Turning and grinding as a source of microstructural changes in the surface layer of hardened steel

The paper presents results of investigations concerning the surface layer alterations in hardened steels induced by turning with alumina and CBN edges and grounding with CBN grinders. The surface integrity parameters such as microstructure (investigated also with transmission electron microscopy (TEM) methods), mesohardness, stress level and roughness were measured and analysed. Influence of turning and grinding parameters on the above characteristics have been considered.