Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1996-04-03
1998-06-09
Jones, Deborah
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51309, B24D 1100
Patent
active
057626600
ABSTRACT:
A reusable grinding tool consisting of a replaceable single layer of abrasive particles intimately bonded to a precisely configured tool substrate, and a process for manufacturing the grinding tool. The tool substrate may be ceramic or metal and the abrasive particles are preferably diamond, but may be cubic boron nitride. The manufacturing process involves: coating a configured tool substrate with layers of metals, such as titanium, copper and titanium, by physical vapor deposition (PVD); applying the abrasive particles to the coated surface by a slurry technique; and brazing the abrasive particles to the tool substrate by alloying the metal layers. The precision control of the composition and thickness of the metal layers enables the bonding of a single layer or several layers of micron size abrasive particles to the tool surface. By the incorporation of an easily dissolved metal layer in the composition such allows the removal and replacement of the abrasive particles, thereby providing a process for replenishing a precisely machined grinding tool with fine abrasive particles, thus greatly reducing costs as compared to replacing expensive grinding tools.
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patent: 5129918 (1992-07-01), Chattopadhay
patent: 5181938 (1993-01-01), Krismer et al.
patent: 5271547 (1993-12-01), Carlson
patent: 5385591 (1995-01-01), Ramanath et al.
patent: 5389118 (1995-02-01), Hinterman et al.
Blaedel Kenneth L.
Colella Nicholas J.
Davis Pete J.
Juntz Robert S.
Kerns John A.
Carnahan L. E.
Jones Deborah
Regents of the University of California
Sartorio Henry P.
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