| 摘要 |
A laser welding method using a laser welding robot irradiating a workpiece with a laser beam, the laser welding method has firing the laser beam at a time of not welding, making the laser beam move to the next weld location at a feed rate faster than the feed rate at a time of welding and not leaving a heat affected layer at the workpiece in a state while firing the laser beam, and successively welding a plurality of weld locations of the workpiece. It is possible to make the laser beam move at the time of not welding while defocused. Also, a laser welding robot irradiating a workpiece with a laser beam, provided with a laser output controller controlling the robot to fire a laser beam both at a time of welding and at a time of not welding and fast feed mechanisms for making the laser beam move by a feed rate faster than the feed rate at the time of welding and not leaving a heat affected layer at the workpiece. It is possible to make the fast feed mechanism move simultaneously with movement of the robot body.
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