A Review Study on Dissimilar Metal Weld of stainless steel and copper on TIG Welding

This review paper explains the basic principle of dissimilar metal welding and methodology of Gas tungsten arc welding (GTAW) also known as tungsten inert gas (TIG) welding. Dissimilar welding of metals has gained lots of interest from researchers worldwide due to its numerous benefits. This paper presents a review of the recent works done on TIG welding of dissimilar metals with the focus on properties, structure, and performance relationships. It also includes the influence of welding parameters on the quality of joints. The papers for investigation in this work were considered from 2009 to date 2021. A total of 20 research papers were chosen for our consideration after an in-depth examination of several such papers. There is a growing need for dissimilar welding due to its various benefits. Welding of dissimilar Metal is very challenging due to the dissimilarities in their chemical, physical, and metallurgical properties. Although other welding processes such as solid-state welding processes and some fusion welding techniques such as laser welding and electron beam welding have produced high-quality dissimilar Metal joints, their application has been limited due to their high cost. Consequently, the TIG welding technique has been widely employed for welding of dissimilar materials because of its low cost, stability, and high quality of weld produced. In this paper covers the all the technical aspects which affect the process and quality of GTAW joint. Effect on all the types of joint configuration is studied. All the technical aspects of GTAW all material is covered. Effect on welding quality of basic parameters like Current, Voltage, Welding speed, Gas flow rate has been studied. Finally, the area on which further more research can be carried out are identified.