Abstract:High purity aluminum and copper were bonded by explosive welding. The bonding plate was nondestructive tested by C-scan. The welding properties of Al/Cu composite plate were analyzed in terms of microstructure and mechanical properties. The results show that C-scan, as a nondestructive testing method, can detect bonding quality rapidly. Existing in combined interface after welding, strip stress zones disappear with no grain growth after heat treatment. Explosive welding can realize the strength weld between high purity aluminum and copper with tensile strength of combined interface of about 43 MPa.