Entries |
Document | Title | Date |
20080196318 | Carbide Cutting Insert - Cutting tools and cutting inserts having a wear resistant coating on a substrate comprising a metal carbide particle and a binder. For certain applications, a cutting insert having a wear resistant coating comprising hafnium carbon nitride and a binder comprising ruthenium may provide a greater service life. The wear resistant coating comprising hafnium carbon nitride may have a thickness of from 1 to 10 microns. In another embodiment, the cutting tool comprises a cemented carbide substrate with a binder comprising at least one of iron, nickel and cobalt. | 08-21-2008 |
20080202036 | METHOD AND APPARATUS FOR TREATING THE SURFACE OF A MEDIA, SUCH AS A MAGNETIC HARD DISK, WHILE OPERATING, SUCH AS DURING DYNAMIC ELECTRICAL TESTING - A system and method for treating (e.g. polishing to remove defects) the surface of a media, such as a magnetic hard disk, while in operation, such as during dynamic electrical testing is disclosed. Further, a method for manufacturing a head for treating the surface of a media is disclosed. | 08-28-2008 |
20080209816 | Tools for polishing and associated methods - Methods for making polishing tools and associated tools are disclosed. In one aspect, a method of making a polishing tool is provided. Such a method may include truing a working surface of a nano-diamond impregnated substrate. The method may further include forming asperities on the working surface with a polycrystalline diamond dresser, where the asperities have a height to distance ratio of from about 1:5 to about 5:1 and where the average asperity diameter is less than about 175 μm. | 09-04-2008 |
20080216413 | ABRASIVE ARTICLE WITH SUPERSIZE COATING, AND METHODS - Abrasive articles, and methods of making abrasive articles that include a supersize coating or component, such as one configured to inhibit the collection of dust and/or swarf on the abrasive coating. The supersize component can be applied to the abrasive coating after converting the abrasive article with a laser or other conversion mechanism, whether non-contact or mechanical contact. In some embodiments, no fresh or exposed abrasive or backing surfaces exist; that is, the supersize component covers all surfaces. | 09-11-2008 |
20080229672 | ABRASIVE ARTICLE AND METHOD OF MAKING AND USING THE SAME - An abrasive article comprises a porous abrasive member, a nonwoven filter medium, and a porous attachment fabric. A plurality of openings in the porous abrasive member cooperates with the nonwoven filter medium to allow the flow of particles from an outer abrasive surface of the porous abrasive member to the porous attachment fabric. Methods of making and using the abrasive articles are included. | 09-25-2008 |
20080250722 | ELECTROPLATED ABRASIVE TOOLS, METHODS, AND MOLDS - The present invention provides for an assembly for positioning and holding abrasive particles to be electroplated with a metal. The assembly can include a substrate with a surface that is configured for receiving abrasive particles. The assembly can further include an intermediate layer configured to hold the particles and mask at least a portion of each abrasive particle. Additionally, a method for making an abrasive tool using such an assembly is provided, as well as abrasive tools made thereby. In one aspect of this invention, abrasive tools can have abrasive particle tips that are arranged in accordance with a predetermined vertical pattern and a predetermined horizontal pattern as well as a predetermined particle attitude. | 10-16-2008 |
20080271380 | Method of fabricating abrasive having sliding and grinding effects - An abrasive is fabricated to obtain sliding and grinding effects. In the abrasive, grinding particles are wrapped by a wrapping material. Various sizes and shapes of molds and micro components can be finely polished to obtain mirror-grade surfaces. | 11-06-2008 |
20080282618 | IMPREGNATED MATERIAL WITH VARIABLE EROSION PROPERTIES FOR ROCK DRILLING AND THE METHOD TO MANUFACTURE - A cutting structure that includes a plurality of encapsulated particles dispersed in a first matrix material, the encapsulated particles comprising: an abrasive grit encapsulated within a shell, wherein the shell comprises a second matrix material different from the first matrix material is disclosed. | 11-20-2008 |
20090000208 | Composite Material - A composite material comprises a plurality of cores of material selected from the group comprising carbides, nitrides, carbonitrides, cemented carbides, cemented nitrides, cemented carbonitrides and mixtures thereof, dispersed in a matrix. The matrix comprises the components for making an ultra-hard material, such as diamond or cBN abrasive particles, and a suitable binder. The ultra-hard material is polycrystalline in nature and is typically PCD or PcBN. The cores are typically provided as individual particles or in the form of granules. The granules may be further coated with a second coating, which may be a similar material to that of the cores or of an ultra-hard material of a different grade to that of the first coating. The composite material typically takes on a honeycomb structure of a hard material and cores within the pores of the honeycomb structure bonded to the honeycomb structure. The pores of the honeycomb structure may be ordered or random. A method of producing the composite material and a method of producing a tool component incorporating such a material are also provided. | 01-01-2009 |
20090038234 | Pad Conditioner and Method for Making the Same - A method for making a pad conditioner, includes: (a) providing a first substrate having a grain-mounting surface, and a plurality of diamond abrasive grains, each of which has a retained portion and a cutting portion with at least one sharp corner; (b) forming a plurality of recesses in the first substrate, each of the recesses having a sharp closed end and an enlarged open end, and diverging from the sharp closed end to the enlarged open end in a manner to have a shape corresponding to that of the sharp corner of each of the diamond abrasive grains; (c) disposing each of the diamond abrasive grains in a respective one of the recesses; (d) forming a second substrate on the grain-mounting surface of the first substrate; and (e) removing the first substrate. | 02-12-2009 |
20090090066 | Grinding tool and manufacturing method thereof - A manufacturing method for a grinding tool includes: a substrate being provided. A mechanical process is used to form an uneven portion with a regular shape on a surface of the substrate. A coating method is used to uniformly attach a wear resistance layer on a surface of the uneven portion. A forming method is used to uniformly attach a protective layer on a surface of the wear resistance layer. A grinding tool includes a substrate, a wear resistance layer and a protective layer. A surface of the substrate has an uneven portion. The wear resistance layer is uniformly attached on a surface of the uneven portion and corresponds to the shape of the uneven portion. The protective layer is uniformly attached on a surface of the abrasive layer. Thereby, the grinding tool that is corrosion resistance, wear-resistance, heatproof, chemical-resistance and has a regular or irregular shape is formed. | 04-09-2009 |
20090120008 | IMPREGNATED DRILL BITS AND METHODS FOR MAKING THE SAME - An impregnated cutting structure that includes a plurality of first encapsulated particles, each first encapsulated particle comprising a first abrasive particle encapsulated by a first matrix material shell; and a plurality of second encapsulated particles, the second encapsulated particles comprising a second abrasive particle encapsulated by a second matrix material shell, wherein the first encapsulated particles and the second encapsulated particles have at least one property difference is disclosed. | 05-14-2009 |
20090120009 | Polycrystalline Grits and Associated Methods - A method for forming polycrystalline grits can include forming an abrasive dough, including a plurality of abrasive particles, into a sheet. The sheet can be divided into a plurality of abrasive precursors. By placing the sheet on a stretchable surface, separations among the plurality of abrasive precursors can be revealed by stretching the stretchable surface. The stretchable surface can include a particulate separating agent, and additional particulate separating agent can be distributed in the separations. The abrasive precursors can be sintered to form polycrystalline grits. | 05-14-2009 |
