A Review paper on Friction Stir Welding (FSW)

Abstract

Friction stir Welding is the type of welding used as a solid state joining process for materials that is different alloys of aluminum, magnesium etc. and also for hard materials like steels because it deflects the common problems obtained in conventional welding processes. The reality that joining of alloys could be usually faced problems in many sectors that includes automotive, aerospace, ship building industries, electronics etc. where fusion welding is not possible due to large difference in physical and chemical properties of the components to be joined. Difficulties in conventional welding processes is porosity formation, solidification cracking, and chemical reaction may arise during welding of dissimilar materials although sound welds may be obtained in some restricted cases with special aids to the joint design and preparation, process factors and filler metals.