Abrasive tool making process – material – or composition – With inorganic material
Patent
1988-09-09
1990-07-31
Rose, Robert
Abrasive tool making process, material, or composition
With inorganic material
51309, 51295, 51298, B24D 304
Patent
active
049447734
ABSTRACT:
Bonded abrasive grinding tools with more cost effective grinding performance than those known in the prior art for grinding certain types of hard metals may be made by combining in the tool both grits of conventional superabrasives and grits of aluminous abrasive characterized by a microstructure that predominantly comprises tightly packed, very fine crystals of alpha alumina or of an aluminum spinel such as magnesium aluminate. The predominant crystallites in the best type of aluminous abrasive have maximum dimensions of no more than about 0.3 micron and generally show little or no regular faceting at about 5,000 magnification and are approximately equiaxed, with no higher aspect ratio than 2, usually less than 1.5.
REFERENCES:
patent: 2979414 (1961-04-01), Ryshkewitch et al.
patent: 3437468 (1969-04-01), Seufert
patent: 3940276 (1976-02-01), Wilson
patent: 3944398 (1976-03-01), Bell
patent: 4314827 (1982-02-01), Leitheiser et al.
patent: 4543107 (1985-09-01), Rue
patent: 4623364 (1986-11-01), Cottringer et al.
patent: 4741743 (1988-05-01), Narayanan et al.
Pukaite Leonard G.
Rue Charles V.
Subramanian Krishnamoorthy
Bennett David
Norton Company
Rose Robert
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