Carbon bonded abrasive tools and method for producing
AssigneeMaterials Specialties Scandinavia, Inc.
InventorsSemen S. Semenov, Andrey A. Shkola, John L. White
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Abstract
A method of producing a carbon bonded abrasive tool by chemical vapor deposition of carbon, such as pyrolytic carbon, diamond, or a polymorphous form of diamond through a preshaped tool, the preshaped tool containing a mixture of abrasive particles, and also the carbon bonded abrasive tool produced by the method. The mixture of abrasive particles may include a mixture of a superabrasive powder and an abrasive powder filler. All or a portion of the filler has been impact processing by subjecting the filler to an uniform super-pressure exceeding one gigapascal to break up the filler into random size particles, some at the original mesh size interspersed with a continuum of smaller particles.
Claims23
A method of producing a carbon bonded abrasive tool, comprising:
- (a) selecting a mixture comprising abrasive particles;
- (b) shaping the abrasive mixture to form a tool;
- and
- (c) saturating the shaped tool with carbon source gas to provide a thin carbon deposit on the individual abrasive particles, thus bonding the abrasive particles together.
A method of producing a carbon bonded abrasive tool comprising:
- (a) selecting a mixture of abrasive particles and mixed size abrasive filler particles said filler particles being the same size or smaller than the size of the abrasive particles;
- (b) adding a plasticizer to the abrasive mixture to form a plasticizer mixture;
- (c) forming the plasticizer mixture to a shaped plasticized green form;
- (d) carbonizing the plasticizer to produce a porous shaped tool;
- and
- (e) saturating the shaped tool with carbon source gas to provide a thin carbon deposit on the individual abrasive particles, thus bonding the abrasive particles together.
Dependencies are inferred from the claim text.