 2017
Applicant:
Kobe Steel, Ltd., Hyogo, JP;
Inventors:
Assignee:
Kobe Steel, Ltd., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 9/00 (2006.01); B23K 9/02 (2006.01); B23K 9/09 (2006.01); B23K 9/095 (2006.01); B23K 9/12 (2006.01); B23K 9/127 (2006.01);
U.S. Cl.
CPC ...
B23K 9/0216 (2013.01); B23K 9/09 (2013.01); B23K 9/0956 (2013.01); B23K 9/12 (2013.01); B23K 9/127 (2013.01);
Abstract
An arc-tracking welding method according to the present invention is an arc-tracking welding method in a consumable-electrode-type welding apparatus provided with a weaving function for swinging a torch in the welding direction, wherein a welding current and a welding voltage to be supplied to a consumable electrode include high-frequency components. A change in resistance value resulting from a fluctuation in electrode height is detected from the welding current and the welding voltage during welding. Then, a shift of a weld line is detected from information about the detected resistance value and both end positions of a weaving amplitude.