Prediction of cutting forces from an analytical model of oblique cutting, application to peripheral milling of Ti-6Al-4V alloy

摘要: In this work, a predictive machining theory, based on an analytical thermomechanical approach of oblique cutting (Moufki et al., Int J Mech Sci 42:1205–1232, 2000; Moufki Mach Tools Manuf 44:971–989, 2004), is applied to the peripheral milling process. The material characteristics such as strain rate sensitivity, hardening and thermal softening are considered. primary shear zone, coupling inertia effects accounted for. Due fact that reference frame associated zone moves with tool rotation, analysis inertial has been performed. As heat conductivity Ti-6Al-4V low, process chip formation supposed be adiabatic; thus, problem equations reduced system two non-linear which solved numerically by combining Newton–Raphson method Gaussian quadrature. present leads three-dimensional force model for end operations. Calculated experimental results extracted from literature compared several operations: full immersion, up-milling down-milling different conditions. Although was established stationary conditions continuous chips, it gives acceptable predictions titanium alloy chips usually segmented. proposed appears interesting alternative mechanistic requires many tests determine coefficients.