20090173013 | METHOD FOR PREPARING COATED ABRASIVE HAVING THREE-DIMENSIONAL ABRASIVE STRUCTURES - The method of the subject invention, which comprises (a) forming a plurality of abrasive structures having a three-dimensional shape on a backing by using a first abrasive slurry and drying the abrasive structures, and (b) spray-coating in a specific way a second abrasive slurry over the three-dimensional abrasive structures to form a coating layer and drying the coating layer, provides a coated abrasive having improved flexibility, surface roughness, and use life. | 07-09-2009 |
20090199487 | Antiloading compositions and methods of selecting same - An antiloading composition includes a first organic compound. The compound has a water contact angle criterion that is less than a water contact angle for zinc stearate. The first compound also satisfies at least one condition selected from the group consisting of a melting point T | 08-13-2009 |
20090205259 | Resin filled composite backing for coated abrasive products and a method of making the same - An abrasive product for removing stock from a work piece which is defined by a body of composite material consisting of layers of woven fibers bonded together and filled with epoxy-based resin and having a top coat of resin with abrasive particles embedded in the resinous top coat. The invention also includes a method for making such an abrasive product wherein the composite body has woven layers of fiber material bonded together by and filled with resin and a resinous top coat having a plurality of abrasive particular embedded therein is applied over the composite body. | 08-20-2009 |
20090205260 | COATED ABRASIVES - This Invention relates to coated abrasives, a process for their production, and to coated abrasives for use in abrasive-containing tools. | 08-20-2009 |
20090217597 | ABRASIVE-IMPREGNATED CUTTING STRUCTURE HAVING ANISOTROPIC WEAR RESISTANCE AND DRAG BIT INCLUDING SAME - An abrasive-impregnated cutting structure for use in drilling a subterranean formation is disclosed. The abrasive-impregnated cutting structure may comprise a plurality of abrasive particles dispersed within a substantially continuous matrix, wherein the abrasive-impregnated cutting structure exhibits an anisotropic wear resistance. One or more of the amount, average size, composition, properties, shape, quality, strength, and concentration of the abrasive particles may vary within the abrasive-impregnated cutting structure. Anisotropic wear resistance may relate to a selected direction, such as, for example, one or more of an expected direction of engagement of the abrasive-impregnated cutting structure with the subterranean formation and an anticipated wear direction. Anisotropic wear resistance of an abrasive-impregnated cutting structure may be configured for forming or retaining a formation-engaging leading edge thereof. A rotary drag bit including at least one abrasive-impregnated cutting structure is disclosed. | 09-03-2009 |
20090260297 | Hydrophilic and hydrophobic silane surface modification of abrasive grains - A surface-modified abrasive grain includes an abrasive grain as a substrate, and a film on the abrasive grain that includes a relatively hydrophilic silane component and a relatively hydrophobic silane component. The film can be a single film layer or multiple film layers, wherein a film layer most proximal to the abrasive grain has a predominately hydrophilic silane component, and a film layer more distal to the abrasive grain includes predominately a relatively hydrophobic silane component. Coated abrasive products and bonded abrasive products include the surface-modified abrasive grains. | 10-22-2009 |
20090277098 | Abrasive and Method of Fabricating Same - The invention relates to an abrasive wherein abrasive grains are embedded in a matrix comprising a non-cellular, particularly non-foamed thermosetting binder for the abrasive grains, and wherein a contact surface covered by abrasive grains is configured for abrasion of a workpiece. In accordance with the invention the matrix is elastically compliant to such an extent that the abrasive grains covering the contact surface are impressed into the matrix during abrasion. The abrasive grains are dispersed in the matrix such that the consumption of the matrix perpendicular to the contact surface covered originally with abrasive grains releases a further contact surface covered with abrasive grains. The abrasive grains are dispersed in the matrix such that they comply with the return force of the matrix both perpendicular and parallel to the corresponding contact surface of the abrasive. The matrix is bonded to a flexible backing. Bonding the matrix to its backing is achieved directly via the binder contained in the matrix. | 11-12-2009 |
20090307985 | Very low packing density ceramic abrasive grits and methods of producing and using the same - Producing and using very low packing density ceramic abrasive grits comprising various fused aluminum oxide materials with or without other oxide additives, fused aluminum oxide-zirconium oxide co-fusions with or without other oxide additives, or sintered sol gel aluminum oxide materials with or without other oxide additives where the ceramic abrasive grains are preferably made by crushing bubbles of the material. | 12-17-2009 |
20090313905 | METHOD AND APPARATUS FOR ASSEMBLY OF CMP POLISHING PADS - Polishing pads made up of individual polishing elements that protrude through holes in a guide plate are assembled by cascading a number of such polishing elements through a stack of assembly boxes in each of which are located the guide plates such that the polishing elements pass from an uppermost assembly box in the stack to a lowermost assembly box in the stack and in each respective assembly box of the stack are distributed over a respective guide plate therein. Accordingly, at least some of the polishing elements are captured within holes of the respective guide plates in the respective assembly boxes. The cascading may be initiated by displacement of the stack of assembly boxes about a pivot and the distribution of the polishing elements within the assembly boxes may be initiated by lateral displacement of the assembly boxes in the stack. | 12-24-2009 |
20100000158 | POLYCRYSTALLINE DIAMOND ABRASIVE COMPACTS - This invention is for a polycrystalline diamond composite material comprising diamond particles and a binder phase, the polycrystalline diamond composite material defining a plurality of interstices and the binder phase being distributed in the interstices to form binder pools. The invention is characterised in that there is present in the binder phase a separate tungsten carbide particulate phase in excess of 0.05 total volume %, but not greater than 2 volume %, expressed as a % of the total composite material and that the tungsten carbide particulate phase is homogenously distributed in the composite material in such a manner that the relative standard deviation of the tungsten carbide grain size is less than 1. The invention extends to a method of manufacturing the composite material and to a polycrystalline diamond abrasive compact comprising the diamond composite material for use in cutting or abrading of a substrate or in drilling applications. | 01-07-2010 |
20100005727 | METHOD OF FORMING STRUCTURED ABRASIVE ARTICLE - A method of forming a coated abrasive article includes providing a composite binder and abrasive grains on a backing. The composite binder includes at least 5 wt % of a particulate filler having an average particle size of less than 100 nm. The method also includes curing the composite binder. | 01-14-2010 |
20100011672 | COATED ABRASIVE ARTICLE AND METHOD OF MAKING AND USING THE SAME - A coated abrasive article comprises a fabric backing having a presize layer thereon, and an abrasive layer secured to and contacting the presize layer. The abrasive layer comprises a make layer and abrasive particles. The presize layer comprises, based on a total weight of components a) through f), a reaction product of components comprising: a) from 60 to 90 percent by weight of epoxy resin preparable by reaction of epichlorohydrin with bisphenol A; b) from 5 to 25 percent by weight of polyfunctional (meth)acrylate; c) from 10 percent by weight of aromatic acid-functional free-radically polymerizable material having an acid number up to 300; d) from 5 to 15 percent by weight of dicyandiamide; e) an effective amount of photoinitiator; and f) optionally, an effective amount of epoxy cure catalyst. Methods of making and using the same are also disclosed. | 01-21-2010 |
