US 6,358,133 B1 · Grinding wheel

Abstract

A cylindrical, abrasive grinding wheel having a cylindrical abrasive region with an abrasive surface at an outer circular band thereof. The abrasive region includes layers of abrasive particles. The layers of abrasive particles can be tilted with respect to an axis of rotation of the grinding wheel or they can such that grooving in the grinding wheel and a workpiece ground by the grinding wheel can be reduced. Alternatively, the abrasive region can be formed from a plurality of abrasive segments each having layers of abrasive particles. The layers of abrasive particles can be staggered in the direction of the axis of rotation from one segment to another. This can also reduce grooving in the grinding wheel and workpieces.

Claims36

Dependent claims

An abrasive grinding wheel that can be rotated about an axis of rotation, the abrasive grinding wheel comprising:

a means for defining an axis of rotation of the abrasive grinding wheel;
a substantially cylindrical region of abrasive material having a circumferentially extending abrasive surface at a peripheral band thereof and formed from a plurality of layers of abrasive particles, each layer of abrasive particles separated from an adjacent layer of abrasive particles by a layer of bond material, and each layer of abrasive particles extending along at least a portion of the circumference of the abrasive surface and in a radial direction of the substantially cylindrical region of abrasive material from the abrasive surface toward the axis of rotation;
and
wherein any circular path defined by an intersection of a plane perpendicular to the axis of rotation of the abrasive grinding wheel and a complete circumference of the abrasive surface will intersect at least one of the plurality of layers of abrasive particles.

1 more element

An abrasive grinding wheel that can be rotated about an axis of rotation, comprising:

a means for defining an axis of rotation of said abrasive grinding wheel;
a first support plate;
a second support plate;
and
a substantially cylindrical region of abrasive material sandwiched between the upper support plate and the lower support plate and formed from a plurality of discrete abrasive segments, each of the plurality of abrasive segments having a plurality of layers of abrasive particles separated from an adjacent layer of abrasive particles by a layer of bond material, and each layer of abrasive particles extending along at least a portion of the circumference of an abrasive surface;
wherein at least one of the plurality of layers of abrasive particles in at least one of the plurality of abrasive segments are offset in a direction of the axis of rotation from at least one of the plurality of layers of abrasive particles in at least one other of the plurality of abrasive segments.

3 more elements

Dependencies are inferred from the claim text.

Grinding wheel

Life of this patent

Grinding wheel

Life of this patent

Abstract

Claims36