| 摘要 |
PROBLEM TO BE SOLVED: To breakthrough such an existing situation that a user has to measure and obtain a preceding processing time for wire slowdown in a case where a wasting time arisen at the time of starting the arc should be diminished, and the preceding processing time has to be adjusted at every welding initiation point.SOLUTION: A working program is restored in a trial motion mode. When a welding torch reaches a welding initiation point, if a welding wire is slowed down, a trial slowdown time Tas_try from a welding wire slowdown initiation time point to a time point when the welding wire comes into contact with a workpiece W and conducts is measured. Thereafter, the working program is restored in a normal motion mode. If the trial slowdown time Tas_try is longer than an arc start time Tas, before the welding torch reaches the welding initiation point, slowdown of the welding wire is initiated in order to move the welding torch to the welding initiation point so that the arc start time Tas can begin within the trial slowdown time Tas_try. |
