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5015266 |
Abrasive sheet and method for manufacturing the abrasive sheet
An abrasive sheet is formed by uniformly painting slurry made of mixture of abrasive particles and adhesives on a surface of a base sheet with a pattern of irregularities by embossing. The slurry...
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5015265 |
Process for making cubic boron nitride from coated hexagonal boron nitride, and abrasive particles and articles made therefrom
Abrasive particles and articles made from cubic boron nitride derived from coated hexagonal boron nitride which is substantially free of oxides and volatile contaminants. Polycrystalline CBN is...
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5014468 |
Patterned coated abrasive for fine surface finishing
Coated abrasive material for fine finishing applications including second fining ophthalmic application, having patterned surface coating of abrasive grains dispersed in radiation-cured adhesive...
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5011511 |
Grinding tool
A material removing tool wherein a wheel-shaped, rod-like, tubular or otherwise configurated carrier supports pulverulent and/or granular particles of abrasive material which are joined to each...
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5011509 |
Composite compact with a more thermally stable cutting edge and method of manufacturing the same
A compact blank for use in operations that require very high abrasion resistance and a thermally stable cutting edge is disclosed. The compact comprises a substrate formed of tungsten carbide or...
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5011513 |
Single step, radiation curable ophthalmic fining pad
A single step fining pad for use in a ophthalmic applications having radiation cured maker and size coats of different hardnesses.
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5011512 |
Coated abrasive products employing nonabrasive diluent grains
A coated abrasive article comprised of a blend of premium abrasive grains and nonabrasive diluent grains adhered to a backing material by a resinous binder. The article has an unexpected abrading...
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5011510 |
Composite abrasive-articles and manufacturing method therefor
A composite abrasive-articles according to the present invention is obtained by: mixing diamond pieces of abrasive articles or cubic boron nitride pieces of abrasive articles and metal powder,...
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5009673 |
Method for making polycrystalline sandwich compacts
Disclosed is a method for manufacturing a polycrystalline sandwich compact comprising a polycrystalline diamond or CBN core interposed between outer support layers. The method comprises providing...
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5009675 |
Coated silicon carbide abrasive grain
An abrasive grain on the basis of silicon carbide with a binder-free coating of highly dispersed silicon, aluminum or titanium oxide for preferred use in resin-bonded or ceramic-bonded abrasive...
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5002828 |
Composite diamond abrasive, process for preparation, and drilling or machining which are equipped with it
An abrasive is provided having an active phase comprising a sintered product comprising diamond grains, each grain being linked directly to its neighbors by bridging to exhibit a polycrystalline...
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5000761 |
Gel producing pad and improved method for surfacing and polishing lenses
A surfacing pad is produced by dispersing abrasive particles in a flexible, water absorbent matrix that is secured on a flexible, fabric substrate, which functions as a reservoir for a liquid. By...
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5000760 |
CBN abrasive-grains, method for producing the same, and grinding wheel
CBN abrasive grains contain 0.01% by weight or more of Si and, the majority of the surfaces of its grains consist of {111} planes. In the method for producing CBN abrasive grains, a C source, an Si...
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4997461 |
Nitrified bonded sol gel sintered aluminous abrasive bodies
Vitrified bonded abrasive bodies prepared from sol gel sintered aluminous grit particles and a vitreous (glass) bond exhibit improved abrasive performance by treating the surfaces of the grit...
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4991359 |
Method of abrading a hardened resin
A method of treating a metal-plated board for the removal of a hardened, alkali-soluble resin layer therefrom, comprising the steps of: (a) contacting a surface of the resin layer with an...
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4988369 |
Agglomerated abrasive material, compositions comprising same, and processes for its manufacture
Agglomerated abrasive material suitable for use in liquid abrasive cleaning compositions comprises inorganic filler and a polymeric binding agent selected from polyalkylenes, copolymers of...
