Examination of Joint Integrity in parallel plate configuration of explosive welded SS-Al combination

Abstract Explosive welding is one of the high energy rate joining processes of similar and dissimilar metals. In this process, the force of controlled detonation is used to accelerate one metal plate into another creating an atomic bond. This process is capable of joining the large surface area as due to the distributing ability of high energy density available in the explosive over the welding area .This paper comprises of evaluation of joint obtained by joining of Aluminium and Stainless Steel using explosive welding process through ram tensile testing method and soundness of joints analysed using Ultrasonic Flaw Detector. Micro-structural analysis of joint interface was done using optical microscopy and scanning electron microscopy. The Ram tensile test results clearly showed that the explosive welded joint strength is higher than that of the weaker parent metal’s tensile strength.