보조 강철전극을 이용한 전기 저항 스폿용접에 관한 연구

Abstract

Based on the background of strengthening environmental regulations and reducing fossil fuel use, this study discusses the applicability of electric resistance spot welding using auxiliary steel electrode to efficiently weld increased light metal to existing steel plates. The preheating effect of nonferrous metal by auxiliary heating was identified through computer simulation, the range of preheating conditions was reduced, and a peel test was conducted as a simplified test method to find the welding conditions. The current level of new technology and applicability of related industries were identified through spot welding analysis such as final tensile test and cross-sectional analysis. As a result, it was proved that, although additional experiments on the improvement of equipment and welding conditions used in the experiment would be required, the strength required by the relevant industry was satisfied only in areas other than important areas requiring rigidity.