Scarf Joining of Aluminium to Copper Plates by Explosive Welding Process and Investigation of Interface Properties

It is possible and practicable to make a joint in similar materials, whereas, bonding of dissimilar metals in order to achieve applicable components has been subjected to many investigations. The purpose of this study is to produce scarf joint through explosive welding process (EXW) between chamfered end of aluminium and copper plates. Macroscopic observations and mechanical properties of interface, such as bond shear strength and micro-hardness was carried out on the bond interface. Mathematical models were adopted for the interface properties of the scarf joint to make relationship between the bond shear strength and explosive loading ratio with regression method and variance analysis. These models verify in explosive cladding processes. Consequently, mathematical model which is based on scarf joints in dissimilar metals could predict bond properties of cladding metals under desired explosive loading and flyer plate thickness. This led to establishment of appropriate model to explain shear strength- Explosive loading ratio.