| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gas shield arc welding method and a welding apparatus, which can form a welding bead with a large leg length excellently and efficiently, using a preceding electrode and a successive electrode. <P>SOLUTION: The welding method includes forming a first welding pool 15 by the preceding electrode 11 and a second welding pool 25 by the successive electrode 21, wherein the distance between the electrodes of both the electrodes 11, 21 are set to be 50-150 mm, welding is performed by inserting a filler wire 31 into the first welding pool 15. The welding apparatus includes the filler wire 31 arranged between the preceding electrode 11 and the successive electrode 21, wherein the distance between the electrodes 11, 21 is set so that the first welding pool 15 by the preceding electrode and the second welding pool 25 by the successive electrode 21 depart from each other, the filler wire 31 is arranged spacing at a predetermined distance from the preceding electrode 11 so as to be inserted into the first welding pool 15. <P>COPYRIGHT: (C)2012,JPO&INPIT |
