| 摘要 |
PURPOSE:To improve welding work efficiency in the T-shaped welding method to form a welded joint having a T-shaped cross section by laser beam welding by forming the Tee type joint with one weld line at the quick welding speed for one joint part. CONSTITUTION:A couple of tabular members 6 and 7 on right and left are arranged tabularly with the end faces thereof abutted on each other, a plate member 9 is arranged by abutting on one surface side of the abutted position 8 of the tabular members 6 and 7 so as to cross orthogonally, then, welding is performed by a laser beam from the other surface side of the abutted position 8 of the tabular members 6 and 7 and the tabular members 6 and 7 and the plate member 9 are joined together to form the welded joint having the T-shaped cross section. |
