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WO/2010/077518A1 |
An abrasive comprising shaped abrasive particles each with an opening. The shaped abrasive particles are formed from alpha alumina and have a first face and a second face separated by a thickness t. The opening in each of the shaped abra...
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WO/2010/077509A1 |
Abrasive particles comprising shaped abrasive particles each having a sidewall, each of the shaped abrasive particles comprising alpha alumina and having a first face and a second face separated by a sidewall and having a maximum thickne...
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WO/2010/075041A2 |
A macro-porous abrasive article includes a spun lace substrate having a macro-porous structure and a coating. The coating is made of a resin binder and abrasive aggregates. The abrasive aggregates are formed from a composition of abrasiv...
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WO/2010/075050A2 |
An abrasive article with improved packing density and mechanical properties and method of making are disclosed. A method of making an abrasive mix with improved processability facilitates improved packing density, resulting in abrasive a...
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WO/2010/070294A1 |
An abrasive element (10) of crystalline abrasive material, comprising a body (12) and has an array of cutting elements (14) which project from a surface (16) of the body (12). The crystalline abrasive material may be a natural or synthet...
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WO/2010/059835A2 |
A method of forming an abrasive article includes directing a beam of electromagnetic radiation at a starting location on an abrasive preform comprising a bonding layer and abrasive grains within the bonding layer, and increasing the powe...
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WO/2010/034492A1 |
A method for producing an article having a composite surface including abrasive particles, comprises pressing a mixture of abrasive particles and a metal binding matrix to form a body, loading said body into a microwave plasma chamber, a...
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WO/2010/031089A1 |
The invention relates to a method for producing a grinding tool comprising diamond particles disposed at a distance from each other, wherein recesses are formed on the surface of a powdery sinterable matrix recess by pressing a pattern i...
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WO/2010/008589A1 |
A polycrystalline diamond compact (PDC) cutter having a body of diamond crystals containing cobalt is coated with Teflon which is impervious to hydrofluoric acid. After the Teflon coating is dried, a segment of the Teflon coating is remo...
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WO/2009/138435A1 |
A cup wheel for a grinding tool for use in grinding semiconductor substrates is presented herein, the wheel comprising: a hub having a pair of opposing faces and a peripheral rim linking said faces; and at least one grinding segment moun...
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WO/2009/129389A1 |
Embodiments of the invention can provide systems and methods for treating grinding wheels and bonded abrasive tools. A process in accordance with an embodiment of this invention is a cryogenic thermal cycling process for grinding wheels ...
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WO/2009/120036A1 |
Disclosed herein is a method of manufacturing a conditioning disc for a polishing pad, which can be used to more precisely machine a plurality of protrusions formed on the conditioning disc. The method includes forming a feedstock having...
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WO/2009/118381A2 |
A method of forming aggregate abrasive grains for use in the production of abrading or cutting tools comprises providing abrasive core particles; coating these particles with adhesive, the adhesive comprising a binding agent and a solven...
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WO/2009/114413A1 |
The present invention relates to a composite material having non-planar geometries and edge-shaving surfaces comprising a CVD diamond coating applied to a composite substrate made from a ceramic material and a preferably unreacted carbid...
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WO/2009/075004A1 |
The present invention relates to an abrasive tool, of the type suitable to be mounted on a machine tool, comprising at least a bearing structure with abrasive material, the said bearing structure being provided with at least a grid (6) w...
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WO/2009/075775A1 |
Abrasive tools and techniques are disclosed that can cut hard, brittle materials to relatively precise dimensions. The tools, which can include a hybrid bond of metal or metal alloy and a resin matrix together with fine abrasive grits, c...
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WO/2009/050749A1 |
The problems deriving from even slight dishomogenities of the density of filling of molds for forming abrasive wheels with a powdery abrasive.mixture induced by the levelling action by repeated passes of a scraper blade moving along the ...
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WO/2009/045940A1 |
Abrasive articles possessing a highly open (porous) structure and uniform abrasive grit distribution are disclosed. The abrasive articles are fabricated using a metal matrix and the open structure is controlled with a porosity scheme, in...
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WO/2009/032964A1 |
To provide a linear abrasive brush member, in which filament parts are hardly broken, a substrate part is excellent in deformability, and also, abrasion ability is excellent. A linear abrasive brush member comprising: an embedded core ma...
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WO/2009/013716A2 |
The present invention relates to a method of placing particles of superhard material on a surface in a random or predetermined pattern, the method including the step of rendering all of or a portion of the surface predisposed to receive ...
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WO/2009/011973A1 |
A structured abrasive article comprises a backing with a topographically structured abrasive layer secured thereto. The topographically structured abrasive layer comprises precisely-shaped abrasive composites. A solid overlayer comprisin...
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WO/2009/009558A1 |
A single-use grinding tool includes a wheel portion having a profiled recess (e.g., such as a U, V, or bowl shape) extending circumferentially along the wheel portion's periphery. A multi-layered bonded abrasive (e.g., 3-dimensional matr...
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WO2008092093B1 |
In an embodiment, an abrasive compact includes ultra-hard particles which are sintered, bonded, or otherwise consolidated into a solid body. The compact also includes various physical characteristics having a continuous gradient, a multi...
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WO/2008/112357A1 |
An abrasive composition including vitreous binding material; abrasive material; and a dimensional stabilizing additive (DSA), present in an amount that is from about 1 to about 40 volume percent of the abrasive composition, wherein the d...
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WO/2008/112899A2 |
A bonded abrasive article is provided that includes abrasive grains within a bond matrix, the abrasive grains including cubic boron nitride (cBN) and the bond matrix including a polycrystalline ceramic phase. The bonded abrasive may have...