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4987800 |
Cutter elements for rotary drill bits
A preform cutting element, for a rotary drill bit, includes a layer of polycrystalline diamond material having a front cutting face, a rear face and a peripheral surface, a cutting edge being...
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4985050 |
Supported thermally stable cubic boron nitride tool blanks and method for making the same
A method for making supported, thermally stable cubic boron nitride (CBN) or wurtzitic boron nitride (WBN) compacts or wire dies comprising providing a mass of sinterable CBN and WBN particles...
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4974373 |
Abrasive tools
An abrasive tool comprises a base and an abrasive powder bonded to the base in the form of a single-layer structure in which the particles do not substantially overlap or rest one upon another. For...
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4971602 |
Method for grinding gear teeth
A method for form grinding gears is disclosed using diamond or cubic boron nitride as the abrasive including form grinding a female wheel with a master gear form grinding wheel to produce a desired...
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4968326 |
Method of brazing of diamond to substrate
A method of making a diamond cutting and abrading tool. The method includes the following steps: (A) Mixing molybdenum with a braze which alloys with the carbide forming substance and a...
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4966609 |
Conformable abrasive article
A flexible abrasive article for cleaning, polishing or smoothing objects which is resistant to absorption of liquid and capable of conforming to the shape of the object. The article comprises a...
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4964209 |
Method for producing a wire incrusted with abrasive grain
A wire incrusted with abrasive grains characterized in that it is produced by preparing a cylindrical metallic body having a metallic rod inserted into the central part of a metallic part with a...
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4964883 |
Ceramic alumina abrasive grains seeded with iron oxide
A process of producing alpha alumina ceramic abrasive grain by sintering alpha alumina monohydrate is improved by seeding with a crystalline oxide of iron having a particle size of less than 150 nm.
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4964884 |
Flexible grinding tool and process for producing it
The interspace-filling finish (10, 15) of the textile backing of a flexible grinding tool has a foam structure, thereby achieving better filling properties, while at the same time ensuring good...
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4960441 |
Sintered alumina-zirconia ceramic bodies
Useful ceramic bodies can be made by mixing zirconia powder with seeded alumina gel, drying, and firing at a high enough temperature to convert the alumina in the gel to microcrystalline alpha...
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4959929 |
Tool insert
A tool insert comprising a composite diamond abrasive compact and a method of its production are provided. The composite abrasive compact is characterized by an intermediate layer between the...
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4956238 |
Manufacture of cutting structures for rotary drill bits
A cutting structure, for a rotary drill bit, is of the kind comprising a preform cutting element having a front cutting face formed of superhard material, such as polycrystalline diamond, and a...
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4954139 |
Method for producing polycrystalline compact tool blanks with flat carbide support/diamond or CBN interfaces
The present invention relates to a method for making a supported PCD or CBN compact comprising placing in an enclosure a cup assembly having a mass of diamond or CBN particles having a surface and...
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4954138 |
Stone to finish stone washed jeans
A product and method for conditioning fabrics, especially denim, is disclosed. The product is an artificial stone made up of an inorganic filler, inorganic abrasive particles and an inorganic bond...
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4954140 |
Abrasives, abrasive tools, and grinding method
A composite spherical-particle abrasive comprises spherical particles and abrasive particles, each spherical particle being coated with a plurality of abrasive particles. The composite abrasive...
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4954142 |
Method of chemical-mechanical polishing an electronic component substrate and polishing slurry therefor
Disclosed is a method of chem-mech polishing an electronic component substrate. The method includes the following steps; obtaining a substrate having at least two features thereon or therein...
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4950557 |
Composite tool and a process for the production of the same
A composite tool with a higher bonding strength and higher heat resistance is provided comprising an insert of a hard material such as composite diamond or BN compacts and a support of a hard metal...
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4944772 |
Fabrication of supported polycrystalline abrasive compacts
Disclosed is a process for fabricating a supported polycrystalline diamond or CBN bi-layer compact which comprises forming a sintered polycrystalline or CBN compact which preferably is a...
