Abstract
In the previous research, the ultra–smoothness grinding method in which the surface roughness is near the ultra–smoothness surface formed by polishing, is developed and ascertained useful by applying to the horizontal grinding method. Then to improve the removal rate, the ultra–smoothness vertical grinder is developed. Using the vertical machine, in the research, the influence of the dilution of grinding fluid on the ultra–smoothness grinding of cemented carbide is examined. The surface roughness becomes better as the degree of dilution increases.