Abstract
Byline: S.M.H. Darwish Spot welding is the best known and most generally used method of resistance welding, as it can be applied to a wide variety of articles by replacing rivets, screws, soldering and brazing. In the present work, spot welding quality namely, mechanical strength and the micro-hardness of the weld nugget, for welding mild steel sheets, are correlated with vibrational behaviour.