RESIN-BONDED ABRASIVE TOOLS WITH METAL FILLERS
First Claim
2. An abrasive tool as in claim 1 in which the metal filler is present in an amount of from 30 to 50 percent, by volume, and the dry film lubricant filler is present in an amount of from 10 to 20 percent, by volume.
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Accused Products
Abstract
High ratios of metal removed to abrasive tool wear are achieved when resin-bonded diamond or cubic boron nitride abrasive tools include in the bond from 10 to 60 percent by volume of silver, silver coated copper, or copper powder in the presence of from 5 to 30 percent by volume of a solid lubricant. Other fillers such as finely divided metal oxides or carbide such as silicon carbide may be present in an amount of from 0 to 40 percent by volume, depending upon the total content of metal and lubricant. The diamond wheels or tools of this invention are particularly suitable for the dry grinding of carbide tools. The cubic boron nitride wheels employ metal clad boron nitride abrasive particles and are particularly suitable for the dry grinding of hard steel tools, that is, high speed steels such as T15, M2, M3, and M4. Solid lubricants useful in this invention include organic polymers such as polytetrafluoroethylene, fluorinated ethylene polymers, chlorinated hydrocarbon, fluorinated ethylene propylene polyethylene styrene-butadiene, acrylonitrile-butadiene-styrene, polyurethane, polyforaldehyde, polycarbonate, and nylon and inorganic crystalline solids such as boron nitride, tungsten disulfide, graphite, metal coated graphite, molybdenum disulfide, niobium diselenide tungsten diselenide, and fluorinated graphite.
21 Citations
5 Claims
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2. An abrasive tool as in claim 1 in which the metal filler is present in an amount of from 30 to 50 percent, by volume, and the dry film lubricant filler is present in an amount of from 10 to 20 percent, by volume.
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3. An abrasive tool as in claim 1 in the form of a bonded abrasive annulus.
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4. An abrasive tool as in claim 1 in the form of a coated abrasive belt.
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5. A tool as in claim 1 in the form of an abrasive disc.
Specification
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- Resources
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Current AssigneeHarvey M. Cohen, Richard H. Siqui
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Original AssigneeHarvey M. Cohen, Richard H. Siqui
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InventorsSiqui, Richard H., Cohen, Harvey M.
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Primary Examiner(s)Arnold, Donald J.
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Application NumberUS05/163,976Time in Patent Office883 DaysField of Search51/295,298,297US Class Current51/298CPC Class CodesB24D 3/004 with special coatingsC08K 3/013 Fillers, pigments or reinfo...
