Grinding wheel

a technology of rotating wheels and workpieces, which is applied in the direction of gear teeth, grinding devices, gear teeth, etc., can solve the problems of edge re-profiles that may have to be worn down, and achieve the effects of reducing grooving on the surface of workpieces, reducing grooving on workpieces, and preferably eliminating grooving
US20020068518A1Inactive Publication Date: 2002-06-063M INNOVATIVE PROPERTIES CO
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
3M INNOVATIVE PROPERTIES CO
Publication Date
2002-06-06
Estimated Expiration
Not applicable · inactive patent

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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.
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Description

[0001] This application is a continuation-in-part of pending prior application Ser. No. 09 / 019,657, filed on Feb. 6, 1998.TECHNICAL FIELD

[0002] The present invention relates generally to abrasive or superabrasive tools. In particular, the present invention relates to a rotatable grinding wheel having an abrasive or superabrasive surface.BACKGROUND OF THE INVENTION

[0003] Certain types of workpieces (plastic and glass lenses, stone, concrete, and ceramic, for example) can be advantageously shaped using grinding tools, such as a wheel or disc, which have an abrasive work surface, particularly a superabrasive work surface, a superabrasive surface also being an abrasive surface but having a higher abrasivity. The work surface of the grinding tool can be made up of an abrasive band around the outer circumference of the wheel or disk. The work surface usually includes particles of super hard or abrasive material, such as diamond, cubic boron nitride, or boron suboxide surrounded by a bond ...

Claims

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