MANUFACTURE OF THIN EDGE ROTATING GRINDSTONE FOR CUTTING

PURPOSE:To maintain a good cutting function over a long period by removing one part of the precipitated metal with the execution of execution of etching on the face having been brought into contact with the substrate of the layer consisting of peeled off super abrasive grain and precipitated metal and exposing the super abrasive grain. CONSTITUTION:A super abrasive grain 3 is fixed on a substrate 1 by precipitating a metal 4 on the conductive plane substrate 1 where the super abrasive grain 3 is deposited in a plating liquid. A layer consisting of the super abrasive grain 3 and precipitated metal 4 is peeled off from the substrate 1, etching is executed on the face which was brought into contact with the substrate 1 of this peeled off layer, the precipitated metal 4 is removed until the super abrasive grain 3 is exposed and a desired thin edge rotating grindstone for cutting is obtained. The rotating grindstone thus obtained is formed by the precipitated metal 4 containing the super abrasive grain 3 up to the vicinity of the rotation center part and so the cutting function is continued to be maintained even in case of the diameter becoming remarkably smaller by the consumption accompanied by the use.