US 11,919,110 B2
Balance and offset in adaptive submerged arc welding
Hannes Raudsepp, Täby (SE)
Assigned to ESAB AB, Gothenburg (SE)
Filed by ESAB AB, Gothenburg (SE)
Filed on Jul. 21, 2020, as Appl. No. 16/934,093.
Prior Publication US 2022/0023965 A1, Jan. 27, 2022
Int. Cl. B23K 9/18 (2006.01); B23K 9/095 (2006.01); B23K 9/12 (2006.01); G01B 11/28 (2006.01); G05B 19/042 (2006.01)
CPC B23K 9/186 (2013.01) [B23K 9/0953 (2013.01); B23K 9/0956 (2013.01); B23K 9/125 (2013.01); G01B 11/285 (2013.01); G05B 19/042 (2013.01); G05B 2219/23251 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
scanning a geometry and a cross section of a weld joint;
estimating, based on the scanning, a total number of runs to weld the weld joint using a submerged arc welding (SAW) operation;
monitoring the SAW operation in real-time;
determining, based on the monitoring and the scanning and the estimating, a discrepancy between a desired weld parameter and an actual weld parameter of a weld resulting from the SAW operation; and
in response to determining the discrepancy, controlling a power supply, which provides power for the SAW operation, to modify at least one of balance or offset of an alternating current (AC) welding power signal supplied for the SAW operation to compensate for the discrepancy.