METHOD OF MANUFACTURING REVOLVING WHETSTONE AND REVOLVING WHETSTONE MANUFACTURED BY THE SAME

摘要

PURPOSE: A manufacturing method of a rotating grindstone and the rotating grindstone which is manufactured using the same method are provided to prevent grindstone waste by reducing the amount of the discarded grindstone. CONSTITUTION: A rotating grindstone comprises a disc-shaped grindstone body. The disc-shaped grindstone body comprises a center part(12a) and an effective grindstone circular part(12b). The central part has a burr center hole(13). The shaft for rotating the grindstone of a grinder(32) is inserted in the burr center hole. The valid burr circular part is formed in the circumference outside of the central part. The wall of the central part is thinner than the wall of the valid burr circular part. The wall of the valid burr circular part is thicker than the wall of the central part.