Shear Bands in Ultra-Precision Diamond Turning

Shear bands are common phenomena reported in various metal-working processes, such as forming, forging, hot rolling, cold rolling and high-speed cutting. In the micro-cutting process, there is strong experimental evidence that the fluctuation in cutting force is related to the variation of chip thickness and is related to the shear plane angle of the metals being cut. This chapter investigates the mechanism of elastic strain-induced shear bands and regularly space shear bands with a generalised model for shear angle prediction.