20100024310 | Polycrystalline Aluminum-Containing Grits and Associated Methods - A method of forming a composite polycrystalline aluminum containing grit can include forming a dispersion of alumina and gelling the dispersion of alumina to form a gel. A nitride abrasive particle can be added to either the dispersion of alumina or the gel. After the nitride abrasive particle has been added, the gel can be processed to form a composite polycrystalline alumina nitride grit. | 02-04-2010 |
20100077673 | ANTILOADING COMPOSITION FOR AN ABRASIVE ARTICLE AND ABRASIVE ARTICLE HAVING AN ANTILOADING COATING - To improve the endurance of the antiloading effect of an antiloading composition for an abrasive article. The antiloading composition for an abrasive article, comprising a metal salt of a fatty acid and a binding resin, wherein a coating formed therefrom has wetting tension of more than 44 mN/m. | 04-01-2010 |
20100122498 | Abrasive Sheet Including An Abrasive Layer - An abrasive sheet includes a fabric base, a first adhesive layer applied to the fabric base, a netted web attached to the first adhesive layer and having a plurality of web openings therein, a second adhesive layer applied to the netted web, an abrasive layer having a plurality of abrasive particles spread on the second adhesive layer, and a third adhesive layer applied to the abrasive layer. A method of making the abrasive sheet is also disclosed. | 05-20-2010 |
20100132265 | ABRASIVE WEAR-RESISTANT MATERIALS, METHODS FOR APPLYING SUCH MATERIALS TO EARTH-BORING TOOLS, AND METHODS OF SECURING A CUTTING ELEMENT TO AN EARTH-BORING TOOL USING SUCH MATERIALS - An abrasive wear-resistant material includes a matrix and sintered and cast tungsten carbide granules. A device for use in drilling subterranean formations includes a first structure secured to a second structure with a bonding material. An abrasive wear-resistant material covers the bonding material. The first structure may include a drill bit body and the second structure may include a cutting element. A method for applying an abrasive wear-resistant material to a drill bit includes providing a bit, mixing sintered and cast tungsten carbide granules in a matrix material to provide a pre-application material, heating the pre-application material to melt the matrix material, applying the pre-application material to the bit, and solidifying the material. A method for securing a cutting element to a bit body includes providing an abrasive wear-resistant material to a surface of a drill bit that covers a brazing alloy disposed between the cutting element and the bit body. | 06-03-2010 |
20100162631 | PROCESS FOR MANUFACTURING POLISHING PAD - A method for manufacturing a polishing pad that has a high level of optical detection accuracy and is prevented from causing slurry leak from between the polishing region and the light-transmitting region includes preparing a cell-dispersed urethane composition by a mechanical foaming method; placing a light-transmitting region at a predetermined position on a face material or a belt conveyor, continuously discharging the cell-dispersed urethane composition onto a part of the face material or the belt conveyor where the light-transmitting region is not placed; placing another face material or belt conveyor on the discharged cell-dispersed urethane composition; curing the cell-dispersed urethane composition to form a polishing region including a polyurethane foam, so that a polishing sheet is prepared; applying a coating composition containing an aliphatic and/or alicyclic polyisocyanate to one side of the polishing sheet and curing the coating composition to form a water-impermeable film; and cutting the polishing sheet. | 07-01-2010 |
20100275522 | METHOD AND JIG ASSEMBLY FOR MANUFACTURING OUTER BLADE CUTTING WHEEL - An outer blade cutting wheel comprising an annular thin disc base of cemented carbide and a blade section is manufactured by disposing permanent magnet pieces on the side surfaces and inward of the outer periphery of the base to produce a magnetic field, providing magnetic coated diamond and/or CBN abrasive grains such that the magnetic field may act on the grains, causing the grains to be magnetically attracted to the base outer periphery, and electroplating or electroless plating whereby the abrasive grains are bound to the base outer periphery to form the blade section. | 11-04-2010 |
20100281782 | METHODS OF MAKING AND ATTACHING TSP MATERIAL FOR FORMING CUTTING ELEMENTS, CUTTING ELEMENTS HAVING SUCH TSP MATERIAL AND BITS INCORPORATING SUCH CUTTING ELEMENTS - A method of forming one or more TSP compacts is provided. The method includes placing one or more TSP material layers in an enclosure and surrounding each TSP material layer with at least one of a pre-sintered tungsten carbide powder, pre-cemented tungsten carbide powder, tungsten carbide powder, or partially sintered tungsten carbide substrates. The method also includes exposing the enclosure to a high temperature high pressure process wherein the at least one of a pre-sintered tungsten carbide powder, pre-cemented tungsten carbide powder, tungsten carbide powder, or partially sintered tungsten carbide substrates bond to the TSP material layers forming a stack of TSP material layers including the TSP material layers one over the other with tungsten carbide bonded to each of the TSP material layers and encapsulating each of the TSP material layers. | 11-11-2010 |
20100307066 | Bamboo Charcoal Composite Abrasive Material and Method of Fabricating the Same - An abrasive material is fabricated. The material is made of bamboo charcoal or coconut charcoal. The charcoal has vascular bundles and abrasive particles are uniformly distributed and fixed on inner surfaces of the vascular bundles. Thus, the abrasive material can be used with self-sharpening for grinding, polishing, lubricating, etc. | 12-09-2010 |
20100319269 | SHAPED ABRASIVE PARTICLES WITH LOW ROUNDNESS FACTOR - Shaped abrasive particles comprising alpha alumina and having a cross-sectional shape along a longitudinal axis of the shaped abrasive particles, the cross-sectional shape comprising a non-circular cross-sectional plane, and the shaped abrasive particles comprise an Average Roundness Factor of between about 15% to 0%. | 12-23-2010 |
20110041412 | FRICTION MATERIAL AND ITS MANUFACTURING METHOD - A friction material has a resin amount distribution that is the largest at a portion near a non-friction surface, that becomes lower toward an inside and that is the lowest at a portion near a friction surface. For example, such friction material is manufacture as follows. First, two friction materials are overlapped while the friction surfaces faced with each other. Then, the friction materials are dried at a room temperature. At this time, the resin has such a characteristic as to move while dragged by a solvent that dries from the non-friction surface located outside. Using such characteristic, the resin amount at the portion near the friction surface is lessened. Then, a temperature at the friction surface is made low and a temperature at the non-friction surface is made high in a drying step of the friction material. Thereby, the resin amount at the portion near the friction surface is lessened. | 02-24-2011 |
20110056141 | Superabrasive Elements and Methods for Processing and Manufacturing the Same Using Protective Layers - An exemplary method of processing a polycrystalline diamond element is disclosed. According to the method, a protective layer may be formed over only a selected portion of a polycrystalline diamond element. The polycrystalline diamond element may include a polycrystalline diamond table. At least a portion of the polycrystalline diamond element may be exposed to a leaching solution such that the leaching solution contacts an exposed surface region of the polycrystalline diamond table and at least a portion of the protective layer. The protective layer may be substantially impermeable to the leaching solution. An exemplary method of manufacturing a polycrystalline diamond element is also disclosed. | 03-10-2011 |
