Analysis of S.S.43100 by Turning of Ti16Zr PVD Coated Tool Inserts and Optimization of Surface Roughness Using Taguchi Method

Abstract

 The performance of PVD coated carbide inserts for various machinability aspects during machining of hardened alloy steel AISI 43100, under a dry cutting environment. Spindle speed, feed, and depth of cut were considered as major governing parameters. Workpiece surface roughness, machining forces (Fx, Fy, Fz) were taken as measures of the performance estimation of PVD coated (Ti16Zr )cutting inserts in this work. All the input variables were observed to have influence over workpiece surface roughness and cutting forces in the case of coated carbide inserts. In the current research, the effects of machining parameters on the dry turning rotation of the SS43100 with uncoated and Ti16Zr coated tool inserts have been investigated and the optimal machining specifications are computed using the Taguchi L27 experimental design. The Regression analysis with regression equations is mentioned and inspected the significance of individual factors for responses. The machining operations can be performed at a higher spindle speed(250r.p.m.,450 r.p.m.,650 r.p.m.),feed (0.085mm/rev,0.2 mm/rev, 0.45 mm/rev), depth of cut(0.2mm,0.3mm,0.4mm) without compromising results when cermets inserts are used. Carbide exceeded the performance on cutting force and workpiece surface roughness, though carbides outperformed regarding feed and cutting force(FY). The depth of cut was found to be the most significant when feed and cutting forces were concerned, while it was true for radial force using carbides. Speed affected workpiece surface roughness the most. Feed was the most important parameter while the surface roughness of the workpiece was taken into account.