Abstract: Provided are a pressure-sensitive adhesive tape, a polishing pad, a method of manufacturing the same, a polishing device and a method of manufacturing a glass substrate. The illustrative pressure-sensitive adhesive tape may be a pressure-sensitive adhesive tape for a polishing material. The pressure-sensitive adhesive tape may be effectively fixed to a surface plate without bubbles, and have excellent resistance to water and a polishing solution and shear strength applied in a polishing process. In addition, the pressure-sensitive adhesive tape may be easily removed from a carrier or surface plate for a polishing pad without residues after polishing.

Abstract: A rotary dresser includes a cored bar, an electroformed layer, and superabrasive grains fixed to an outer circumferential surface of the electroformed layer, and a plurality of island regions in which a plurality of superabrasive grains is gathered is provided at certain intervals. Since a plurality of the island regions in which a plurality of the superabrasive grains is gathered is provided at certain intervals, the same degree of dressing accuracy can be obtained as in a case in which expensive large superabrasive grains are fixed at a low density using cheap and small superabrasive grains, it is possible to decrease the contact area of a single superabrasive grain, and favorable cutting quality can be obtained.

Abstract: Diamond bonded constructions comprise a body comprising a plurality of bonded together diamond grains with interstitial regions disposed between the grains that are substantially free of the catalyst material used to initially sinter the body. A metallic substrate is attached to the body, and a braze joint is interposed between the body and the substrate. The body is metallized to include a metallic material disposed along a substrate attachment surface in contact with the braze joint, wherein the metallic material is different from the braze joint material. The metallic material may exist within a region of the body extending fully or partially into the body, and/or may exist as a layer extending away from the substrate attachment surface. The body includes a working surface characterized by empty interstitial regions or by interstitial regions filled with an infiltrant material, wherein the infiltrant material is different from the metallizing material.

Abstract: 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.

Abstract: A method of forming a mixture including a ceramic material into a sheet, sectioning at least a portion of the sheet using a mechanical object and forming at least one shaped abrasive particle from the sheet, such that the at least one shaped abrasive particle can have a two-dimensional shape as viewed in a plane defined by a length and a width of the shaped abrasive particle selected from the group consisting of polygons, ellipsoids, numerals, Greek alphabet characters, Latin alphabet characters, Russian alphabet characters, complex shapes having a combination of polygonal shapes, and a combination thereof.

Abstract: A method of forming an abrasive article includes depositing a mixture into an opening of a substrate, contacting an exposed surface of the mixture in the opening to a texturing form to form a textured preform, and removing the mixture from the opening and forming an abrasive particle having a textured surface.

Abstract: A cleaning pad is provided. The cleaning pad includes a cover layer, a core, and an attachment layer. The core is located between the cover layer and the attachment layer. A porous abrasive substance is applied to the attachment layer.

Abstract: A multilayer chemical mechanical polishing pad is provided, having: a polishing layer having a polishing surface, a counterbore opening, a polishing layer interfacial region parallel to the polishing surface; a porous subpad layer having a bottom surface and a porous subpad layer interfacial region parallel to the bottom surface; and, a broad spectrum, endpoint detection window block comprising, comprises an olefin copolymer; wherein the window block exhibits a uniform chemical composition across its thickness; wherein the polishing layer interfacial region and the porous subpad layer interfacial region form a coextensive region; wherein the multilayer chemical mechanical polishing pad has a through opening that extends from the polishing surface to the bottom surface of the porous subpad layer; wherein the counterbore opening opens on the polishing surface, enlarges the through opening and forms a ledge; and, wherein the window block is disposed within the counterbore opening.

Abstract: Polycrystalline compacts include a hard polycrystalline material comprising first and second regions. The first region comprises a first plurality of grains of hard material having a first average grain size, and a second plurality of grains of hard material having a second average grain size smaller than the first average grain size. The first region comprises catalyst material disposed in interstitial spaces between inter-bonded grains of hard material. Such interstitial spaces between grains of the hard material in the second region are at least substantially free of catalyst material. In some embodiments, the first region comprises a plurality of nanograins of the hard material. Cutting elements and earth-boring tools include such polycrystalline compacts.