20110056142 | AGGREGATE ABRASIVE GRAINS FOR ABRADING OR CUTTING TOOLS PRODUCTION - 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 solvent for the binding agent; separately dropping the adhesive-coated core particles onto a layer of abrasive peripheral particles and covering the dropped core particles with further peripheral particles, in such a way as to form aggregate particles, each of which comprises a core particle having peripheral particles attached to it; consolidating the aggregate particles by causing the solvent to evaporate, i.e. by letting the adhesive set. | 03-10-2011 |
20110107679 | COATED CUTTING INSERT AND METHOD FOR MAKING THE SAME - A coated cutting insert for removing material from a workpiece that includes a substrate is disclosed. A wear-resistant coating on the substrate that includes an α-alumina layer and a Zr— or Hf— carbonitride outer layer deposited on the α-alumina layer. The Zr— or Hf— carbonitride outer layer is subjected to a post-coat wet blasting treatment. The wet blasting changes the stress condition of the exposed alumina coating layer from an initial tensile stress condition to a compressive stress condition. | 05-12-2011 |
20110247278 | POLYCRYSTALLINE DIAMOND CONSTRUCTIONS HAVING IMPROVED THERMAL STABILITY - A method for making a polycrystalline diamond construction is disclosed, which includes the steps of treating a polycrystalline diamond body having a plurality of bonded together diamond crystals and a solvent catalyst material to remove the solvent catalyst material therefrom, wherein the solvent catalyst material is disposed within interstitial regions between the bonded together diamond crystals, replacing the removed solvent catalyst material with a replacement material, and treating the body having the replacement material to remove substantially all of the replacement material from a first region of the body extending a depth from a body surface, and allowing the remaining amount of the replacement material to reside in a second region of the body that is remote from the surface. | 10-13-2011 |
20110258936 | METHODS OF FORMING POLYCRYSTALLINE COMPACTS - Methods of forming a polycrystalline compact for use in an earth-boring tool include sintering a plurality of hard particles with catalyst material to faun a polycrystalline material that includes a plurality of inter-bonded particles of hard material integrally formed with the catalyst material and introducing at least a portion of the polycrystalline material to a reactive material to remove at least a portion of the catalyst material contained within the polycrystalline material. The reactive material may include at least one of a molten glass, an ionic compound, a leaching liquor, and a chemical plasma. The reactive material may be introduced to the polycrystalline material at a temperature of greater than or equal to a melting point thereof. | 10-27-2011 |
20110271603 | DIAMOND-BONDED CONSTRUCTIONS WITH IMPROVED THERMAL AND MECHANICAL PROPERTIES - Diamond-bonded constructions include a diamond-bonded body having a thermally stable region extending a distance below a diamond-bonded body surface. The thermally stable region comprises a matrix phase of bonded-together diamond crystals, and interstitial regions comprising a reaction product. The reaction product is formed by reaction between the diamond crystals and a reactive material. The reactant is a carbide former and the reaction product is a carbide. The diamond-bonded body includes a further diamond region extending from the thermally stable region that comprises the matrix phase and a Group VIII metal disposed within interstitial regions of the matrix phase. The thermally stable region is substantially free of a catalyst material used to initially form the diamond-bonded body. The diamond-bonded body may include a material layer formed from the reaction product that is disposed on a surface of the diamond-bonded body thermally stable region. | 11-10-2011 |
20110289854 | LAYERED PARTICLE ELECTROSTATIC DEPOSITION PROCESS FOR MAKING A COATED ABRASIVE ARTICLE - Disclosed is a method of applying particles to a coated backing. A first layer of particles is created over a second layer of particles on a support surface and the first layer of particles is different in at least one property from the second layer of particles. A coated backing is positioned above the first and second layer of particles. An electrostatic field is applied simultaneously to the first and second layer of particles such that the first layer of particles closer to the coated backing are preferentially attracted to the coated backing first before the second layer of particles. | 12-01-2011 |
20110296765 | ULTRA-HARD CONSTRUCTIONS WITH ENHANCED SECOND PHASE - An ultra-hard construction is disclosed that is prepared by a method comprising the steps of treating a material microstructure having a polycrystalline matrix first phase material and a second phase material from at least a partial region of the material microstructure, wherein the second phase material is disposed within interstitial regions of the material microstructure, and wherein removal of the second phase material creates a porous material microstructure characterized by a plurality of empty voids and replacing the removed second phase material with a replacement material having a thermal characteristic that more closely matched polycrystalline matrix first phase that the second phase material. | 12-08-2011 |
20120000135 | COATED ABRASIVE ARTICLES - Provided are abrasive articles in which the make layer, abrasive particle layer, and size layer are coated onto a backing according to a pre-determined coating pattern. All three components are generally in registration with each other, thereby providing a pervasive uncoated area extending across the backing Advantageously, this configuration provides a coated abrasive that displays superior curl-resistance compared with previously disclosed abrasive articles. Moreover, this configuration resists loading, resists de-lamination, has enhanced flexibility, and decreases the quantity of raw materials required to achieve the same level of performance as conventional abrasive articles. | 01-05-2012 |
20120000136 | METHODS OF FABRICATING A POLYCRYSTALLINE DIAMOND STRUCTURE - In an embodiment, a method of fabricating a polycrystalline diamond structure includes forming an assembly including a sintered polycrystalline diamond body positioned between an aluminum-containing layer and a substrate. The method further includes subjecting the assembly to a high-pressure/high-temperature process to form the polycrystalline diamond structure including a polycrystalline diamond table bonded to the substrate. | 01-05-2012 |
20120005966 | METHODS OF FORMING INSERTS AND EARTH-BORING TOOLS - Methods of forming inserts for earth-boring tools include providing a material in a pattern adjacent a strip, arranging a plurality of superabrasive particles proximate the pattern, and securing at least some of the plurality of superabrasive particles to the strip. The material is configured to attract or secure the plurality of superabrasive particles. Some methods may include imparting like charges to each of a plurality of superabrasive particles, placing the plurality of superabrasive particles over a strip, and securing the superabrasive particles to the strip. In some methods, a first plurality of superabrasive particles may be placed in an array between a first strip and a second strip. A second plurality of superabrasive particles may be placed in an array between the second strip and a third strip. Methods of forming earth-boring rotary drill bits include forming an insert and securing the insert to a body of the bit. | 01-12-2012 |
20120073210 | METHOD OF GROOVING A CHEMICAL-MECHANICAL PLANARIZATION PAD - A method of forming a chemical mechanical polishing pad. The method includes polymerizing one or more polymer precursors and forming a chemical-mechanical planarization pad including a surface, forming grooves in the surface defining lands between the grooves, wherein the grooves have a first width, and shrinking the lands from a first land length (L | 03-29-2012 |