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WO/2008/099349A1 |
The invention provides a segment including a working portion comprising a bonding matrix including at least two regions which differ from each other in abrasive particle content, size, type or distribution wherein the regions are derived...
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WO/2008/101063A1 |
An abrasive tool having an elongated handle member, an ultrasonic vibration source operationally connected to the elongated handle member, and a toughened foamed glass ceramic portion operationally connected to the vibration source. The ...
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WO/2008/097284A2 |
Methods of manufacturing a superabrasive element and/or compact are disclosed. In one embodiment, a superabrasive volume including a tungsten carbide layer may be formed. Polycrystalline diamond elements and/or compacts are disclosed. Ro...
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WO/2008/079205A1 |
Embodiments of the present invention relate to diamond-silicon carbide composites, superabrasive compacts including such diamond-silicon carbide composites, and methods of fabricating such diamond-silicon carbide composites and superabra...
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WO/2008/079680A1 |
A high temperature bonded abrasive includes alumina abrasive grits, and a vitreous bond matrix in which the alumina abrasive grits are distributed, the vitreous bond matrix having a cure temperature not less than 1000°C. The alumina abr...
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WO/2008/073698A1 |
A bonded abrasive grinding wheel is provided with a bonded abrasive disc including abrasive grain disposed within a bond matrix, and a mounting plate integrally fastened to the disc. In various embodiments, the mounting plate has a plura...
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WO/2008/063568A1 |
In one embodiment of the present invention, a method of fabricating a superabrasive article is disclosed. A mass of unsintered diamond particles may be infiltrated with metal-solvent catalyst from a metal-solvent- catalyst-containing mat...
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WO/2008/049934A1 |
The method comprises: a first step (1) in which a first layer of metal powder, also termed a binder, is placed on a support, and which is characterized in that it comprises at least the following steps: a second step (2) in which, via a ...
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WO/2008/047949A1 |
The grinding wheel 10 is manufactured in such a manner that; (a) any one of particles 44 for the abrasive grain layer 12 and particles 46 for the substrate layer 13 are put into the press-mold die, and the other particles are put onto th...
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WO/2008/028393A1 |
A process of producing glass fiber net cover with waste glass fiber net sheet includes the following steps: cutting the irregular glass fiber net leftover into short glass fiber material shorter than 20 cm using a crusher, pressing and m...
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WO/2008/006736A1 |
The invention relates to an improved method for cutting open-celled foams based on aminoplasts and to the production of flakes or fine particles, wherein an open-cell foam is soaked with a liquid and the soaked foam is cut.
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WO/2007/110075A1 |
There is disclosed a sanding-plate part (4) for mounting on a tool with a number of suction openings (2), typically at least six, for removal of sanding dust, where a metal plate (5) is coated on its front side (3) with a sanding materia...
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WO/2007/098856A1 |
A highly efficient abrasive preformed body for vibratory finishing of metallic and nonmetallic parts, comprising a cured mixture of a bonding agent and an abrasive filler. The bonding agent is present in the mixture in a percentage by we...
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WO/2007/097969A1 |
A method is described for making an abrasive article comprising a plurality of individual abrasive elements (1) having a first face (5) and an opposing second face (6) and a support (2) for securing the abrasive elements to a shaft (3). ...
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WO/2007/098036A1 |
A method is described for making an abrasive article comprising an abrasive part (1) and a backing (2) fixed to the abrasive part to provide for attachment of the abrasive article at a central location (3) to a rotatable shaft of a drive...
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WO/2007/097932A2 |
An abrasive article comprises an abrasive element (1) having at least a non-porous region, and a hub (3) for securing the abrasive element to a shaft (2) positioned adjacent the non-porous region, the hub having first and second flanges ...
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WO/2007/087820A1 |
The invention relates to a grinding and/or cut-off disc (1) and to a method of producing a grinding and/or cut-off disc comprising a) a central coupling region (2) for coupling to a rotary drive for rotating the grinding and/or cut-off d...
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WO/2007/042920A1 |
A method of treating the working surface of an abrasive compact having a working surface. The working surface, or a region adjacent the working surface, of the abrasive compact is contacted with a halogen gas or a gaseous environment con...
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WO/2007/040865A1 |
A bonded abrasive tool comprises a blend of abrasive grains and a bond component. The blend of abrasive grains comprises a filamentary sol-gel alumina abrasive grain and agglomerated abrasive grain granules. A bonded abrasive tool compri...
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WO/2007/024464A1 |
A surface-textured polishing pad suitable for chemical-mechanical polishing comprises a porous polymeric foam having an average pore cell size in the range of 60 m or less. At least 75% of the pores in the foam have a pore cell size with...
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WO/2007/025226A1 |
A polishing pad comprising particles having an average diameter between 1 nanometer and 100 nanometers, wherein the total weight of the particles is greater than about 3% of the total weight of the pad. Also, a method of manufacturing a ...
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WO/2006/127728A1 |
A coated abrasive article having a reinforced vulcanized fiber backing with an abrasive layer affixed thereto and methods of making and using the same. The reinforced vulcanized fiber backing contains a reinforcing material that comprise...
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WO/2006/124792A2 |
A cutting device (10) comprises a base (12) having a working side (14) that is oriented to face a workpiece (19) from which material is to be removed. A plurality of individual cutting elements (16) are arranged on the working side of th...
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WO/2006/119899A1 |
The invention relates to a grinding and/or cutting-off wheel comprising a) a central coupling area connectable to the rotating shaft of a rotatable drive for rotating the grinding and/or cutting-off wheel about a rotating shaft extending...
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WO/2006/091519A2 |
A coated abrasive article includes a substrate and a patterned set of abrasive structures. Each abrasive structure of the patterned set of abrasive structures has an engineered microfeature, such as an internal structured pore, a surface...
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