Abstract
This study is carried out as the initial stage of the studies which are done in order to analyze quantitatively the radial wheel wear of grinding wheels in heavy grinding. In experiments, with a view to finding quantitatively out the grinding results for various grinding conditions, the radial wheel wear, the surface roughness, the grinding force and the electric power consumption have been measured. And also, by using the profilometer, the behaviors of cutting edges on the grinding surface for various grinding conditions are in detail investigated in the grinding process, and from those results the probability of the fracture and the dig-out of cutting edges on the grinding surface have been examined. The main conclusions obtained are as follows:
(1) The specific grinding wheel wear, the grinding force, the surface roughness and the electric power consumption increase in company with the increase of the theoretical stock removal rate Zth, and the rates of those increases are possible to classify three stages in accordance with the degree of Zth.
(2) As the value of Zth increases, the distribution of cutting edges in radial direction of grinding wheel varies largely in grinding process.
(3) The probability which the fracture and the dig-out of cutting edges occur in grinding, increases nearly in proportion to the cube of Zth.
