• Manigandan Krishnan
• Senthilkumar Subramaniam

The mechanical properties of friction stir-welded aluminum alloys LM5 and LM22, which are produced using the lost foam casting technique, are examined in this study in relation to various tool pin profiles. Tool pin profiles that were taken into consideration were square, triangle, thread, taper, and straight cylindrical. Due to microstructure refinement and porosity reduction, the Friction Stir Welded LM5 and LM22 Aluminum alloys' Ultimate Tensile Strength increased by 15% to 30% for different tool pin geometries, and their percentage elongation also increased significantly. Because of the improved stirring action, it was discovered that the cylindrical threaded tool pin geometry had a greater effect on Friction Stir Weld than other pin profiles.

"Study on Mechanical Properties of Friction Stir Welded LM5, and LM22 Aluminium alloys", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 3, page no.i90-i97, March-2025, Available :http://www.jetir.org/papers/JETIR2503812.pdf

"Study on Mechanical Properties of Friction Stir Welded LM5, and LM22 Aluminium alloys", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 3, page no. ppi90-i97, March-2025, Available at : http://www.jetir.org/papers/JETIR2503812.pdf