New Modeling and Numerical Approach of the Temperature Evolution in a Carbide Insert in Milling Machining

A numerical model is proposed to predict the evolution of the tool temperature during a dry milling process using the finite volume method. This approach considers the secondary shear zone (tool-chip interface) and two distinct tertiary shear zones (tool-workpiece interfaces). Heat fluxes are calculated using experimentally measured cutting forces and linear velocity fields at the tool-chip and tool-workpiece interfaces, while considering the temperature dependent thermal properties of the tool’s substrate and coating. The simulated temperature results are compared to those measured in a previous experiment and the influence of the different interfaces on the evolution of the temperature field is studied.