| 摘要 |
Disclosed in the present invention is an arc welding apparatus capable of reducing working man-hours by using a multi-pass welding method for arc welding base metal. Provided in the present invention, therefor, includes: a welding torch to conduct welding while being applied with power supplied through a wire; and an auxiliary wire supplier which follows the a melting pool formed by the welding torch, and which successively supplies auxiliary wires so as for the auxiliary wires to melt down in the melting pool. |
