This study focused on the abrasive grain locus of the dresser during dressing and investigated the changes in the stone working area ratio and superfinishing performance. The results indicated that when the interference angle of the dresser’s locus to the stone’s outer diameter is low, the amount of wear during dressing is small and the working area ratio increases. A mechanochemical superabrasive stone with higher working area ratio produces better surface roughness. However, the results also indicated that the working area ratio decreases gradually when the same dressing conditions are repeated, and the finished surface deteriorates.

In general, current fixed-abrasive tools are subjected to intermittent dressing when loading occurs, which continues until they lose their grinding and polishing capabilities. The dressing process has adverse effects, such as reduced operating efficiency and tool lifetime and increased cost and environmental burden. The authors propose a fixed-abrasive tool with a spiral groove on the tool surface to eliminate or decrease swarf loading. The spiral groove, which is produced by a spiral wire wound around the tool, allows continuous evacuation of swarf and prolongs tool life. Grinding experiments confirmed that this spiral groove tool has almost no swarf loading while conventional fixed-abrasive tool are subject to loading. It was also shown that a mirror surface can be achieved with the spiral tool.