Paper Title
Optimization of Machiningparameters of Nickel-Based Inconel 718 Super Alloy With Cemented Carbide Tools

Abstract
In this study, Inconel 718 material was machined on CNC lathe and the workability of tool wear, cutting forces and surface roughness were taken into consideration. 18 pieces of chip removal test performed at d = 2 mm chip depth and f = 0.20 mm / rev. The feed rate was kept constant. Cutting speed, carbide tools V = 15, 30, 45, 60, 75 m / min. And two different geometry (square and round) was used. Uncoated carbide SECO 883, V BB = 0.08 mm, Fc = 1149 N, Ra = 0.45 üm in four different cemented carbide cutting tools, V = 45 m / min at cutting speed in terms of tool life and surface quality and Tc = 15.24 minutes of chip removal time and 273 cm3 metal removal volume. While the SECO 883 was found to be more suitable for surface treatment, the performance of the inconel 718 at the cutting speed of SECO 560, V = 60 m / min was found to be better in rough turning operations where the surface quality was secondarily considered. By using Inconel 718, side edge wear, notch and plastic deformation in coated carbides, side edge wear and cracking in uncoated carbides were more dominant. All four carbide cutting tools showed resistance to abrasion at V = 15 m / min. The 3 carbide tools, except the coated carbide KC 935, performed well at the cutting speed V = 30 m / min. SECO 560 with SECO 560 coated with coated carbide at 45 m / min. At 60 m / min, only three other cutting tools that were able to withstand the SECO 560 wear were considered inadequate. At 75 m / min, all four cutting tools were rapidly eroded. Keywords - Machinability, Inconel 718, Surface roughness, Cutting force, Wear