Effect of Welding Parameters and Tool Pin Profiles on The Microstructural and Mechanical Properties of Friction Stir Welded Joint: A Review

In the present world, the use of magnesium is done because of its high strength, light weight, better chemical properties and better recyclability. Here, research work has been carried out on magnesium alloy AS41A which has good creep resistance, high strength, better castability and heat resistance. In this research work, the review of the process Friction Stir Welding has been done. Few of the important considerations to be understood here are the temperature distribution and metal flow properties during the stirring process, process parameters and the tool pin profiles. Also, it has been studied and reviewed that threaded conical tool pin profile and hexagonal tool pin profile are the optimum tool pin profiles. Also, the rotational speed of 350 rotations per minute and 100 mm/minute are found to be optimum from the literature. The load applied is found to be 7.3-9.8 kN. Thus, the review of the literature done here will help in selecting the optimum tool pin profile and welding parameters to design the best weld in present research work.