Simulation of chip formation during high-speed cutting

Abstract

The purpose of this work is the modeling and simulation of shear banding and chip formation during high-speed cutting. During this process, shear bands develop where thermal softening dominates strain- and strain-rate-dependent hardening. This occurs in regions where mechanical dissipation dominates heat conduction. On the numerical side, we carry out a systematic investigation of size- and orientation-based mesh-dependence of the numerical solution. The consequences of this dependence for the simulation of cutting forces and other technological aspects are briefly discussed.