Patent ID: 8182318

Claim:
An obliquely grooved grinding wheel in which a plurality of wheel chips each composed of an abrasive grain layer containing superabrasive grains and a foundation layer are adhered to a core attached to a wheel spindle carried by a wheel head of a grinding machine to be drivingly rotatable about a rotational axis and in which a grinding surface formed on the abrasive grain layers grinds a workpiece, drivingly rotatably supported by a workpiece support device of the grinding machine, in contact at a grinding point, wherein: the wheel chip has both ends in a wheel circumferential direction inclined relative to the wheel circumferential direction; the foundation layer has a protruding portion formed to protrude from the abrasive grain layer in the wheel circumferential direction; and the plurality of wheel chips are adhered to the core so that the protruding portion contacts the foundation layer of an adjoining wheel chip to form an oblique groove between adjoining abrasive grain layers.