| CPC B23K 26/21 (2015.10) [B23K 26/322 (2013.01); H02K 15/35 (2025.01); B23K 2101/36 (2018.08)] | 3 Claims |
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1. A laser welding method for welding a first member and a second member to each other by applying a laser beam to the first member and the second member in a state where the first member and the second member are brought into contact with each other, the laser welding method comprising:
forming a first weld pool by applying the laser beam to the first member;
continuing the application of the laser beam to the first member until a width of a first bridge formed between the first member and the second member becomes wider than a width of the laser beam, the first bridge being formed such that the first weld pool is attached to the second member by growing;
moving, after the continuing the application of the laser beam to the first member until a width of a first bridge formed between the first member and the second member becomes wider than a width of the laser beam, the laser beam to the second member and continuously applying the laser beam to the second member to form a second weld pool; and
continuing the application of the laser beam to the second member until a width of a second bridge formed between the first member and the second member becomes wider than the width of the laser beam, the second bridge being formed such that the second weld pool formed in the second member is attached to the first member by growing,
wherein a time during which the laser beam is applied to the first member is a first predetermined time set after starting the forming the first weld pool, based on an image of a welding state captured by use of a camera, and
wherein a time during which the laser beam is applied to the second member is a second predetermined time set after starting the forming the second weld pool, based on an image of a welding state captured by use of the camera, the second predetermined time being shorter than the first predetermined time.
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