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Title:
LASER WELDING METHOD AND LASER WELDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/230070
Kind Code:
A1
Abstract:
This laser welding method comprises at least a welding step for irradiating a surface of a workpiece with a laser beam while advancing the laser beam in an X direction and scanning in a Y direction intersecting the X direction. The welding step includes at least: a first weaving step for weaving the laser beam in the Y direction with a first amplitude (A1); and a second weaving step for weaving the laser beam with a prescribed amplitude smaller than the first amplitude (A1) at both ends of a weaving locus drawn by the laser beam in the first weaving step.

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Inventors:
WANG JINGBO
SUGIYAMA TSUTOMU
KAWAI SHUNSUKE
SHIBATA KENZO
ISHIGURO MASASHI
Application Number:
PCT/JP2021/016754
Publication Date:
November 18, 2021
Filing Date:
April 27, 2021
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B23K26/28; B23K26/00; B23K26/21
Domestic Patent References:
WO2019030249A12019-02-14
Foreign References:
JP2014205166A2014-10-30
JP2020062682A2020-04-23
CN107755912A2018-03-06
CN110153557A2019-08-23
JP2016123981A2016-07-11
JP3965754B22007-08-29
JP6588498B22019-10-09
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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