Comparative Evaluation of flank wear of uncoated, AlTiN and TiSiN Coated Cermet Insert by Machining of D2 Tool Steel

Abstract

The life of a cutting tool is one of the major parameters which affects the cost and quality of machining. Hence manufacturing industries putting lots of effort and resources to increase tool life and productivity. This research focuses on increasing the life of cutting tool insert by suggesting new coating material for turning harden metals. An experimentation analysis is carried out on uncoated, conventional coated (AlTiN) and newly suggested coating (TiSiN) cermet insert. Experiments were carried out by selecting 90, 183, and 245 m/min as cutting speed, 0.2 mm/rev as feed, and 0.25 mm depth of cut. The result shows all three inserts give good performance at 90 m/min cutting speed. Tool life of AlTiN coated insert shows 20 min and TiSiN coated insert shows 22.21 min at 183 m/min cutting speed. At cutting speed 245 m/min all three types of cutting insert break even after 1 min of machining.