Precision abrasive finishing apparatus

a technology of abrasive finishing and precision, which is applied in the direction of gear teeth, gear teeth, gear machine, etc., can solve the problems of abrasive slurries that require periodic replacement, flat base surface as well as work pieces, and need periodic re-truing of the base, so as to achieve a lower cost and work
US20050255803A1Inactive Publication Date: 2005-11-17POWELL DAVID G
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
POWELL DAVID G
Publication Date
2005-11-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

A precision abrasive finishing apparatus comprising a base, preferably of granite and being ground to true flat; an abrasive lap capable of being vacuum-clamped against said base and having an abrasive material disposed on it upper, lapping surface; and vacuum clamping means. The abrasive material may be any conventional abrasive grit, such as aluminum oxide, silicon carbide, cubic boron nitride, or other material of suitable hardness, sharpness, friability, durability, inertness, and cost, but preferably is diamond.
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Description

FIELD OF THE INVENTION

[0001] The present invention relates to a precision abrasive finishing apparatus, specifically, to a lap surface capable of being retrofitted to a conventional lapping table or to a curved mold. BACKGROUND OF THE INVENTION

[0002] Lapping is a time-honored way of refining the geometry and finish of work pieces. Typically, the work piece is rubbed over a flat abrasive base surface that is larger than the work piece. The flat base surface may be made of an abrasive material that is either quarried or man-made, or the flat base may not itself be abrasive, but rather be coated with an abrasive material. Randomized motion is provided either by hand over a stationary abrasive base or by machine movement of either or both of work piece and base. The base should be flat-surfaced and a base having any deviation from true flat will degrade the resulting flatness and finish of the work piece.

[0003] The abrasive material may be grain-locked in a rigid three-dimensional ma...

Claims

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