| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce time for welding each part of a support grid assembled tentatively. <P>SOLUTION: This is a laser beam welding method in which workpiece with a plurality of weld spots arrayed under a specific rule is welded using a laser welding irradiation head that moves matched with the array of the weld spots of the workpiece. The method includes a laser light source beam dividing step in which a laser light source beam is divided into a plurality of welding laser beams and an irradiation step in which the plurality of welding laser beams divided by the dividing step are emitted from the laser welding irradiation head to the plurality of weld spots of the workpiece. In the workpiece, weld spots of the same shapes and sizes are arrayed under a specific rule, while the laser welding irradiation head moves matched with the shape, size, and array of the weld spots of the workpiece in the method. In the laser light source beam dividing step, the laser light source beam is divided inside the laser welding irradiation head in the method. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
