Investigation of microstructure and mechanical properties of RSW (resistance spot welding) welded aluminium alloys

The aluminium alloys that are different from the other wrought aluminium alloys with respect to their weldability, namely 6061(AlMgSi) and 5754(AlMg), are often used in aerospace industry today.These alloys are combined with different welding parameters and through RSW method. The micro-structural changes occuring at the joint areas of the aluminum Materials of different chemical compositions combined through different Welding parameters were examined with microstructure microscopeTo identify the mechanical properties,micro-hardness measurements were made. Tension tests were applied on the specimens obtained from the welded regions. The values obtained from the mechanical tests and the micro-structural changes obtained from micrographs were analyzed.