| 摘要 |
PROBLEM TO BE SOLVED: To stabilize a welding state in an anti-stick period when finishing welding, in the welding for alternately switching a normal feed period and an inverse feed period of a feed speed.SOLUTION: An arc welding control method is provided for welding by generating a short-circuit period and an arc period by executing reciprocal feed control for alternately switching a feed speed Fw of a welding wire to a normal feed period and an inverse feed period, and finishes welding by switching the feed speed Fw to normal feed control from the reciprocal feed control when transferring to the short-circuit period from the arc period (t13) by inputting a welding finish command St. Thus, since the welding wire is controlled in a normal feed in an anti-stick period after switching to the normal feed control, it becomes a stable welding state.SELECTED DRAWING: Figure 2 |
