Patent ID: 6074282
Filing Date: 2000-06-13
Classification: B24B

Abstract:
An apparatus for use in honing the external cylindrical surface of a workpiece, said apparatus comprising an elongated annular metal member having opposed end portions, an outer surface adapted to be held by support means for holding the annular member in a position for honing, and an inner surface defining a passageway extending therethrough from end-to-end adapted for receiving the workpiece, the inner surface of said annular metal member including particles of an abrasive material extending substantially the full length thereof, the metal of the annular metal member being formed around the particles of said abrasive material binding the particles to the inner surface and extending continuously from the inner surface to the outer surface around the annular metal member, the inner surface of said annular metal member having a first abrasive portion of a substantially frusto-conical shape extending from adjacent one end of said annular metal member along a portion of the length thereof to an intermediate location therealong and a second abrasive portion which extends from the opposite end of said first abrasive portion towards the opposite end of said annular metal member, said first abrasive portion being adapted for removing material from the external cylindrical surface of the workpiece at a first rate during a honing operation, said second abrasive portion being adapted for removing material from the external cylindrical surface of the workpiece at a lesser rate than said first abrasive portion, said second abrasive portion being adapted for establishing the final diameter of the external cylindrical surface of the workpiece, and a slot formed through one side portion of said annular metal member extending the full length thereof to facilitate expansion and contraction thereof to radially adjust the diameter of the inner surface of said annular metal member.