20120102843 | GRAPHENE-COATED DIAMOND PARTICLES, COMPOSITIONS AND INTERMEDIATE STRUCTURES COMPRISING SAME, AND METHODS OF FORMING GRAPHENE-COATED DIAMOND PARTICLES AND POLYCRYSTALLINE COMPACTS - Coated diamond particles have solid diamond cores and at least one graphene layer. Methods of forming coated diamond particles include coating diamond particles with a charged species and coating the diamond particles with a graphene layer. A composition includes a substance and a plurality of coated diamond particles dispersed within the substance. An intermediate structure includes a hard polycrystalline material comprising a first plurality of diamond particles and a second plurality of diamond particles. The first plurality of diamond particles and the second plurality of diamond particles are interspersed. A method of forming a polycrystalline compact includes catalyzing the fox of inter-granular bonds between adjacent particles of a plurality of diamond particles having at least one graphene layer. | 05-03-2012 |
20120131855 | DIAMOND IMPREGNATED BITS AND METHOD OF USING AND MANUFACTURING THE SAME - A drill bit that includes a body having a lower end face for engaging a rock formation, the end face having a plurality of raised ribs extending from the face of the bit body and separated by a plurality of channels therebetween; and at least one of the plurality of ribs having a cutting portion of the at least one rib comprising a first diamond impregnated matrix material and at least a portion of a gage surface region thereof comprising a second diamond impregnated matrix material, the gage surface region backed by a third matrix material is disclosed. | 05-31-2012 |
20120144753 | CEMENTED CARBIDE AND CUTTING TOOL USING SAME - There are provided a cemented carbide high in thermal diffusivity and excellent in wear resistance, and a cutting tool including a base material formed of this cemented carbide. The cemented carbide is a WC based cemented carbide in which a hard phase mainly constituted of WC grains is bound by a binder phase mainly constituted of Co, and is used for a cutting tool. The binder phase is substantially constituted of Co, or Co and Ni. A total content of Co and Ni is not less than 4.5 mass % and not more than 15 mass %. In this cemented carbide, the WC grains have an average diameter of not less than 0.4 μm and not more than 4 μm. | 06-14-2012 |
20120167477 | ABRASIVE PARTICLE AND METHOD OF FORMING SAME - An abrasive article comprising an abrasive particle including a core comprising a compressible material, an intermediate layer comprising a binder material overlying an exterior surface of the core, and an outer layer comprising abrasive grains overlying the intermediate layer. | 07-05-2012 |
20120167478 | IMIDE CROSS-LINKED BINDERS FOR ABRASIVE ARTICLES - An abrasive article includes a fibrous substrate, a binder disposed on the fibrous substrate, and abrasive grains in contact with the binder. The binder includes an imide cross-linked urethane derived from a blocked isocyanate component and an anhydride component. | 07-05-2012 |
20120192499 | Brazed Diamond Tools and Methods for Making the Same - Superabrasive tools and methods for the making thereof are disclosed and described. In one aspect, superabrasive particles are chemically bonded to a matrix support material according to a predetermined pattern by a braze alloy. The brazing alloy may be provided as a powder, thin sheet, or sheet of amorphous alloy. A template having a plurality of apertures arranged in a predetermined pattern may be used to place the superabrasive particles on a given substrate or matrix support material. | 08-02-2012 |
20120222362 | SURFACE-MODIFIED POLYCRYSTALLINE DIAMOND AND PROCESSING METHOD THEREOF - A surface-modified polycrystalline diamond and a processing method thereof are provided in the present disclosure. The polycrystalline diamond comprises a polycrystalline diamond body, holes are formed on the polycrystalline diamond body after a catalyst metal is removed, and the holes are embedded with a non-catalyst metal after the catalyst metal is removed therefrom. Thus, thermal damage and stress damage to the polycrystalline diamond during operations at a high temperature are eliminated, improving the thermal conductivity of the surface of the polycrystalline diamond, reducing the temperature of the area around the operating point of the polycrystalline diamond and, therefore, the service life of the polycrystalline diamond is prolonged. | 09-06-2012 |
20120240475 | METHOD AND DEVICE FOR PRODUCING A BASE BODY WITH HARD MATERIAL PARTICLES - In a method for producing a base body with hard material particles, an adhesive ( | 09-27-2012 |
20120304544 | Cubic Boron Nitride Sintered Body and Coated Cubic Boron Nitride Sintered Body and Preparation Processes Thereof - A cubic boron nitride sintered body is excellent in wear resistance. The cubic boron nitride sintered body has about 30 to about 70% by volume of cubic boron nitride; and as the reminder, a binder phase having at least one selected from an oxide, carbide, nitride and boride of Ti, Al, Zr, Y, Ce, Mg or Ca and mutual solid solutions thereof; and inevitable impurities, wherein the cubic boron nitride sintered body contains α-type Al | 12-06-2012 |
20120324799 | COATED PARTICLES AND RELATED METHODS - Coated particles comprise a core particle comprising a superhard material and having an average diameter of between 1 μm and 500 μm. A coating material is adhered to and covers at least a portion of an outer surface of the core particle, the coating material comprising an amine terminated group. A plurality of nanoparticles selected from the group consisting of carbon nanotubes, nanographite, nanographene, non-diamond carbon allotropes, surface modified nanodiamond, nanoscale particles of BeO, and nanoscale particles comprising a Group VIIIA element is adhered to the coating material. | 12-27-2012 |
20130074418 | ABRASIVE ARTICLES INCLUDING ABRASIVE PARTICULATE MATERIALS, COATED ABRASIVES USING THE ABRASIVE PARTICULATE MATERIALS AND METHODS OF FORMING - An abrasive article includes an abrasive particulate material made of alumina crystals and a primary additive composition impregnated within the abrasive particulate material, the primary additive composition including a combination of Mg and Ca, wherein Mg and Ca are present in an additive ratio [Mg:Ca] within a range between about 1:1 and about 10:1, and further comprising at least about 0.2 wt % Ca for the total weight of the abrasive particulate material. | 03-28-2013 |
20130152480 | METHODS FOR MANUFACTURING POLYCRYSTALLINE ULTRA-HARD CONSTRUCTIONS AND POLYCRYSTALLINE ULTRA-HARD CONSTRUCTIONS - Polycrystalline ultra-hard constructions are made by subjecting a sintered ultra-hard body, substantially free of a sintering catalyst material, to a further HPHT process. The process is controlled to initially melt and infiltrating a filler material into the sintered ultra-hard body to form a filler region having interstitial regions filled with the filler material. The filler region extends a partial depth into the sintered ultra-hard body and is formed at a temperature below the melting temperature of an infiltrant material. Next, the process is controlled to melt and infiltrate the infiltrant material into the sintered ultra-hard body to form an infiltrant region that extends a partial depth into the sintered ultra-hard body. A portion of the filler region and/or the infiltrant region may be removed to form a thermally stable region. | 06-20-2013 |
20130167446 | CUTTER ASSEMBLY WITH AT LEAST ONE ISLAND AND A METHOD OF MANUFACTURING A CUTTER ASSEMBLY - A cutter assembly includes a substrate and at least one island. The substrate includes a surface circumscribed by a peripheral edge, a flank surface extending from the peripheral edge, and at least one pocket with an opening on the surface and spaced apart from the peripheral edge. The at least one pocket extends from the opening towards an interior of the substrate. The at least one island is in the at least one pocket, and the at least one island includes a cutting surface that is exposed by the opening of the at least one pocket. | 07-04-2013 |
20130174493 | DRESSING AND MANUFACTURE OF OUTER BLADE CUTTING WHEEL - An outer blade cutting wheel ( | 07-11-2013 |
