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Patent Searching and Data


Title:
LASER WELDING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/198443
Kind Code:
A1
Abstract:
An irradiation position of measuring light S is capable of being switched between a keyhole 37 position coaxial with the optical axis of laser light L, and a welding bead 38 position further toward the rear in a welding direction than the center of the optical axis of the laser light L. Furthermore, on the basis of a measured value of a recess depth measured at the welding bead 38 position, a determination is carried out to ascertain whether a gap has been generated between an upper side metal plate 31 and a lower side metal plate 32.

Inventors:
SAKAI TORU
KAWAMOTO ATSUHIRO
FUJIWARA JUNJI
SAKURAI MICHIO
Application Number:
PCT/JP2019/011483
Publication Date:
October 17, 2019
Filing Date:
March 19, 2019
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B23K26/24; B23K26/00
Domestic Patent References:
WO2014132503A12014-09-04
Foreign References:
US20160039045A12016-02-11
US20160356595A12016-12-08
JP2018153842A2018-10-04
JP2012236196A2012-12-06
Other References:
See also references of EP 3778101A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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