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公开(公告)号：US12036624B2
公开(公告)日：2024-07-16
申请号：US16558527
申请日：2019-09-03
CPC分类号： B23K26/0608 , B23K26/0648 , B23K26/21
摘要： A method of welding a workpiece by using a laser is provided which includes disposing a workpiece in a region to be irradiated with laser light from a laser oscillator; and irradiating the workpiece with the laser light from the laser oscillator such that an irradiated portion of the workpiece is melted and welded while sweeping the laser light over the workpiece by relatively moving the laser light and the workpiece. The laser light is formed of a main beam and an auxiliary beam, at least part of the auxiliary beam being disposed anteriorly in a sweep direction, and the main beam has a power density equal to or greater than a power density of the auxiliary beam.
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公开(公告)号：US12115594B2
公开(公告)日：2024-10-15
申请号：US17183495
申请日：2021-02-24
发明人： Tomomichi Yasuoka , Takashi Kayahara , Ryosuke Nishii , Koji Kirikae , Keigo Matsunaga , Takashi Shigematsu
IPC分类号： B23K26/067 , B23K26/06 , B23K26/08 , B23K26/21 , B23K26/32 , B23K103/04 , B23K103/10
CPC分类号： B23K26/067 , B23K26/0648 , B23K26/08 , B23K26/21 , B23K26/32 , B23K2103/04 , B23K2103/10
摘要： A welding method includes: emitting laser beam toward a workpiece including a metal to melt and weld a part of the workpiece, the part being where the laser beam has been emitted to. Further, the laser beam includes a main power region and at least one auxiliary power region, a power of the main power region is larger than a power of each of the at least one auxiliary power region, and a ratio between the power of the main power region and the total of powers of the at least one auxiliary power region is in a range of 144:1 to 1:9.
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