Department of Mechanical Engineering, S R Engineering College, Warangal, Telangana, India
A study was made on welding of 4mm-thick aluminum alloy 5083 plates using friction stir welding. Table of experiments was prepared based on abilities of universal milling machine. The Experiments are conducted at different tool rotations speeds 900r/min, 1120r/min, 1400r/min and 1800r/min, the welding speed is at 40mm/min were taken. Analysis is made with the conical taper profile tool. Samples for microstructure analyses, Rockwell micro-hardness measurements and tensile-testing samples were prepared. It was observed that the better mechanical properties were achieved at moderate tool rotational speed, and equip-axed grains obtained at taper profile tool, grain size were obtained half of the base material.
Friction-stir welding, AA 5083, rotational speed, mechanical properties, conical taper profile tool
