发明授权
- 专利标题: Laser welding method
- 专利标题(中): 激光焊接方法
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申请号: US14008177申请日: 2011-04-28
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公开(公告)号: US09266195B2公开(公告)日: 2016-02-23
- 发明人: Koji Yano , Hiroyuki Sumi
- 申请人: Koji Yano , Hiroyuki Sumi
- 申请人地址: JP Tokyo
- 专利权人: JFE STEEL CORPORATION
- 当前专利权人: JFE STEEL CORPORATION
- 当前专利权人地址: JP Tokyo
- 代理机构: Oliff PLC
- 优先权: JP2011-072107 20110329; JP2011-073023 20110329
- 国际申请: PCT/JP2011/060806 WO 20110428
- 国际公布: WO2012/132024 WO 20121004
- 主分类号: B23K26/26
- IPC分类号: B23K26/26 ; B23K26/24 ; B23K26/06 ; B23K26/32
摘要:
A laser welding method includes emitting two laser beams along a weld line from an upper surface side of a workpiece, the two laser beams being transmitted through different optical fibers and having in-focus spot diameters of 0.3 mm or larger; emitting the laser beams such that a leading laser beam of the two laser beams and a trailing laser beam of the two laser beams are each inclined toward a direction in which welding proceeds at an incident angle with respect to a direction perpendicular to an upper surface of the workpiece, the leading laser beam being ahead of the trailing laser beam on the upper surface of the workpiece in the direction in which welding proceeds, the trailing laser beam being behind the leading laser beam; and setting the incident angle of the leading laser beam to be larger than the incident angle of the trailing laser beam.
公开/授权文献
- US20140076865A1 LASER WELDING METHOD 公开/授权日:2014-03-20