Process forces and heat input as function of
process parameters in AA5083 friction stir welds
process parameters in AA5083 friction stir welds
(1. Engineering Division, National Metallurgical Laboratory, Jamshedpur 831007, India;
2. Mechanical Engineering Department, Indian Institute of Technology Delhi, Delhi 110016, India)
2. Mechanical Engineering Department, Indian Institute of Technology Delhi, Delhi 110016, India)
Abstract: AA5083 friction stir welds were produced using systematic experimental design, the process forces and heat input with varying parameters were studied. Helpful empirical models were developed in designing friction stir welding (FSW) tools and FSW welders. These models may be further helpful for making process parameter choice for this sort of alloy, defining welding program and control of process parameters by using computer numerical control friction stir welding welders. The results show that tool rotational speed, welding speed and tool shoulder diameter are most significant parameters affecting axial force and heat input, while longitudinal force is significantly affected by welding speed and probe diameter.
Key words: friction stir welding; AA 5083; tool design; heat input; process forces; process parameters