Investigation of tool wear and surface roughness on machining of titanium alloy with MT-CVD cutting tool using Desirability function analysis

Abstract

In this study, machining titanium alloy (grade 5) is a carried out using MT-CVD coated cutting tool. Titanium alloy possess superior strength to weight ratio with good corrosion resistance. Most of the industries used titanium alloy for manufacturing various types of lightweight components. The parts made from Ti-6Al-4V were largely used in aerospace, biomedical, automotive and marine sectors. The conventional machining of this material is very difficult due to low thermal conductivity and high chemical reactivity properties. To achieve good surface finish with minimum tool wear of cutting tool the machining is carried out using MT-CVD coated cutting tool. The experiment is carried out using of Taguchi L27 array by three cutting variables with three levels. To find out the optimum parametric setting Desirability function analysis (DFA) approach is used. The analysis of variance is studied to know the percentage contribution of each cutting variables. The optimum setting results calculated from DFA was validated through the confirmation test.