Abstract: The grinding experiment of soda-lime glass was carried out to study the effects of grinding parameters on the surface roughness and morphology of the glass. The surface morphology was compared after grinded by different coated micro-grinding tools and surface roughness under different cooling conditions were also analyzed. The results show that when the grinding speed increases and the grinding depth and feed rate decrease， the surface roughness decreases and the surface morphology becomes smoother and better. Under different cooling conditions， the level of surface roughness after wet grinding is lower and the surface quality is better. In comparison with the CBN-coated micro-grinding with the same granularity， the diamond-coated micro-grinding can perform a better surface quality and more suitable for hard and brittle materials， such as glass.

Key words: coated micro-grinding tools; grinding performance; surface morphology; surface roughness; surface quality