Study on the Effects of Rotational and Transverse Speed on Temperature Distribution through Friction Stir Welding of AA2024-T3 Aluminium Alloy
Keywords:
friction stirs welding, temperature distribution, numerical, simulationAbstract
A nonlinear three-dimensional thermal process was studied experimentally and numerically. The present study aims to investigate the distribution of temperature in the joint of aluminum AA2024-T3 plates throughout the friction stirred butt. The experiments were conducted at a constant tool tilted angle of 3 o under various rotational speeds (690, 1130, 2000 rpm) and feed rates (20, 32, 45 mm/min). The highest temperature of 860 K was obtained at the experimental condition of 2000 rpm, 20 mm/min, 20 dwell times, and 3° tilt angle. This value was less than the melting point temperature of Al 2024 alloy (911 K). The comparison between the numerical and experimental results of temperature distribution showed a good agreement. The deviation between the theoretical and experimental results for the maximum and minimum rotational speed and feed rate was (7, 10 %) and (5, 12 %), respectively.