| 摘要 |
PROBLEM TO BE SOLVED: To provide an end tab for welding which suppresses the occurrence of joint defect when joining the base materials to each other by arc welding and enables sound joining without depending on proficiency of the welding technicians, and to provide a welding method using the same. SOLUTION: The non-ferrous end tab 1A for welding is used when joining a first base material 3 to a second base material 5 by arc welding. The end tab includes: an extended wall 21 which continues to the groove face 7a of the first base material 3 and on which a groove extension face 19 extending along a weld line L is formed; and a molten metal flow-stopping wall 25 which is provided protrusively from the extended wall 21 so as to intersect with the extension line EL of the weld line L at the end of the groove extension face 19. The starting point of welding can be shifted on the groove extension face 19 by using the end tab 1A. Thereby, the weld penetration defect or the like easy to generate at the starting point can be let out outside the first base material 3, so that the weld joint 11 of the first and second base materials 3 and 5 is robustly joined. COPYRIGHT: (C)2010,JPO&INPIT |
