Study on Temperature Effect in Micro-Cutting Process

A coupled thermo-mechanical model is used to simulate two-dimensional orthogonal cutting process based on simulation model of micro-cutting. The temperature effect in micro-cutting process is studied deeply through FEM combined with micro-cutting experiments. The results indicate that cutting temperature decreases at the tool-chip interface with reduction in uncut chip thickness at high cutting speed and large uncut chip thickness. The temperature drop tends to have a hardening effect on the material strength, which in turn causes an increase in the specific cutting energy.