Analysis of the optimization of tool geometric parameters for milling of Inconel718

Correct selection of cutting parameters is the most effective approaches to achieve optimum machining process. An attempt is made to investigate the machinability of Inconel718 based on the milling simulation and experimental study. The sub micron grain cemented carbide is used as the cutting tool, and the parameters such as milling force, milling temperature, tool wear and workpiece surface quality are investigated. Under the same cutting parameters and other cutter geometry parameters, the study analyzes the different helix angles, the milling force of rake angles in milling cutter, milling temperature, tool wear and workpiece surface roughness. The experimental results show that the smallest value of cutting force and cutting temperature, the best value for surface roughness, and the smallest tool wear value can be simultaneously achieved by optimization of cutting parameters, which is 45-degree helix angle and 12-degree rank angle. This study achieved the optimisation of tool geometric parameters for milling of Inconel718 using sub micron grain cemented carbide cutting tool.