| 摘要 |
The present invention is an arc welding control method in which an arc is generated between a welding wire, which is a consumed electrode, and material to be welded. During steady welding, the wire feed rate is set at a prescribed fixed rate, and after the time of an instruction for completion of welding, the wire feed rate is switched from the prescribed fixed rate to feeding that repeats a forward feed and reverse feed. Or, the rate decelerates with the passage of time from the time of the prescribed fixed rate, and from a time at which a prescribed time has passed after the instruction for completion of welding, the rate is switched to feeding that repeats the forward feed and reverse feed. Thus, formation of a welding end part (crater part) with little spatter, having a small size, and without concavity is possible. |
