Patent ID: 11919110
Assignee: ESAB AB
Field: Machine tools (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 10:
11. A submerged arc welding (SAW) apparatus comprising:
a wire feeder mechanism to guide at least one welding wire toward a workpiece;
a flux delivery system to supply flux to the workpiece;
a power supply to supply alternating current (AC) welding power signal to the welding wire to create a molten weld pool on the workpiece; and
a controller configured to:
scan a geometry and a cross section of a joint to be welded;
estimate, based on the scanning, a total number of runs to weld the joint using a SAW operation performed by the SAW apparatus;
monitor the SAW operation in real-time;
determine a discrepancy between (i) a desired weld parameter that is based on the geometry and the cross section of the joint to be welded and the total number of runs and (ii) an actual weld parameter of a weld formed by the SAW operation; and
modify, in real-time, at least one of balance or offset of the AC welding power signal to compensate for the discrepancy.