ABSTRACT
This chapter summarizes the basic concepts to understand the formation of the weld and its process parameter which functions to give such a permanent joint. The friction stir welding (FSW) process of steel exhibits a variety of advantages crosswise over numerous mechanical segments when compared with ordinary combination-welding methods. Super-abrasives are materials that are shaped in presses under outrageous temperature and weight. Polycrystalline diamond and Polycrystalline cubic boron nitride are the two super-abrasives that are used as a part of FSW. Lower welding speed resulted in higher temperature, and a slower cooling rate in the welding zone causes grain growth, which ensued in low tensile strength and toughness of impact. Controlling the FSW procedure keeping in mind the end goal to create fantastic weld joints is a test because of the sum of considerations related to the FSW procedure.
