| 摘要 |
PROBLEM TO BE SOLVED: To improve wear resistance of a base plate, reduce a coefficient of friction and improve the cutting accuracy of a super abrasive grain cutting wheel manufactured by fixing the super abrasive grain to an outer periphery of a disc-shaped base plate made of molybdenum by a binder, by partially or totally coating an exposed surface of the base plate with a hard film. SOLUTION: This super abrasive grain cutting wheel used in the precise cutting.grooving work of the optical glass, a semiconductor material and the like, is manufactured by forming a super abrasive grain layer 2 by fixing the super abrasive grain to an outer periphery of a disc-shaped base plate 1 made of molybdenum, by a binder. On this occasion, an exposed surface of the base plate 1 is totally or partially coated with a hard film 4. As the hard film, a chrome plating of a thickness of 1-100μm, a TiN coating of a thickness of 1-50μm, a DLC(diamond-like carbon thin film) coating of a thickness of 1-10μm, and a CrN(chromium nitride) coating of a thickness of 1-50μm can be preferably used. As the binder, the resin bond, a metal bond and the like can be used.
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