Investigation on the fan-shape distribution of surface roughness on diamond-turned single crystal germanium

摘要

The cutting force distribution models of diamond-turned single crystal germanium are established. The formation mechanisms of the fan-shape distribution of surface roughness on diamond-turned surface of single crystal germanium are investigated. The homogeneous smooth surface of roughness value R_a = 0.07— 0.009 mu m is obtained by fly cutting of the single crystal germanium, which was performed in the most favourable cutting direction.