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

In this work, a comparison of surface roughness obtained by PVD, CVD coated carbide inserts and uncoated carbide inserts during dry turning of TI–6Al–4V alloy. Titanium alloys are most fascinated topic so the Machining of titanium alloys as aerospace material that has extremely strength to weight ratio and resistant to corrosion at high-elevated temperature. The turning parameters evaluated are cutting speed (80,100,120 m/min), feed rate (0.05, 0.10, 0.15 mm/rev), depth of cut (0.5, 1.0, 1.5 mm). Experimentation was carried out using Taguchi’s L9 orthogonal array. Surface roughness was measured for each experimentation. When compared to uncoated carbide inserts, the coated carbide inserts demonstrates significantly improved surface roughness and also compared PVD and CVD carbide insert, the PVD carbide inserts demonstrates significantly improved surface roughness.