TWO-ELECTRODE ROTATING ARC FILLET WELDING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a two-electrode high-speed rotating arc fillet welding method by which the fillet welding with the leg length exceeding 12 mm can be efficiently performed with excellent accuracy by 1-run welding without changing the rotating diameter of a preceding electrode and a succeeding electrode. SOLUTION: In the two-electrode rotating arc fillet welding method for performing the fillet welding while rotating the preceding electrode and the succeeding electrode, the target position of the preceding electrode and the succeeding electrode is adjusted while maintaining the distance between the preceding electrode and the succeeding electrode in the prescribed interval. The target position of the preceding electrode and the succeeding electrode is preferably determined from the relationship between the target position and the leg length which is prepared in advance.