Title:
LASER WELDING DEVICE AND LASER WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/135860
Kind Code:
A1
Abstract:
This laser welding device performs laser welding on a workpiece by irradiating the workpiece with a laser beam. The laser welding device comprises: a first laser oscillator that emits a first laser beam; a second laser oscillator that emits a second laser beam different in wavelength from the first laser beam; a first laser beam scanning system that changes the irradiation positions of the first laser beam and the second laser beam with respect to the workpiece; and a first diffraction optical element that changes the light condensing distance of the second laser beam with respect to the workpiece so as to cause the light condensing position of the second laser beam on the workpiece to substantially coincide with the light condensing position of the first laser beam.
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Inventors:
YOSINAGA MITUHIRO
Application Number:
PCT/JP2022/033392
Publication Date:
July 20, 2023
Filing Date:
September 06, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B23K26/042; B23K26/064; B23K26/067; B23K26/082; B23K26/21
Domestic Patent References:
| WO2009063670A1 | 2009-05-22 |
Foreign References:
| JP2014024105A | 2014-02-06 | |||
| JP2010082672A | 2010-04-15 | |||
| JP2019536635A | 2019-12-19 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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