Title:
GAS FEED NOZZLE FOR LASER WELDING AND LASER WELDING EQUIPMENT
Document Type and Number:
Japanese Patent JP2007253216
Kind Code:
A
Abstract:
To prevent deterioration in the quality of a weld zone by easily forming a stable oxidation preventive atmosphere around a molten pool generated by the irradiation of laser light.
A gas feed nozzle 3 for laser welding has a nozzle body part 3a tilted to the light axis LS of laser light L emitted to a sheet material W and injecting a shielding gas G from the oblique part thereof, and the tip 3E of the nozzle body 3a is provided on a planar face PA tilted to the standard plane SP orthogonal to the tube axis line NS of the nozzle body 3a and orthogonal to the light axis LS.
COPYRIGHT: (C)2008,JPO&INPIT
Inventors:
KAWADA NAOKI
NAGASHIMA SHIGEHIRO
SOBAGAKI TADASHI
IWAKI SHUNICHI
GENJI KAZUO
OTSUKA YOSUKE
NAGASHIMA SHIGEHIRO
SOBAGAKI TADASHI
IWAKI SHUNICHI
GENJI KAZUO
OTSUKA YOSUKE
Application Number:
JP2006083110A
Publication Date:
October 04, 2007
Filing Date:
March 24, 2006
Export Citation:
Assignee:
TOKYU CAR CORP
International Classes:
B23K26/14; B23K26/21
Domestic Patent References:
| JPH0775892A | 1995-03-20 |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Shiro Terasaki
Shiro Terasaki