Abstract: Single grain abrasive wear model is established for the micro grinding process. The abrasive wear at different stages in micro-grinding process is analyzed by the observation toward the diameter variation and the surface appearance of the micro-grinding tools as well as the surface quality variation of the workpieces. Tool wearing influence rules caused by various grinding influence factors are also studied through single-factor experiments on soda-lime glass， with ^#500 particle size micro-grinding tools adopted. The experiment results indicate that the wear and breakage of abrasive grains are increased as long as the feed speed and feed rate increase during the micro grinding process. In addition， as the material removal volume increases， the diameter of the micro grinding tool decreases sharply at first， and then decreases linearly. Generally， a decrease trend of the roughness value is observed form the machine surface. The achievements of this paper provides theoretical and experimental basis for increasing working life and improving processing performance of micro-grinding tool.

Key words: micro-grinding tool, soda-lime glass, abrasive wear, wear mechanism, roughness