The amount of heat that is generated between the shoulder and the work piece is one of the factors that determines the quality of the treated zone that is produced by friction stir processing (FSP). In light of this, having an awareness of the dispersion of heat and acquiring the temperature contours would be helpful in gaining an overall comprehension of the FSP technique. When running the friction stir welding (FSW) simulation, the rotational speed of the tool is either set to 320 or 400 rpm, and both of these speeds allow for some slippage between the shoulder and the work piece. The results of the computational research indicate that the temperature field that is present when the FSW process is being carried out is dispersed in a manner that is symmetrical with regard to the welding line. The primary objective of this study is to conduct research on the temperature shift that takes place on the plate’s surface as well as in the heat affected zone after FSW has been performed on a plate composed of SA516 Gr. 70 steel. When it comes to thermal modelling of processes, boundary conditions are an essential component in establishing the overall temperature profile of the system. According to the findings of the virtual experiments that were carried out for the purpose of this study, it was discovered that the peak temperatures reached during the welding process were significantly higher on the advancing side of the joint than they were on the retreating side.

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