Abstract
The Friction Stir Processing (FSP) parameters such as spindle speed, feed, tilt angle and tool pin profile possess an impact on the mechanical properties of FSP samples significantly. The experiments were designed based on Taguchi’s technique. The investigation was set to analyze and develop an empirical model for the prediction of output responses namely ultimate tensile strength (UTS), yield tensile strength (YTS) and percentage of elongation (% E) using response surface method (RSM). The influence of FSP parameters on tensile parameters/properties of friction stir processed samples are studied in detail. Out of five different tools selected, FSP samples processed using hexagonal tool pin profile exhibits maximum tensile strength, YTS and percentage elongation whereas cylindrical tool pin profile have the lowest of the output responses. Multiple performance optimization was carried out to optimize the parameters using desirability approach based RSM. The analysis of results was carried out using Analysis of Variance (ANOVA) to assess the adequacy of the response surface methodology. The results of the model indicate that the experimental values were in close proximity to the predicted values at 95% confidence level.
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