Abstract
A coolant supply system from the inside of a superabrasive grain electrodeposition grinding wheel was developed. The system can supply coolant to the grinding point efficiently by utilizing the many thin slits on the electrodeposition wheel as coolant flow channels. With S45C steel as the test material, the specific grinding force and grinding temperature using a electrodeposited CBN wheel were lower than those using a vitrified bonded WA wheel. The system can yield good dimension accuracy because the core of the wheel is cooled and expansion is reduced.