Title:
LASER WELDING METHOD
Document Type and Number:
Japanese Patent JPS57106488
Kind Code:
A
Abstract:
PURPOSE: To obtain a sound weld zone at high efficiency by welding a material having quench hardening property while heating the side of the weld line including the weld zone.
CONSTITUTION: A butted part of steel strips 2 cut by a shear is welded using a laser beam while heating the vicinity of the weld line including the butted part 4 using, for instance, a high frequency coil 8. The heating temperature is to be ≥700°C. By this method, even a steel strip having a quench hardening property such as tool steel etc. that generates cracks by conventional laser welding can be welded without forming any cracks.
Inventors:
SASAKI HIROAKI
NISHIYAMA NOBORU
TSUBOI JIYUNICHIROU
NISHIYAMA NOBORU
TSUBOI JIYUNICHIROU
Application Number:
JP18153780A
Publication Date:
July 02, 1982
Filing Date:
December 22, 1980
Export Citation:
Assignee:
KAWASAKI STEEL CO
International Classes:
B23K26/21; (IPC1-7): B23K26/00