LAZER WELDING METHOD

To provide a laser welding method that can suppress generation of sputter at welding.SOLUTION: A laser welding method includes a step of irradiating a work 9 with a first laser beam 81 and a second laser beam 82 having the same optical axis as that of the first laser beam 81 and capable of irradiating a peripheral edge part of an irradiation region of the first laser beam 81. In the irradiation step, the second laser beam 82 has an energy density that is 1.5% or more and 4.5% or less of an energy density of the first laser beam 81.SELECTED DRAWING: Figure 3 【課題】溶接時におけるスパッタの発生を抑制可能なレーザ溶接方法を提供する。【解決手段】第１のレーザ光８１と、第１のレーザ光８１と光軸が同じであると共に、第１のレーザ光８１の照射領域の周縁部を照射可能な第２のレーザ光８２と、を、ワーク９に照射する工程を備え、前記照射する工程において、第２のレーザ光８２のエネルギー密度は、第１のレーザ光８１のエネルギー密度の１．５％以上４．５％以下である、レーザ溶接方法。【選択図】図３