Author : Anil Kumar Deepati, Sujoy Tikader, Himanshu Chaturvedi and Pankaj Biswas

Friction stir welding (FSW) has been the most attracting solid state welding process as it serves numerous advantages like good mechanical, metallurgical properties etc. Non weldable alluminium alloys like 5XXX, 7XXX series can be joined easy using this process. In this present study, experiments were successfully performed to evaluate mechanical properties of FSW on dissimilar alluminium alloys i.e. AA 5083 to AA1100. Tensile strength and micro hardness for different process parameters are reported. It was noticed that in FSW of this combination of dissimilar alloy with tool made of H-13 tool steel, friction is the major contributor for the heat generation. It was seen that tool rotational speed and traverse speed have significant effect on tensile strength of FSW.

Keywords: FSW, solid state welding, mechanical properties, cylindrical pin profile, tapered cylindrical pin tool, AA1100, AA5083, micro hardness.

Article published in International Conference on Advances in Mechanical Sciences 2014, Special Issue-2 (Feb 2014)