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Present day metal cutting industry has to meet the challenges of productivity and the quality of the machined parts during the turning processes economically. In the present work, an attempt has been made to develop a model and predict the tool wear and nodal temperature of hard turned AISI D3 hardened steel using Response Surface Methodology (RSM). The combined effects of cutting speed, feed rate and depth of cut are investigated using contour plots. RSM based Central Composite Design (CCD) is applied as an experimental design. Al2O3/TiC mixed ceramic tool with a corner radius of 0.8 mm is employed to accomplish 20 tests with six centre points. The adequacy of the developed models is checked using Analysis of Variance (ANOVA). Main and interaction plots are drawn to study the effect of process parameters on output responses.

Effect of Machining Parameters on Tool Wear and Nodal Temperature in Hard Turning of AISI D3 Steel