20130205676 | ABRASIVE ARTICLE AND METHOD OF FORMING - An abrasive article including a substrate made of a wire, abrasive particles affixed to the substrate, the abrasive particles having a first coating layer overlying the abrasive particles, and a second coating layer different than the first coating layer overlying the first coating layer. The abrasive article further including a bonding layer overlying the substrate and abrasive particles. | 08-15-2013 |
20130205677 | METHODS OF FABRICATING A POLYCRYSTALLINE DIAMOND COMPACT - In an embodiment, a method of fabricating a polycrystalline diamond compact is disclosed. The method includes sintering a plurality of diamond particles in the presence of a metal-solvent catalyst to form a polycrystalline diamond body; leaching the polycrystalline diamond body to at least partially remove the metal-solvent catalyst therefrom, thereby forming an at least partially leached polycrystalline diamond body; and subjecting an assembly of the at least partially leached polycrystalline diamond body and a cemented carbide substrate to a high-pressure/high-temperature process at a pressure to infiltrate the at least partially leached polycrystalline diamond body with an infiltrant. The pressure of the high-pressure/high-temperature process is less than that employed in the act of sintering of the plurality of diamond particles. | 08-15-2013 |
20130205678 | POLYCRYSTALLINE SUPERHARD MATERIAL - A method for making polycrystalline superhard material comprises providing an electrically conductive substrate defining at least one deposition surface, electrophoretically depositing charged superhard particles or grains on to the deposition surface(s) of the substrate to form a pre-sinter body, and subjecting the pre-sinter body to a temperature and pressure at which the superhard material is thermodynamically stable, sintering and forming polycrystalline superhard material. There is also disclosed a superhard wear element comprising a polycrystalline superhard material produced by such a method. | 08-15-2013 |
20130263519 | CUTTER ASSEMBLY WITH AT LEAST ONE ISLAND AND A METHOD OF MANUFACTURING A CUTTER ASSEMBLY - A cutter assembly and a method of making the cutter assembly are disclosed. A method of fabricating a cutting element having at least one island in at least one pocket of a substrate may comprise steps of providing the substrate with at least one pocket, and the at least one substrate is in a final state of the substrate; providing the at least one island, wherein the at least one island is in a final state of the island, wherein in the final state, chemical composition, shape, phase distribution and content, density and mechanical properties are finalized without changes; disposing the at least one island in the at least one pocket of the substrate; and securing the at least one island to at least one substrate. | 10-10-2013 |
20130283700 | Printed Chemical Mechanical Polishing Pad - A method of fabricating a polishing layer of a polishing pad includes successively depositing a plurality of layers with a 3D printer, each layer of the plurality of polishing layers deposited by ejecting a pad material precursor from a nozzle and solidifying the pad material precursor to form a solidified pad material. | 10-31-2013 |
20130283701 | MANUFACTURE OF THERMALLY STABLE CUTTING ELEMENTS - A method of forming a thermally stable cutting element that includes disposing at least a portion of a polycrystalline abrasive body containing a catalyzing material to be leached into a leaching agent; and subjecting the polycrystalline abrasive object to an elevated temperature and pressure is disclosed. Thermally stable cutting elements and systems and other methods for forming thermally stable cutting elements are also disclosed. | 10-31-2013 |
20130298471 | ABRASIVE PRODUCTS AND METHODS FOR FINISHING SURFACES - An engineered coated abrasive product having a three dimensional pattern of abrasive structures formed by embossing an abrasive slurry formulation that was first surface coated with a functional powder, wherein the abrasive slurry includes green, unfired abrasive aggregates having a generally spheroidal or toroidal shape, the aggregates formed from a composition comprising abrasive grit particles and a nanoparticle binder. The coated abrasive product is capable of finishing and repairing defects in surfaces, including coated surfaces. | 11-14-2013 |
20130333297 | HIGH TOUGHNESS THERMALLY STABLE POLYCRYSTALLINE DIAMOND - A mixture for fabricating a cutting table, the cutting table, and a method of fabricating the cutting table. The mixture includes a cutting table powder and a binder. The binder includes at least one carbide formed from an element selected from at least one of Groups IV, V, and VI of the Periodic Table. The carbide is in its non-stoichiometric and/or stoichiometric form. The binder can include the element. In certain embodiments, the binder includes one or more of the cutting table powder and a catalyst. The cutting table is formed by sintering the mixture using a solid phase sintering process or a near solid phase sintering process. When forming or coupling the cutting table to a substrate, a divider is positioned and coupled therebetween to ensure that the sintering process that forms the cutting table occurs using the solid phase sintering process or the near solid phase sintering process. | 12-19-2013 |
20140000176 | LAYERED PARTICLE ELECTROSTATIC DEPOSITION PROCESS FOR MAKING A COATED ABRASIVE ARTICLE | 01-02-2014 |
20140007512 | TECHNIQUES AND MATERIALS FOR THE ACCELERATED REMOVAL OF CATALYST MATERIAL FROM DIAMOND BODIES - A method for making a thermally stable cutting element may include forming an acid mixture containing two different acid species by combining an acid solution and at least one acid-forming compound, wherein the at least one acid-forming compound is provided in solid form, and wherein the at least one acid-forming compound produces an acid that is different than the acid solution; treating at least a portion of a sintered diamond body by placing the sintered diamond body in the acid mixture, wherein the sintered diamond body comprises: a matrix phase of bonded-together diamond grains; a plurality of interstitial regions dispersed within the matrix phase; and a metal material disposed within a plurality of the interstitial regions; wherein the treating removes the metal material from at least a portion of the plurality of interstitial regions; and removing the sintered diamond body from the acid mixture after a predetermined length of time, wherein at least a portion of the diamond body removed from the acid mixture is substantially free of the metal material and is a thermally stable diamond body. | 01-09-2014 |
20140013670 | METHODS OF FORMING COMPOSITE PARTICLES, COMPOSITIONS OF MATTER COMPRISING COMPOSITE PARTICLES, AND METHODS OF FORMING EARTH-BORING TOOLS - Methods of forming composite particles include forming a source material over a plurality of nucleation cores and forming a catalyst material over the source material. Compositions of matter include a plurality of composite particles, each particle of the plurality comprising a plurality of nucleation cores, a source material disposed over the nucleation cores, and a catalyst material disposed over the source material. Methods of forming earth-boring tools include forming a plurality of composite particles, combining the plurality of composite particles with a plurality of grains of hard material, and catalyzing the formation of inter-granular bonds between the composite particles and the grains of hard material to faun a polycrystalline material. The plurality of in situ nucleated grains of hard material and the plurality of grains of hard material may be interspersed and inter-bonded. | 01-16-2014 |
20140059943 | INFILTRATION COMPOSITIONS FOR PCD BY USING COATED CARBIDE SUBSTRATES - A polycrystalline diamond compact made from a high pressure, high temperature process is provided. The compact includes a metal carbide substrate including a binder and at least one inner layer of polycrystalline diamond disposed on the substrate. The polycrystalline diamond has a diamond phase and a metal phase forming an interconnected mutually exclusive network. The metal phase is a material different than that of the binder of the substrate to provide improved diamond sintering and final polycrystalline diamond compact properties. Prior to processing at least one coating is disposed on the substrate, and the layer of diamond particles is disposed on the at least one coating. During the high pressure, high temperature process the coating melts and fully sweeps into the diamond layer. | 03-06-2014 |
