Investigation of Fracture Surface of Different Metals Welded by Resistance Spot Welding

Abstract

In this study, dissimilar resistance spot weldability of DP steel and 1xxx series aluminium metal which is used extensively in automotive industry was investigated. For this purpose, DP 450 Steel and Al1050 alloy were selected. DP steel is galvanized. The aim of this study is to investigate the weldability of these two different types of metals and to detect elemental changes in the weld metal formed. For this purpose, fracture surface SEM and EDS analysis were performed.