Numerical Simulation of Temperature Field in Friction Stir Welding of 6061 Al Alloy/AZ31 Mg Alloy Dissimilar Metals
The three-dimensional heat transfer model of friction stir welding of 6061 Al alloy/AZ31 Mg alloy dissimilar metals was established by COMSOL Multiphysics finite element software,and the temperature field of the friction stir welding was simulated.And the influence of the welding speed and rotation speed of the stirring head on the temperature distribution was analyzed.The results show that the temperature field of the high temperature area is elliptically distributed during the welding process.The highest temperature is located at the side of the magnesium plate behind the stirring head,and the temperature of the contact area at the shaft shoulder is particularly prominent.With the increase of welding speed or the decrease of rotation speed of the stirring head,the area of the high-temperature region decreases,the peak temperature decreases obviously.The effect of welding speed on the temperature field is more significant than that of the rotation speed.
friction stir weldingheat transfer model6061 aluminum alloyAZ31 magnesium alloytemperature field
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