Title:
LASER WELDING DEVICE AND LASER WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/004610
Kind Code:
A1
Abstract:
A laser welding device is provided with: a laser oscillator to which the incidence end of a fiber is connected; a welding head connected to the emission end of the fiber, the welding head performing laser welding while condensing the laser light emitted by the laser oscillator through the emission end onto a workpiece and irradiating the workpiece; a sensing unit for sensing the presence/absence of a fault in laser welding; and a controller for controlling the operation of the laser oscillator and the welding head. Upon receiving, from the sensing unit, an output signal indicating a fault in a weld point on the workpiece during laser welding of the workpiece, the controller performs auxiliary laser welding at a prescribed position in the vicinity of the weld point.
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Inventors:
WANG JINGBO
SUGIYAMA TSUTOMU
KAWAI SHUNSUKE
SHIBATA KENZO
ISHIGURO MASASHI
SUGIYAMA TSUTOMU
KAWAI SHUNSUKE
SHIBATA KENZO
ISHIGURO MASASHI
Application Number:
PCT/JP2021/024223
Publication Date:
January 06, 2022
Filing Date:
June 25, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B23K26/00; B23K26/21
Foreign References:
| JPH03169494A | 1991-07-23 | |||
| JPH0747471A | 1995-02-21 | |||
| JP2008183614A | 2008-08-14 | |||
| US20170239750A1 | 2017-08-24 | |||
| JP2020111720A | 2020-07-27 |
Other References:
See also references of EP 4173749A4
Attorney, Agent or Firm:
YOSHIDA Masaaki (JP)
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