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Modeling and Analysis of Ball End Milling Parameters of Inconel 718 Cantilevers Using RSM

Nandkumar N. Bhopale, Raju S. Pawade

This paper is aimed at an experimental investigation of the ball end milling of Inconel 718 cantilevers, design and modeling of the process with the aid of the response surface methodology (RSM) utilizing the experimental data.TheExperiments were conducted according to the central composite design (CCD) with four factors of spindle speed, feed, workpiece thickness and workpiece inclination with toolpath orientation. The responses measured for each experiment were deflection (Def.) at free end, the experimental data was analysed to obtain the effect of various parameters on the response. The results of analysis of variance (ANOVA) indicated that the proposed mathematical models have been carried out to ensure the validity of the developed model. Confirmation test experiments have also been done to compare the experimental results and model result. The response surface model was found to be in good agreement.