Abrasive tool making process – material – or composition – With inorganic material – Metal or metal oxide
Patent
1986-04-25
1987-03-24
Lieberman, Paul
Abrasive tool making process, material, or composition
With inorganic material
Metal or metal oxide
51293, B24D 322
Patent
active
046522778
ABSTRACT:
In accordance with the present invention, a composition of matter is provided for forming a vitrified abrasive wheel having an inner core and outer rim of differing compositions wherein said outer rim contains cubic boron nitride. The composition for the preferred rim material is a mixture comprising between about 10 to 70% by weight cubic boron nitride, between about 5 to 60% alumina, and about 15 to 35% bonding medium; and the preferred core composition comprises between about 10 to 65% silicon carbide, 10 to 60% alumina, and 5 to 30% bonding medium. In another aspect, a bonding medium is provided which is compatible with cubic boron nitride and in one embodiment has an oxide composition comprising about 71% silicon dioxide, 14% by weight boron oxide, about 5% by weight aluminum oxide, and about 10% by weight sodium oxide.
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Makhlouf Makhlouf M.
Schuster Thomas R.
Dresser Industries Inc.
Lieberman Paul
Thompson Willie J.
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