Abstract
Majority of the automotive companies are trying to develop thin sheets of aluminium alloys for various applications to utilize their strength to weight ratio. Among the Aluminium 5xxx series, Al 5052 is having high strength, formability, corrosion resistance and good mechanical properties. In the present work, 1 mm thick Al 5052 sheets were welded by different techniques like Tungsten inert gas (TIG) and Friction stir welding (FSW). After performing the weld by both the techniques with different weld parameters, mechanical properties were compared using tensile and Microhardness tests. Microstructural analyses was studied to understand the metallurgical behaviour of the welding techniques employed. Based on the studies, the Friction stir welded sample has better mechanical properties than the Tungsten inert gas welded sample due to solidification cracks and porosity defects. A comparative study of FSW and TIG is made in the present study, and the results are discussed.
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