An Assessment of Non Consumable Welded Joint- Friction Stir Spot Welding

Abstract

Friction stir spot welding (FSSW) is a pressure weldingprocess where the workpieces are operated below their melting points. FSSW is one of the processes derived from Friction Stir Welding (FSW) Technology. Friction stir welding was invented by The Welding Institute (TWI) in 1991 and proven experimentally. FSSW is found to be environment friendly and a very efficient process. This process is rapidly growing and is replacing the resistance spot welding. FSSW have various applications which include industries like automobile, aerospace, ship building, construction and electrical.FSSW has been successfullyused to join several materials used in the above mentioned industries. Inthis review, FSSW studies are briefly summarised in terms different parameters for joining processes.