Abstract: A method of forming a casing bit includes positioning a cutting element adjacent an outer surface of a casing bit body. The cutting element has a superhard material and a bonding material that is used to bond the cutting element to a body of the casing bit. The bonding material may be a weldable or brazable metal alloy, and a welding process or a brazing process, respectively, may be used to bond the cutting elements to body of the casing bit. Casing bits fabricated using such methods may exhibit reduced bond strength between the cutting elements and the casing bit body.

Abstract: A flat or center depressed abrasive grinding wheel, comprising an abrasive discoidal element which is associable, substantially coaxially, with the free end of a rotating shaft of a grinder, having at least one substantially central through hole, a first face which can be arranged, in the assembly configuration, so as to be substantially directed toward the grinder and which forms the back of the discoidal element, and a second face, which is opposite to the first face. The discoidal element comprises at least one first layer of a discoidal abrasive mix defined at the first face and at least one second layer of discoidal abrasive mix defined at least one portion of the second face. The first and second layers of abrasive mix are mutually superimposed and jointly associated. The second layer of abrasive mix has an inside diameter that is substantially larger than the diameter of the through hole.

Abstract: A method of producing a drill bit, such as for drilling a well into an earth formation, includes forming a bit body having a plurality of blades. Each of the plurality of blades includes a forward facing face with respect to a direction of rotation of the bit. The forward facing face includes individual cutter pockets at least partially recessed into the forward facing face. The method also includes securing a cutting element at least partially within each of the individual cutter pockets. Each cutting element has an abrasion resistance. Each of the plurality of blades is formed of a blade material having an abrasion resistance that is less than the abrasion resistance of the cutting element.

Abstract: The invention relates to an elastically deformable composite material suitable to be processed further into sheet-like abrasive products, comprising a sheet-like supporting base coated or impregnated with a prepolymer material which obtains thermosetting properties when thermally post-cured, or consisting of a coated or impregnated supporting base, characterized in that the supporting base comprises at least one layer of bonded fibers selected among inorganic fibers and organic synthetic fibers, if necessary mixed with natural fibers. Moreover, it relates to a method for the manufacture of the composite material.

Abstract: A self-renewing cutting tool or cutting element is formed by bonding an overcoat, cladding or layer of highly abrasive, very durable material on a surface of a substrate or load-bearing element. The cutting layer is a composite structure and includes appropriately sized, multi-edged pieces of a superhard material, such as tungsten carbide, dispersed in a softer material which produces high strength bonds between and among the pieces and the substrate or load-bearing element.

Abstract: 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.

Abstract: 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.

Abstract: A method of loaning a diamond compact includes adding an additive material to a tungsten carbide substrate, the additive material including a transition metal carbide other than tungsten carbide, placing a diamond body adjacent to an interface surface of the tungsten carbide substrate, and subjecting the diamond body and the tungsten carbide substrate to a high pressure high temperature bonding process to bond the diamond body to the tungsten carbide substrate.

Abstract: A method of forming a polycrystalline diamond body includes mixing a sintering agent with diamond powder to form a premixed layer, the sintering agent including at least one alkaline eat mewl carbonate; forming an infiltration layer adjacent to the premixed layer, the infiltration layer including an infiltrant material including at least one alkaline earth metal carbonate; and subjecting the premixed layer and the infiltration layer to high pressure high temperature conditions.

Abstract: CMP pad dressers having leveled tips and associated methods are provided. In one aspect, for example, a composite conditioner can include a base plate and a plurality of polishing units secured to a surface of the base plate by an adhesive layer, where each polishing unit includes a plurality of polishing tips secured in a binding layer. Additionally, a height difference between a first highest polishing tip and a second highest polishing tip is less than or equal to about 10 ?m, a height difference between the first highest polishing tip and a tenth highest polishing tip is less than or equal to about 20 ?m, and a height difference between the first highest polishing tip and a 100th highest polishing tip is less than or equal to about 40 ?m. Furthermore, the first highest polishing tip protrudes from the binding layer to a height of greater than or equal to about 50 ?m.

Abstract: The present disclosure relates to cutting tools incorporating polycrystalline diamond bodies used for subterranean drilling applications, and more particularly, to a polycrystalline diamond body joined to a substrate by a fastening member to form a cutting element. The polycrystalline diamond body may be binderless polycrystalline diamond, non-metal catalyst polycrystalline diamond, leached polycrystalline diamond, carbonate polycrystalline diamond or polycrystalline cubic boron nitride. The polycrystalline diamond body includes an aperture and a fastening member extending through the aperture and metallurgically bonded to the substrate by a HPHT process.