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4938784 |
Foamed abrasive element and method of producing the same
A foamed abrasive element comprises a bond of a crosslinked and hardened unsaturated polyester resin and abrasive grains dispersed in the bond and having a porosity of 10 to 80% and a compressive...
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4936875 |
Rare earth boride abrasive/polishing agents
Particulates, e.g., powders, of the rare earth borides are well suited for the effective abrasion/polishing of a variety of characteristically hard substrate face surfaces, e.g., hard ceramic...
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4935039 |
Abrasive composition and process for polishing plastic article
An effective abrasive composition is provided for polishing a plastic article, particularly a plastic lens, to give a mirror surface thereto. This abrasive composition comprises water, an aluminous...
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4932166 |
Inert autogenous attrition grinding
A method for grinding an oxygen sensitive ceramic material to a powder which comprises grinding an oxygen sensitive ceramic feed material having an average particle size of between 1 and 200...
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4930266 |
Abrasive sheeting having individually positioned abrasive granules
Abrasive sheeting can produce fine finishes at surprisingly high cutting rates when its abrasive granules are individually positioned in a predetermined pattern, with an uncoated portion of...
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4931068 |
Method for fabricating fracture-resistant diamond and diamond composite articles
A method for consolidating finely divided diamond particles to produce a substantially fully dense article having improved resistance to wear and cracking. Diamond particles are heated to an...
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4931069 |
Abrasive tool with improved swarf clearance and method of making
An abrasive tool utilizes a bed of discrete elements secured to a tool substrate. The bed of discrete elements provides intersticial spaces between the elements for mounting receipt, for example by...
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4929257 |
Abrasive composition and process for polishing
An abrasive composition comprising: an aluminous abrasive, preferably having an average particle size of 0.5-10 μm and a concentration of 1 to 25% by weight; nickel sulfamate and/or sulfate,...
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4918874 |
Method of preparing abrasive articles
A method of preparing abrasive articles exhibiting improved homogeneity and breakdown properties is disclosed. The method comprises admixing abrasive grits and a bond phase comprising silica...
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4919974 |
Making diamond composite coated cutting tools
Method of making a composite coated article by the steps of: (a) initiating chemical vapor deposition of separated diamond or diamond-like particles onto a nondiamond or nondiamond-like substrate...
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4913708 |
Grinding wheel
The grinding performance of organic bonded abrasive bodies whose abrasive portion is wholly or partially composed of aluminous abrasive grits is significantly improved by providing a magnesium...
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4907665 |
Cast steel rock bit cutter cones having metallurgically bonded cutter inserts
Tools, and particularly rock bit cutter cones, having "hard" cermet cutter inserts enveloped in an intermediate layer or coating of a suitable high melting metal, and embedded in a cast steel...
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4902305 |
Semi-cylindrical metal polishing element
A metal polisher 1 is semi-cylindrical in shape to permit polishing a protruded or a recessed surface portion of a workpiece. A number of grooves 4 are formed circumferentially on a surface on...
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4881951 |
Abrasive grits formed of ceramic containing oxides of aluminum and rare earth metal, method of making and products made therewith
Ceramic abrasive grits comprising alpha alumina and at least about 0.5 percent by weight rare earth metal oxide are prepared by combining alumina hydrate and rare earth metal oxide or its...
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4877420 |
Halogen-containing fillers for abrasive bodies, in particular for grinding wheels or cutting wheels, to a process for the production of these fillers and to abrasive bodies containing them
Proposed is a halogen-containing filler for abrasive bodies on the basis of at least one metal halide or metal complex salt of the formula A x Me y II Me z III Hal E .nB f C g Hal e .mH 2 ...
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4875907 |
Thermally stable diamond abrasive compact body
A thermally stable diamond compact is bonded to a cemented carbide substrate through a nickel bonding layer. Bonding takes place under elevated conditions of temperature and pressure where the...
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