Grindstone and method of manufacturing the same

摘要

A sheet-shaped grindstone (E) for grinding a workpiece includes a plurality of segments (6e) arranged in an appropriate pattern with sufficient spaces therebetween such that the grindstone becomes flexible. The segments (6e) are formed in a manner in which metal powder (9) including diamond grinding grains (8) is sintered to form granular chips (10), the chips (10) are disposed in a die (12a) in such a density that the chips (10) come into mutual contact, and gaps around the granular chips (10) are filled with a resin (11) through application of pressure. The grindstone (E) is more flexible at contact points with a workpiece than are conventional vitrified grinding tools. The grindstone (E) can evade collision of the segments (6e) with the workpiece and can grind a curved surface of the workpiece through smooth contact therewith. <IMAGE>