Abstract
High smoothness grinding of carbon steel has been increasingly becoming important. Finished carbon steel surface are created using cubic boron nitride tool. We used the resinoid bonded wheel and examined the effect of the grinding fluid on the grinding wheel face and the finished surface. Two type of grinding fluids were examined : the semi-emulsion type including the extreme pressure additives and the synthetic emulsion type that has conventionally been supplied for smoothness grinding finishing. From the results it is found that the surface roughness of carbon steel becomes 0.5 μm(Rz) by using the semi-emulsion type including the extreme pressure additives. The critical total wheel-workpiece contact number using the synthetic emulsion type becomes more than using the semi-emulsion type including the extreme pressure additives.
