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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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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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5007207 |
Abrasive product
A tool insert comprising an abrasive compact bonded to a cemented carbide support. The cutting edge of the tool is provided by the periphery of the compact. A plurality of circular, concentric...
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5007943 |
Sol-gel process alumina abrasive grain blends in coated abrasive material
Coated abrasive material having blends of abrasive grains of sol gel process alumina and alumina-zirconia in a volume ratio of at least 15% sol gel abrasive grain provide improved performance in...
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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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4992082 |
Method of toughening diamond coated tools
Method of toughening the structure of a diamond or diamond-like coated tool, by the steps of: (a) depositing, by low pressure CVD, a plurality of layers of separated diamond or diamond-like...
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4988554 |
Abrasive article coated with a lithium salt of a fatty acid
A coated abrasive article comprising a backing bearing on one major surface thereof a layer of abrasive grains overcoated with a loading resistant coating and on the other major surface thereof a...
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4984940 |
Multilayer coated cemented carbide cutting insert
An indexable metalcutting insert is provided having a cobalt cemented tungsten carbide substrate wit a multilayer refractory coating thereon. The substrate has a cobalt content of 6.1 to 6.5 weight...
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4977710 |
Metal bonded diamond wheel
The metal bonded diamond wheel of the invention has a sintered body of a mixture of a diamond powder and a bonding metal powder. The particles of the bonding metal powder or, preferably, 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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4973338 |
Anti-static and loading abrasive coating
A coated abrasive is disclosed that has been oversized with an anti-loading amount of a quaternary ammonium anti-static compound, comprising from about 15 to about 35 carbon atoms and a molecular...
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4972637 |
Abrasive products
A tool insert comprising an abrasive compact bonded to a cemented carbide support. The cutting edge of the tool is provided by the periphery of the compact. A plurality of recesses, each filled...
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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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4966055 |
Chain saw sharpening device
A device for sharpening chain saw cutter teeth includes a rigid disc member which has an abrasive coating deposited on its outer circumferential edge. The abrasive coating has a circumferential...
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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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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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4960442 |
Flexible grinding tool
The back finish of a flexible grinding tool, especially a grinding belt, tains an ingredient which is composed predominantly of plate-like mineral particles, preferably micaceous iron ore. It gives...
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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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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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4949511 |
Super abrasive grinding tool element and grinding tool
This invention relates to a super abrasive grinding tool element and grinding tools having the element, the element being formed by bonding, with a resin system adhesive, super abrasive grains of...
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4950346 |
Method of forming an adaptor fitting around a workpiece
An apparatus and method are disclosed for holding a generally cylindrical workpiece for honing or otherwise machining an internal bore. The workpiece is held by a gripping surface over most of the...
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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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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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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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4931102 |
Metal cleaning process
Processes are provided for cleaning metal in preparation for painting, coating, welding or other subsequent process. The processes all include rinsing the metal with a solution of deionized water...
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4927431 |
Binder for coated abrasives
An abrasive product comprising abrasive grains bonded to at least one major surface of a backing sheet by a binder formed from a blend comprising radiation curable monomer and a thermally curable...
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4923490 |
Novel grinding wheels utilizing polycrystalline diamond or cubic boron nitride grit
The invention provides grinding tools comprising thermally stable polycrystalline diamond or cubic boron nitride abrasive particles and single crystal diamond or cubic boron nitride abrasive...
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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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4883500 |
Sawblade segments utilizing polycrystalline diamond grit
The present invention provides saw blade segments comprising polycrystalline diamond cutting elements and single crystal diamond cutting elements dispersed in a bonding matrix. In a preferred...
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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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4871377 |
Composite abrasive compact having high thermal stability and transverse rupture strength
A composite compact adapted for high-temperature uses, such as a cutter on a rotary drill bit, which includes a relatively thick table of diamond or boron nitride particles with a strong,...
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4866885 |
Abrasive product
A composite abrasive compact is produced by placing strips of suitable abrasive material on a cemented carbide substrate. The strips each comprise abrasive particles, optionally with a particulate...
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4861350 |
Tool component
A tool component is provided which comprises an abrasive compact bonded to a cemented carbide support body. The abrasive compact has two zones which are joined by an interlocking, common boundary....
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4850523 |
Bonding of thermally stable abrasive compacts to carbide supports
Disclosed is a method for bonding thermally-stable polycrystalline diamond or CBN compacts to carbide supports wherein the carbide support is placed in thermal contact with a heat sink and the...
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4848041 |
Abrasive grains in the shape of platelets
Abrasive grains having a shape such that the mean particle volume ratio thereof is less than about 0.8, and preferably ranges from about 0.3 to about 0.7. Typically, the grains have the shape of a...
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4842619 |
Glass polishing article
An abrasive article for polishing glass and ceramic surfaces comprised of a combination of abrasive particles and inorganic glass polishing aid dispersed throughout a three-dimensional nonwoven...
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4838899 |
Curette sharpening hone and method of making
A dental curette hone consisting of a ceramic made from particulate aluminum oxide abrasive. The hone having a curved elongated edge and a flat elongated surface. The curved elongated edge having a...
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4836832 |
Method of preparing coated abrasive having radiation curable binder
Coated abrasive product and a process for producing same. The coated abrasive product comprises a backing, a make coat, and a size coat, and may contain an optional saturant coat, an optional...
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4832705 |
Method of producing abrasive particle-containing bodies
The invention provides a method of producing an abrasive particle, particularly diamond, containing strip. The strip will contain 50 percent or less by volume of the diamond particles and a...
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4832707 |
Metal-bonded tool and method of manufacturing same
This invention provides a metal-bonded tool in which iron-base alloy powder and abrasive grains are bonded to each other. The quantity of the carbon or graphite in the bond being between 2.5 wt %...
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4832706 |
Abrasive media
Particles of urea formaldehyde furan resin are used as abrasive media in wet or dry blasting.
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4828583 |
Coated abrasive binder containing ternary photoinitiator system
Coated abrasive binders made from a photocurable addition-polymerizable composition containing a free-radically-polymerizable monomer and a photoinitiator system containing (i) an arylidonium salt,...
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