(EN) This laser welding method has a first step and a second step. In the first step, a first workpiece and a second workpiece are overlaid in a first work area. In the second step, the first workpiece and the second workpiece are irradiated with a laser light in the first work area while the laser light is moved in a spiral path. Also in the second step, the first workpiece and the second workpiece are melted by irradiation of the laser light to form a liquid-phase portion. Also in the second step, the laser light is moved so as not to irradiate the liquid-phase portion a second time.
(ZH) 本发明的激光焊接方法具有第一工序和第二工序。在第一工序中，使第一加工物与第二加工物在第一加工区域中重叠。在第二工序中，在第一加工区域内，一边使激光沿旋涡状的轨道移动，一边向第一加工物以及第二加工物照射激光。并且在第二工序中，第一加工物以及第二加工物通过激光的照射而熔融并形成液相部分。并且在第二工序中，为了不使激光再次向液相部分照射而使激光移动。
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