Abstract
In this study, 6061-T6 aluminium alloy plates in 4mm thickness that are particularly used for aerospace and automotive industries were welded using Tungsten Inert Gas(TIG) welding and Friction Stir Welding(FSW) methods as similar joints with one side pass with parameters of varying tool rotation, weld speed and 2.3 degree tool tilt angle. Tensile tests results showed high yield stress values for FSW joints. The weld zones cross sections were analysed with light optical microscopy (LOM). Micro Vickers hardness test gave the required result for FSW welded and TIG welded AA6061-T6 aluminium alloy plates. While fatigue test results showed all similar welded joints have fatigue strength close to each other.
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