Phenomenological aspects of a modified fragmentation of material using active surface

The main point of this paper is to show that treating the study of the grinding process in a phenomenological manner gives an opportunity to analyze the friction effects in this process. It indicates the importance of having a mechanism for approaching surface irregularities of the tribological couple elements which displace mutually during the grinding. This creates an indirect link between this concept and the elementary tribological criteria [1], as to the relation of an average immersion depth h [μm] of the top of surface roughness into the counter surface to the radius r [μm] of this top. It is consequently related to the maximum or average height parameters of the cutting wheel surface roughness (Rt, Rz), the average grain size a [μm] and the average distance between grains Lav in the grinding wheel respectively. It has been concluded in the experimental research that the grinding forces Ft, Fn and of the energetic intensity material removal KE [mm/N] are dependent on cutting wheel surface roughness parameters.