| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fillet arc welding method of a galvanized steel sheet in which pore defects such as pit blow hole, and poor welding such as undercut can be inhibited, and further gap resistance is favorable in arc welding of a galvanized steel sheet. <P>SOLUTION: The lap fillet arc welding method of a galvanized steel sheet and a welded joint are characterized in that an Si content in a weld metal is at most 0.5 mass%, and a sum total of a content of Si and Al in a steel sheet of an upper plate is at least 0.35 mass% in lap fillet arc welding of a galvanized steel sheet. <P>COPYRIGHT: (C)2012,JPO&INPIT |