20140109489 | STRUCTURED ABRASIVE ARTICLES AND METHOD OF MANUFACTURING THE SAME - A structured abrasive article having an extensible base member; a three-dimensional element including abrasive particles and binder therefore; and a resin layer that binds the extensible base member and the three-dimensional element. | 04-24-2014 |
20140115971 | POLYCRYSTALLINE DIAMOND COMPACTS AND RELATED METHODS - Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) and methods of fabricating polycrystalline diamond tables and PDCs in a manner that facilitates removal of metal-solvent catalyst used in the manufacture of polycrystalline diamond tables of such PDCs. | 05-01-2014 |
20140115972 | THICK THERMAL BARRIER COATING FOR SUPERABRASIVE TOOL AND METHOD OF MAKING THE SAME - The present disclosure relates to cutting tool edges that include on a rake face a superabrasive layer and a HPHT sintered or HPHT bonded cap layer. The cap layer improves adhesion between the superabrasive layer and an optional coating system for the cutting insert and acts as a thick anti-friction layer and/or a thermal barrier coating. | 05-01-2014 |
20140123562 | THERMALLY STABLE POLYCRYSTALLINE DIAMOND MATERIAL WITH GRADIENT STRUCTURE - A diamond construction may include a diamond body comprising a plurality of bonded-together diamond crystals forming a matrix phase, and a plurality of interstitial regions disposed between the bonded-together diamond crystals, the diamond body comprising: a first diamond region extending a depth from a surface of the diamond body being substantially free of a catalyst material used to form the diamond body, wherein the first diamond region comprises the matrix phase and in at least a portion of the plurality of interstitial spaces, the first diamond region comprises a metal carbide and an inert metal, wherein the metal carbide is formed as a result of reaction between the diamond crystals in the matrix phase and a carbide-forming metal; and a second diamond region adjacent the first diamond region comprising the matrix phase and a Group VIII metal in the interstitial regions. | 05-08-2014 |
20140173995 | METHODS OF MAKING A DRILLING TOOL WITH LOW FRICTION COATINGS TO REDUCE BALLING AND FRICTION - Provided are methods to make a drilling tool with low friction coatings to reduce balling and friction. In one form, the method includes providing one or more drilling tool components with specified locations for fitting cutters, inserts, bearings, rollers, additional non-coated components, or combinations thereof; cleaning the one or more drilling tool components; applying masking for fitting cutters, inserts, bearings, rollers, additional non-coated components or combinations thereof; applying a multi-layer low friction coating to the cleaned specified locations; removing the masking from the cleaned and coated specified locations of the one or more drilling components; inserting cutters and inserts and assembling moving parts to the cleaned and coated specified locations of the one or more drilling tool components; and assembling the one or more drilling tool components to form a drilling tool. | 06-26-2014 |
20140208659 | COATINGS FOR CUTTING TOOLS - In one aspect, cutting tools are described having coatings adhered thereto. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising at least one composite layer deposited by chemical vapor deposition comprising an aluminum oxynitride phase and a metal oxide phase, the metal oxide phase including at least one oxide of a metallic element selected from Group IVB of the Periodic Table. | 07-31-2014 |
20140208660 | CONTROL OF DEFECTS AND SWEEP PATTERN IN PDC BY TREATING CARBIDE SUBSTRATE BEFORE SWEEP - A method for forming a polycrystalline diamond compact (PDC) includes treating a carbide substrate having a cobalt content therein with an acid, e.g., aqua regia, to remove cobalt from a surface portion of the carbide substrate; disposing diamond crystals on the treated carbide substrate; disposing a sweep material on the diamond crystals on a surface of the diamond opposite the carbide substrate; and applying high temperature and pressure to the carbide substrate, the diamond crystals and the sweep material such that the diamond crystals are sintered into a polycrystalline diamond attached to the carbide substrate to form the polycrystalline diamond compact. | 07-31-2014 |
20140208661 | ABRASIVE TOOL WITH FLAT AND CONSISTENT SURFACE TOPOGRAPHY FOR CONDITIONING A CMP PAD AND METHOD FOR MAKING - An abrasive tool with flat and consistent surface topography for conditioning a CMP pad and method for making are disclosed. The abrasive tool includes abrasive grains coupled to a low coefficient of thermal expansion (CTE) substrate through a metal bond. There is an overall CTE mismatch that ranges from about 0.1 μm/m-° C. to about 5.0 μm/m-° C. The overall CTE mismatch is the difference between the CTE mismatch of the abrasive grains and the metal bond and the CTE mismatch of the low CTE substrate and the metal bond. | 07-31-2014 |
20140215925 | Thick Cubic Boron Nitride (cBN) Layer and Manufacturing Process Therefor - A method for forming a stand-alone wafer or a coating on a substrate uses a composite of cubic boron nitride (cBN) particles and other materials, such as nitrides, carbides, carbonitrides, borides, oxides, and metallic phase materials. The wafer or coating may be formed of a thickness up to about 1000 microns for improved wear life. The density of material within the wafer or coating may be varied according to desired parameters, and a gradient of particle sizes for the cBN may be presented across the thickness of the material. | 08-07-2014 |
20140237904 | CVI BONDED AND COATED PCBN TO WC TOOL BODY - A cutting tool and a method of making a cutting tool are provided. The cutting tool may comprise a sintered superabrasive tip, a tool body and a non-brazing material. The sintered superabrasive tip may have a plurality of superhard particles. The tool body may retain the superabrasive tip. The non-brazing material fills a gap between the superabrasive tip and the tool body. The method of making a cutting tool may comprise steps of providing a superabrasive tip; providing a tool body; filling a gap between the superabrasive tip and the tool body with a non-brazing material; and depositing a first coating to the non-brazing material. | 08-28-2014 |
20140259959 | DELAYED DIFFUSION OF NOVEL SPECIES FROM THE BACK SIDE OF CARBIDE - A polycrystalline diamond compact (PDC) is fabricated using a process of delayed diffusion of a diffusion species (e.g., a metalloid) introduced from the back side of a cemented carbide further away from the diamond grit or from the flank side of the cemented carbide, as opposed to the side of the cemented carbide adjacent to the diamond grit. The process of fabricating the PDC includes depositing, in a metal container, a diamond grit, a cemented carbide, and a diffusion species, then applying a high pressure and high temperature (HPHT) to the contents of the metal container wherein (1) the binder of cemented carbide diffuses across the diamond grit, and (2) the diffusion species diffuses through the cemented carbide, and then through the diamond grit, thus providing a protective coating to the diamond grains of the PDC. | 09-18-2014 |
20140290145 | SUPERABRASIVE MATERIAL WITH PROTECTIVE ADHESIVE COATING AND METHOD FOR PRODUCING SAID COATING - A coating on mono- or poly-crystalline diamond or diamond-containing material includes a first adhesive layer formed directly on the diamond or diamond-containing material, the first layer including tungsten and tungsten carbide alloyed with fluorine in an amount of 0.001 to 0.12 wt % calculated on the total weight of the first layer. The coating further includes a second protective layer formed on the first layer, the second layer including at least tungsten alloyed with fluorine in an amount of 0.001 to 0.12 wt % calculated on the total weight of the second layer. The adhesive layer provides excellent bond strength to diamond, while the protective layer provides good protection against oxidation and molten metals used for attaching the coated diamonds to tools. | 10-02-2014 |
