FIELD: manufacturing of multi-layer grinding wheels.
SUBSTANCE: group of inventions can be used in manufacturing of three-layer disc-shaped grinding wheels intended for grinding ceramic balls. The grinding wheel contains at least three flat layers (2, 3, 4), including an inner layer (2) and two outer layers (3, 4) adjacent directly to the inner layer (2), of which at least the inner layer has a share diamond abrasive grain. The ratio of diamond in the abrasive grain in the inner layer is greater than in the outer layers. The outer layers (3, 4) respectively have a diamond content in the abrasive grain of less than 90% by weight.
EFFECT: efficient processing of ceramic balls is ensured.
11 cl, 3 dwg
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