This study is results of single-and two-spot resistance spot welding for spec steel. Test specimens were welded horizontally or vertically according to the rolling direction of base metal in two-spot welding. About whole occasions, measured acoustic e...
This study is results of single-and two-spot resistance spot welding for spec steel. Test specimens were welded horizontally or vertically according to the rolling direction of base metal in two-spot welding. About whole occasions, measured acoustic emission(AE) signals are analyzed. As the results, in the case of two-spot welding, horizontal type increased elongation more than vertical type in tensile-shear test. Therefore, could know that it is profitable structurally that consider direction(or arrangement) of nugget of according to direction, if secondary process attains since resistance spot welding.