• Nagaraj
• Vishal Mandre
• Patil Ganesh
• Shashidhar G K
• N Naga Suresh Babu

Cutting tool is a vital part in machining process .The quality of machining and its performance depends on several factors such as cutting forces, speed, feed, depth of cut working under various environments. Due to the development in” hard to machining of materials” there is a need for improvement of cutting tools and its performance. The main aim of this project work is to study and optimize the performance of coated tungsten carbide turning tool during dry machining of high hardness EN24 grade alloy steel. With the help of plasma assisted physical vapor deposition (PVD) coating method, Titanium nitride and Aluminum Titanium Nitride coatings were developed with a thickness 2-4 microns on uncoated tungsten carbide inserts. Taguchi design of experimental method was used to optimize process parameter using L9 orthogonal array, the experimental work was carried out by varying the input parameters like cutting speed, feed rate, depth of cut at different levels, which influences cutting forces and material removal rate. SEM analysis were studied to characterize the coated cutting tool. An improvement of 83.12% in the material removal rate with Titanium nitride coatings and 18.18% improvements in Aluminium titanium nitride were observed

PVD Coatings, Taguchi Design of Experiment, Orthogonal array, machinability, Material Removal Rate, Cutting Forces.

"MACHINABILITY STUDIES OF TITANIUM COATINGS ON TUNGSTEN CARBIDE INSERTS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.161-167, May-2019, Available :http://www.jetir.org/papers/JETIRBZ06026.pdf

"MACHINABILITY STUDIES OF TITANIUM COATINGS ON TUNGSTEN CARBIDE INSERTS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp161-167, May-2019, Available at : http://www.jetir.org/papers/JETIRBZ06026.pdf