Study on mechanical behaviour of friction stir welded 6082-T6 aluminium alloys

The Mechanical Behaviour of Aluminium 6082-T6 alloy are investigated using friction stir welding (FSW) Process, aluminium 6082-T6 alloy is a light medium strength alloy with good corrosion resistance, mostly used in wide variety of high stress applications like fuel liners, radiators and marine fittings.the scope of process parameters considered in this work are tool rotational speed chosen 800–1200 rpm, the traverse speed was chosen 100–200 mm/min and axial force was chosen 8 KN. Pin profile was chosen as straight Cylindrical Tool. The thermal model is designed and analysed in the ANSYS using transient thermal analysis. The strength and micro-structural aspects of processed joints are studied.weldment made at 1000 rpm, 2.5 mm/sec and 8 KN which gave the best ultimate tensile strength.measured hardness values are in the range of (84–88) in nugget zone, (70–75) in HAZ region and (62–66) in parent material. The Heat value of 880 W was calculated for the welding speed 1000 rpm, 2.5 mm/sec and 8 KN by using mathematical expression.