Synergistic improvement of grinding fluid utilization and workpiece surface quality using combinatorial bionic structured grinding wheels

Abstract

The adverse effect on ground surface of workpiece during the grinding process is caused by poor lubrication. Improving the utilization rate of the grinding fluid has become an urgent problem. To prevent airflow disturbance from obstructing the grinding fluid flow, this paper proposes a combinatorial bionic structure grinding wheel that incorporates fish-scale shape and phyllotaxis-arrangement. This study analyses and compares the surface structure of different grinding wheels based on the surface quality of the workpiece, the grinding fluid utilization rate and the surface condition of the grinding wheel. We propose a ground surface model for workpieces based on structural grinding wheels. By combining the model calculations with the results of the grinding experiments, the combinatorial bionic structure grinding wheel was found to produce the smallest surface roughness on the workpiece, with a maximum reduction rate of 34.2 %. Then, the anti-disturbance performance of the combinatorial bionic structured grinding wheel is analyzed by studying the hydrodynamic properties of the grinding fluid during the grinding process. The utilization of the combinatorial bionic structured grinding wheel resulted in a grinding fluid utilization of 146.7 % compared to the other structured grinding wheels. The combinatorial bionic structure grinding wheel effectively guides the flow of grinding fluid on the basis of ensuring the surface quality of the workpiece. This reduces the waste of grinding fluid and achieves effective cleaning of the grinding zone, contributing to green manufacturing.