Title:
LASER WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2015/129231
Kind Code:
A1
Abstract:
This laser welding method has a first step and a second step. In the first step, a first workpiece and a second workpiece are overlaid in a first work area. In the second step, the first workpiece and the second workpiece are irradiated with a laser light in the first work area while the laser light is moved in a spiral path. Also in the second step, the first workpiece and the second workpiece are melted by irradiation of the laser light to form a liquid-phase portion. Also in the second step, the laser light is moved so as not to irradiate the liquid-phase portion a second time.
Inventors:
NAKAGAWA TATSUYUKI
MUKAI YASUSHI
KAWAMOTO ATSUHIRO
FUJIWARA JUNJI
MATSUOKA NORIYUKI
MUKAI YASUSHI
KAWAMOTO ATSUHIRO
FUJIWARA JUNJI
MATSUOKA NORIYUKI
Application Number:
PCT/JP2015/000836
Publication Date:
September 03, 2015
Filing Date:
February 23, 2015
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
B23K26/28; B23K26/244
Domestic Patent References:
| WO1999008829A1 | 1999-02-25 |
Foreign References:
| JP2010094701A | 2010-04-30 | |||
| JP2012115876A | 2012-06-21 | |||
| US5603853A | 1997-02-18 |
Other References:
See also references of EP 3112077A4
Attorney, Agent or Firm:
FUJII, Kentaro et al. (JP)
Fujii Kentaro (JP)
Fujii Kentaro (JP)
Download PDF:
Previous Patent: DOME CAMERA
Next Patent: LOUDSPEAKER, ELECTRONIC APPARATUS USING SAME, AND MOBILE APPARATUS
Next Patent: LOUDSPEAKER, ELECTRONIC APPARATUS USING SAME, AND MOBILE APPARATUS