Abstract
The metal cutting process has been signed an improved surface finishing of components to minimize the assembling difficulties. The machining was performed in EN24 alloy steel using carbide inserts. The Central Composite Design (CCD) of Response Surface Methodology (RSM) was followed to determine the number of cutting trials. Twenty cutting trials were carried out by varying cutting speed, feed rate and depth of cut. The experiment results were analyzed in Design Expert −11 software and the developed regression models verified the competence of each input variable on responses. This research identifies the optimized level of cutting parameters to obtain better results on the surface roughness (SR), cutting tool temperature (CTT) and metal remove rate (MRR). The multi responses were enhanced with aid of a single solution by using the desirability approach. Optimal cutting parameters were found at 1000 rpm, 0.1 mm and 0.75 mm speed, feed rate and depth of cut respectively. The input factor of speed reveals the most significant contribution on surface finish and cutting tool temperature, however, depth of cut implies a better contribution to metal removal rate. The validation trial results are agreed with the predicted values.
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