Insights into the thermo-mechanics of orthogonal nanometric machining

► Atomistic thermo-mechanics of nanomachining between diamond and copper. ► High speed MD nanomachining results in significant inertial tool force increases. ► Chip temperature increases most with machining velocity at low machined thicknesses. ► Chip temperature boundary layers can only persist at extremely high cutting speeds. ► There isan apparent isothermal to non-isothermal nanomachining transition at ≈50 m/s.