Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1988-11-07
1991-06-18
Dixon, Jr., William R.
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51293, 51298, 51309, B24B 100
Patent
active
050246801
ABSTRACT:
Multiple metal coated diamond grit for improved retention in a tool matrix comprises a first layer coating of a metal carbide of a strong carbide former, preferably chromium, titanium or zirconium, chemically bonded to the diamond and a second metal coating of an oxidation resistant carbide former, preferably tungsten or tantalum, chemically bonded to the first metal layer. A third metal layer coating of an alloying metal, preferably nickel, can also be added. In accordance with the method of the present invention, the first layer metal can be applied by metal vapor deposition. The second layer metal can be applied by chemical vapor deposition. The third layer of an alloying metal can be applied by electroless or electrolytic plating.
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Chen Sy-Hwa
Sung Chien-Min
Dixon Jr. William R.
Norton Company
Thompson Willie J.
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