Research on the Cutting Performance of Fine-Grain Abrasive Stone

Abstract

For the purpose of improving cutting performance of fine-grain abrasive stones, the authors investigated about numerous fine-grain abrasive stones of various bond hardness, bond combining ratio, porosity and grain combining ratio, using a special testing apparatus with which stone wear, stock removal and cutting resistance could be measured, and obtained the following results. The results of the model performance test obtained with the testing apparatus designed by the authors coincide well with the results of practical superfinishing. The porosity is the most decisive factor on cutting performance among the constitutional factors of a fine-grain abrasive stone. In order to get a good cutting performance, it is necessary to use stones which maintain higher bond hardness with smaller quantity of bond and have larger porosity.