Performance Evaluation of PVD Coated Ceramic Insert Using AISI 52100 in Hard Turning

ABSTRACT Now days, Hard turning technology has wide application at industrial level due to its several benefits over the grinding process. The slow & cost-intensive grinding process is being replaced with finish hard turning in many industrial applications such as bearings, transmission shafts, axles, and engine components, flap gears, landing struts and aerospace engine components. Hard turning is a technology that can be used in finishing operations for the hardened steel which have hardness above 45 HRC. In the present work attempt has been made to evaluate the performance of mixed ceramic PVD-coated insert during hard turning of AISI 52100 steel under different cutting conditions. The analysis of variance is applied to study the effect of cutting speed, feed rate and depth of cut on tool flank wear, surface roughness, radial cutting forces and temperature on tool tip. The analysis of variance was used to analyze the input parameters and their interactions during machining. The developed model predicted response factor at 95% confidence level.