20140290146 | POLYCRYSTALLINE DIAMOND CUTTING ELEMENTS WITH ENGINEERED POROSITY AND METHOD FOR MANUFACTURING SUCH CUTTING ELEMENTS - A method for facilitating infiltration of an infiltrant material into a TSP material during re-bonding of the TSP material to a substrate, by enhancing the porosity of the TSP material near the interface with the substrate is provided. Cutting elements formed by such method and downhole tools including such cutting elements are also provided. | 10-02-2014 |
20140360103 | POLYCRYSTALLINE DIAMOND COMPACTS, CUTTING ELEMENTS AND EARTH-BORING TOOLS INCLUDING SUCH COMPACTS, AND METHODS OF FORMING SUCH COMPACTS AND EARTH-BORING TOOLS - Methods of forming a polycrystalline diamond compact for use in an earth-boring tool include forming a body of polycrystalline diamond material including a first material disposed in interstitial spaces between inter-bonded diamond crystals in the body, removing the first material from interstitial spaces in a portion of the body, selecting a second material promoting a higher rate of degradation of the polycrystalline diamond compact than the first material under similar elevated temperature conditions and providing the second material in interstitial spaces in the portion of the body. Methods of drilling include engaging at least one cutter with a formation and wearing a second region of polycrystalline diamond material comprising a second material faster than the first region of polycrystalline diamond material comprising a first material. Polycrystalline diamond compacts and earth-boring tools including such compacts are also disclosed. | 12-11-2014 |
20150047266 | METHODS FOR MANUFACTURING POLISHING PAD AND POLISHING APPARATUS - The present invention relates to a method for manufacturing a polishing pad. The method of the invention includes the steps of (a) providing a releasing carrier; (b) providing a foaming resin composition; (c) coating the foaming resin composition of the step (b) on the carrier of the step (a); and (d) curing the foaming resin composition of the step (c). The invention also provides a process for manufacturing a polishing apparatus. | 02-19-2015 |
20150290771 | ABRASIVE ARTICLE AND METHOD FOR MAKING THE SAME - An abrasive article comprising a plurality of abrasive grains that are precisely arranged in accordance with a predetermined pattern and are chemically bonded with a matrix material, and a method for the making thereof are disclosed. A coating layer on each of the abrasive grains functions as a bridge to form chemical bonding between the abrasive grains and the matrix material. In addition to a plated material, the matrix material can include a braze, a solder, a sintered material, an infiltrant, an organic material, and a vitrified material. The method for making the abrasive article comprises the steps of: coating abrasive grains with a coating layer that chemically bonds to each of the abrasive grains; arranging the coated abrasive grains in accordance with a predetermined pattern; and chemically bonding the coated abrasive grains with a matrix material. | 10-15-2015 |
20150290773 | Abrasive Product Coated with Agglomerated Particles Formed in Situ and Method of Making the Same - The present invention relates to a coated abrasive article containing abrasive agglomerates based on target cores that provide an extended surface. Target cores are defined as geometric shapes, e.g., spherical, rectangular, tetrahedral, conical, cylindrical, pyramidal or combinations and mixtures thereof. The preferred cores are porous structures with their own abrasive capacity as a grinding aid element. They are bonded on substrates, e.g., textile fabrics, plastic films, saturated or no treated papers, vulcanized fibers, non-wovens and mixtures thereof to produce extended surfaces on which are deposited the working abrasive particles, e.g., aluminum oxide, silicon carbide, zirconia alumina, ceramic aluminum oxide and mixtures thereof, through an electrostatic field to improve performance capabilities. The electrostatic field promotes orientation of the deposited grains around the cores with exposed sharp edges over the extended area, causing as a secondary effect the compacting of the abrasive grains. The abrasive grains are agglomerated in situ via nucleation of the surface of the target cores during the coated abrasive manufacturing process. Incorporation of the abrasive particles on the interstices between target cores also produces increased life of the coated abrasive article. The invention includes the method of manufacturing the abrasive article by forming the agglomerated particles in situ during the manufacturing process. | 10-15-2015 |
20160002515 | GLASS COATED CBN PARTICLES AND METHOD OF MAKING THEM - A coated superabrasive material and method of making the coated superabrasive material are provided. The coated superabrasive material may comprise a core and a glass coating. The core may comprise a superabrasive crystal. The glass coating may evenly cover an outside surface of the core. The glass coating may range from about 1 wt % to about 15 wt % of the superabrasive crystal. The glass coating may have thickness from about 1 micron to about 2 microns. | 01-07-2016 |
20160016290 | SUPERABRASIVE ELEMENTS AND METHODS FOR PROCESSING AND MANUFACTURING THE SAME USING PROTECTIVE LAYERS - A method of processing a polycrystalline diamond element includes forming a protective layer over a selected portion of a polycrystalline diamond element, the polycrystalline diamond element having a polycrystalline diamond table that includes a superabrasive face, a superabrasive side surface, and a chamfer extending between the superabrasive face and the superabrasive side surface. A portion of the superabrasive side surface is covered by the protective layer and the protective layer is not formed over the chamfer. The method includes exposing at least a portion of the polycrystalline diamond element to a leaching solution. A polycrystalline diamond element has a polycrystalline diamond table that includes a leached volume extending from the superabrasive face to a portion of the chamfer proximate to the superabrasive side surface, and the leached volume does not substantially extend along the superabrasive side surface. | 01-21-2016 |
20160167200 | POLYCRYSTALLINE DIAMOND | 06-16-2016 |
20160177153 | COMPOSITE SHAPED ABRASIVE PARTICLES AND METHOD OF FORMING SAME | 06-23-2016 |
20160177154 | Shaped abrasive particles and method of forming same | 06-23-2016 |
20160184971 | COLORED ABRASIVE ARTICLES AND METHOD OF MAKING COLORED ABRASIVE ARTICLES - Embodiments of the present disclosure are directed to methods of making high grade colored abrasive articles that are color stable at high temperatures, such as color stable at temperatures of at least about 185 degrees Celsius such that the bonded abrasive body can be cured at such elevated temperatures without substantially changing the color of the bonded abrasive body. | 06-30-2016 |
20160184976 | ABRASIVE TOOLS AND METHODS FOR FORMING SAME - An abrasive tool can include a bonded abrasive including a body and a barrier layer bonded to a major surface of the body. The body can include abrasive particles contained within a bond material. The barrier material can include a metal-containing film. In an embodiment, the barrier layer may further include a polymer-containing film. In another embodiment, the barrier layer may include a biaxially oriented material. The abrasive tool may be formed such that the barrier layer is formed in-situ with the formation of the bonded abrasive. | 06-30-2016 |
20160186026 | ABRASIVE ARTICLES AND METHODS FOR FORMING SAME - An abrasive article can include a body including a bond material and abrasive particles contained within the bond material. The abrasive particles can include nanocrystalline alumina. The bond material can include an organic material. In an embodiment, the nanocrystalline alumina may have an average crystallite size of not greater than 1.5 microns. In another embodiment, the bond material and the abrasive particles may be mixed and the mixture may cure to form the abrasive article of embodiments herein. | 06-30-2016 |
20160186027 | ABRASIVE ARTICLES AND METHODS FOR FORMING SAME - An abrasive article can include a body including a bond material and abrasive particles contained within the bond material. The abrasive particles can include nanocrystalline alumina. The bond material can include an inorganic material including a ceramic. | 06-30-2016 |