Machining of titanium alloy grade 5 (Ti-6Al-4V) by using PVD coated cutting tool insert

Titanium alloys are metals obtained by the homogeneous mixture of titanium and other chemical elements (metal or non-metalloids). Titanium alloy (Ti-6Al-4V) has been widely used in aerospace and medical applications and the demand is ever growing due to its applications.In the present work the basic material used is Titanium alloy (Ti-6Al-4V) and micro grooves are prepared on the carbide tool with the help of LASER and coated with TiN (PVD method of coating). The experiment is done on the CNC turning machine by varying the input parameters such as depth of cut, cutting speed and feed rate. The different cutting conditions like dry, wet with uncoated carbide tool and their results are compared with the PVD coated carbide tool. The output parameters that are checked during this work are chip formation, surface roughness, temperature, MRR and vibration with three set of machining parameters. The result is showed that good surface finishing with less temperature formation is observed with PVD coated carbide tool. This type of machining will be encouraged as an eco-friendly process.