| 摘要 |
The present invention relates to a hybrid welding method for a galvannealed steel plate. Specifically, the object of the present invention is to provide a welding method and a shielding gas used therefor that can prevent surface defects (pits) generated on the bead surface and burn-through while lap-welding. Furthermore, another object of the present invention is to provide a welding method and a shielding gas used therefor wherein bead irregularities (defects in formation of a continuous bead) such as humping is not present, and generation of pits or undercuts on the bead surface can be prevented. |
