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Patent Searching and Data


Title:
LASER WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/198439
Kind Code:
A1
Abstract:
Laser welding is performed while irradiation positions of laser light L and measuring light S are moved in a forward direction, a right direction, a rearward direction, and a left direction, and a weld penetration depth of a welded portion 35 is measured in each direction. A direction in which a measured value that is smaller than a reference value has been measured is determined to be an optical axis displacement direction, and when laser welding is to be carried out toward the optical axis displacement direction, a correction value is added to measured values measured during the laser welding.

Inventors:
SAKURAI Michio
SAKAI Toru
KUBOTA Kenta
URASHIMA Takashi
HIGASHI Daichi
Application Number:
JP2019/011444
Publication Date:
October 17, 2019
Filing Date:
March 19, 2019
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
B23K26/24; B23K26/00
Domestic Patent References:
WO2014132503A12014-09-04
Foreign References:
US20160039045A12016-02-11
US20160356595A12016-12-08
Attorney, Agent or Firm:
MAEDA & PARTNERS (Shin-Daibiru Bldg. 23F, 2-1 Dojimahama 1-chome, Kita-ku, Osaka-sh, Osaka 04, 〒5300004, JP)
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