Hard Cutting and Diamond Burnishing of 100Cr6 Steel Bearings

The paper deals with research concerning optimal technological parameters in diamond burnishing after hard turning by standard tool geometry and by wiper geometry. Burnishing is a less known method, by which the surface of workpiece is finished by a harder tool, without chip removal. Experiments focus on the surface roughness of workpiece, at combination of feed (f) and burnishing force (Fp). We measured also machining forces (Fc, Ff, Fp) at hard turning. Workpiece was made of 100Cr6-type bearing steel with hardness of HRC64.