Abstract: 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.

Abstract: In an embodiment, a polycrystalline diamond compact (“PDC”) includes a substrate and a polycrystalline diamond (“PCD”) table bonded to the substrate. The PCD table includes a first PCD region having bonded-together diamond grains, with the first PCD region exhibiting a first thermal stability and a first diamond density. The PCD table further includes an intermediate second PCD region bonded to the substrate and disposed between the first PCD region and the substrate. The intermediate second PCD region includes bonded-together diamond grains. The intermediate second PCD region exhibits a second thermal stability that is less than that of the first thermal stability of the first PCD region and a second diamond density less than that of the first diamond density of the first PCD region.

Abstract: A method for hardfacing a drill bit includes applying a hardfacing material to a matrix metal forming the substrate of the drill bit. The hardfacing material is applied using a plasma arc welding process. A metallurgical bond is formed between the matrix metal and the hardfacing material. The matrix metal may include tungsten carbide and a braze filler metal.

Abstract: An abrasive article comprising a first group including a plurality of shaped abrasive particles overlying a backing, wherein the plurality of shaped abrasive particles of the first group define a first non-shadowing distribution relative to each other.

Abstract: The present invention relates to a thermally curable liquid resin composition capable of being used in the manufacture of abrasive articles, and to the resulting abrasive articles.

Abstract: 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 multiaxial gradient, or multiple independent gradients.

Abstract: Ultra-hard constructions comprise a sintered diamond-bonded body comprising a matrix of bonded-together diamond grains and a plurality of interstitial regions substantially free of a catalyst material. A metal material comprising a carbide constituent is disposed on a substrate interface surface of the diamond body. A substrate is attached to the diamond-bonded body through a braze joint interposed between the metal material and the substrate. The braze joint is formed from a non-active braze material that reacts with the substrate and metal material. The braze joint is formed at the melting temperature of the non-active braze material in the absence of high-pressure conditions. In an example embodiment, the non-active braze material reacts with the carbide constituent in the metal material. Example materials useful for forming the non-active braze material include those selected from Cu, Ni, Mn, Au, Pd, and combinations and alloys thereof.

Abstract: The purpose of the present invention is to provide a long-lived laminated polishing pad wherein a polishing layer is resistant to detachment from a support layer even when high temperatures are produced by long periods of polishing. This laminated polishing pad is characterized that: a polishing layer and a support layer are laminated together with an adhesive member interposed therebetween; said adhesive member is either an adhesive layer containing a polyester-based hot-melt adhesive or double-sided tape that has one of such adhesive layers on each side of a substrate; and for each 100 weight parts of a polyester-resin base polymer, said polyester-based hot-melt adhesive contains 2 to 10 weight parts of an epoxy resin that has at least two glycidyl groups per molecule.

Abstract: 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.

Abstract: A sheet of sandpaper includes a backing layer having opposed first and second major surfaces, an adhesive make coat on the first major surface, abrasive particles at least partially embedded in the make coat, thereby defining an abrasive surface, and a non-slip coating layer on the second major surface. Methods of making and using such sandpaper are also provided.

Abstract: A method of forming an instrumented cutting element comprises forming a free standing sintered diamond table having at least one chamber in the free standing sintered diamond table, providing a doped diamond material within the at least one chamber, and attaching a substrate to the free standing sintered diamond table to form an instrumented cutting element. The instrumented cutting element includes the doped diamond material disposed within the sintered diamond table on the substrate. A method of forming an earth-boring tool comprises attaching at least one instrumented cutting element to a body of an earth-boring tool. The at least one instrumented cutting element has a diamond table bonded to a substrate. The diamond table has at least one sensing element disposed at least partially within the diamond table. The at least one sensing element comprises a doped diamond material.

Abstract: A cutting element for an earth-boring drill bit may include a thermally stable cutting table comprising a polycrystalline diamond material. The polycrystalline diamond material may consist essentially of a matrix of diamond particles bonded to one another and a silicon, silicon carbide, or silicon and silicon carbide material located within interstitial spaces among interbonded diamond particles of the matrix of diamond particles. The cutting table may be at least substantially free of Group VIII metal or alloy catalyst material. The cutting element may further include a substrate and an adhesion material between and bonded to the cutting table and the substrate. The adhesion material may include diamond particles bonded to one another and to the cutting table and the substrate after formation of the preformed cutting table.

