发明申请
- 专利标题: LASER WELD METHOD AND WELD STRUCTURE
- 专利标题(中): 激光焊接方法和焊接结构
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申请号: US14680455申请日: 2015-04-07
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公开(公告)号: US20150283648A1公开(公告)日: 2015-10-08
- 发明人: Kohei HISADA , Atsushi KAWAKITA , Masahiro NAKATA
- 申请人: TOYOTA JIDOSHA KABUSHIKI KAISHA
- 优先权: JP2014-079702 20140408
- 主分类号: B23K26/00
- IPC分类号: B23K26/00 ; B23K26/20
摘要:
A laser welding method includes: forming a melted section in which plural metallic workpieces within a weld region are melted by projecting a first laser beam onto said weld region with parts of the workpieces being set as the weld region when the workpieces are welded; and projecting a second laser beam while the melted section is being solidified or after a solidified section in which the melted section is solidified is formed such that the second laser beam circles around center of the melted section or the solidified section from an irradiation start position deviated from said center toward said center or such that the second laser beam is focused to the center of the melted section or the solidified section from an irradiation start region that includes the center and a periphery thereof.
公开/授权文献
- US10137530B2 Laser weld method and weld structure 公开/授权日:2018-11-27