No abstract

Friction stir spot welding is a spot welding process and an alternative joining method of friction stir welding technique. The application of a FSSW alloys in aerospace, high speed train manufacturing, ship building and automotive industries is increasing gradually. The similar joining of aluminum alloy Al6061 with the plates of 4 mm thickness is going to carried out by friction stir spot welding. The objective of this research is to enhance the mechanical properties by changing the joint pattern of the welding joints and also optimizing the various process parameters such as tool rotation speed and dwell time for higher joining strength. In present topic an attempt on the different configuration of FSSW lap joints is going to achieve like in normal pattern in single spot and double spot, chain spot pattern etc and simultaneously the different strength, tensile load values and stresses developed in the joints will be discovered. And to check the possible properties change in the plates after welding process.