Parametric Analysis of CNC Machine and Performance Evaluation of Titanium Alloy using Coated & Uncoated Carbide Insert

In this work, a comparison of MRR obtained by PVD, CVD coated carbide inserts and uncoated carbide inserts during dry turning of TI–6Al–4V alloy. So the present work is focused on the analysis of optimum cutting conditions to get highest material rate for PVD & CVD coated carbide and uncoated carbide inserts while dry machining of TI–6Al–4V alloy. In this work, the turning parameters evaluated are feed rate (0.05, 0.10, 0.15 mm/rev), depth of cut (0.5, 1.0, 1.5 mm) and cutting speed (80,100,120 m/min). Experimentation was carried out using Taguchi’s L9 orthogonal array. MRR was measured for each experimentation. When compared to uncoated carbide inserts, the coated carbide inserts demonstrates significantly improved MRR and also compared PVD and CVD carbide insert, the PVD carbide inserts demonstrates significantly improved MRR.