Abrasive tool making process – material – or composition – Impregnating or coating an abrasive tool
Patent
1984-05-07
1985-09-03
Lieberman, Paul
Abrasive tool making process, material, or composition
Impregnating or coating an abrasive tool
51309, B24B 100
Patent
active
045390185
ABSTRACT:
A method is shown for fabricating cutter elements for a drill bit, each of the cutter elements being mounted on the drill bit by a mounting stud. A plurality of composite compacts are provided, each of the compacts having an exposed abrasive diamond surface bonded to a carbide substrate portion. The exposed diamond surface is coated with a thin, metal layer, which is relatively easier to grind away in subsequent steps than the diamond surface itself. The coated surface of the compact is then ground to a depth slightly less than the depth of the diamond surface to thereby form a smoothly ground surface for the compact. The smoothly ground surface of the compact is then contacted with a heat sink while the composite compact is brazed to the mounting stud. Each mounting stud so prepared is then affixed to a suitable receiving area provided on the drill bit.
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Staudenmayer Ralph
Whanger James R.
Felsman Robert A.
Gunter Jr. Charles D.
Hughes Tool Company--USA
Lieberman Paul
Thompson Willie
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