Abstract: A flexible abrasive finishing article including a backing of fabric or paper having first and second major surfaces with abrasive particles adhesively secured to said first major surface and a layer of cyanoacrylate based material substantially covering the second major surface. The method of making a flexible abrasive finishing material including the steps of applying a layer of cyanoacrylate based material to a surface of a backing material opposite the surface to which abrasive particles are adhesively secured and covering said cyanoacrylate material.

Abstract: Disclosed is a method of manufacturing an endmill tool, including detecting a crystal direction of a selected natural diamond gemstone by inspecting the structure of the diamond gemstone, forming a lower base surface and an upper reference surface of the diamond gemstone by using abrading equipment after welding the diamond gemstone with a first sub-body, grinding an edge portion of the diamond gemstone by using grinding equipment after welding a machining tip, which is separated from the first sub-body, with a second sub-body to complete the machining tip having a cutting blade, and temporarily installing the machining tip, which is separated from the second sub-body, in a super hard body installed in setting equipment, adjusting an alignment state of the machining tip, and bonding the machining tip with the super hard body by using a normal-temperature bonding agent through a normal-temperature coagulation scheme to complete the endmill tool.

Abstract: A polishing pad is described that has a polishing layer with a polishing surface, an adhesive layer on a side of the polishing layer opposite the polishing layer, and a solid light-transmitting window extending through and molded to the polishing layer. The window has a top surface coplanar with the polishing surface and a bottom surface coplanar with a lower surface of the adhesive layer. A method of making a polishing pad includes forming an aperture through a polishing layer and an adhesive layer, securing a backing piece to the adhesive layer on a side opposite a polishing surface of the polishing layer, dispensing a liquid polymer into the aperture, and curing the liquid polymer to form a window.

Abstract: The disclosure provides a super-abrasive body including a thermally stable polycrystalline diamond (TSP) body having a top region and an enhanced attachment region, wherein the enhanced attachment region includes tungsten carbide particles having a volume of at least 30% of the total volume of the enhanced attachment region. The disclosure further provides a super-abrasive element having the super-abrasive body attached to a substrate via an attachment material located in or around the tungsten carbide particles. The disclosure additionally provides earth-boring drill bits with such a super-abrasive element. Further, the disclosure provides methods of forming such super-abrasive bodies and elements by forming a PCD body with particle of tungsten carbide in an enhanced attachment region, then leaching the PCD body and attaching it to a substrate via an attachment material in or around the tungsten carbide particles.

Abstract: A CMP pad conditioner comprises a plurality of abrasive segments. Each abrasive segment includes a segment blank and an abrasive layer attached to the segment blank, the abrasive layer including a superhard abrasive material. A pad conditioner substrate is also provided. Each of the plurality of abrasive segments is permanently affixed to the pad conditioner substrate in an orientation that enables removal of material from a CMP pad by the abrasive layer as the pad conditioner and the CMP pad are moved relative to one another.

Abstract: A method for forming a thermally stable cutting element that includes forming at least one acid infusion pathway in a polycrystalline abrasive body containing a catalyzing material to be leached; and contacting at least a portion of the at least one acid infusion pathway in the polycrystalline abrasive body with a leaching agent is disclosed.

Abstract: An abrasive disc includes a backing layer on a first major surface, a water-impermeable abrasive layer on a second major surface, and a water-absorbable, compressible, resilient, porous foam layer sandwiched in between the backing layer and the abrasive layer. The disc further includes a plurality of perforations. The disc is used to abrade a surface. Fluid is absorbed into the abrasive disc. The fluid is then released to the surface by compressing the abrasive disc against the surface in an abrading motion. The fluid is allowed to mix with and absorb surface swarf; and compression on the abrasive disc is released, reabsorbing the fluid and trapping swarf inside the disc.

Abstract: 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.

Abstract: Cutting elements have substrates including end surfaces. TSP material layers extend over only a portion of the end surfaces or extend into the substrates below the end surfaces. Bits incorporate such cutting elements.

Abstract: 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.

Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) that are less susceptible to liquid metal embrittlement damage due to the use of at least one transition layer between a polycrystalline diamond (“PCD”) layer and a substrate. In an embodiment, a PDC includes a PCD layer, a cemented carbide substrate, and at least one transition layer bonded to the substrate and the PCD layer. The at least one transition layer is formulated with a coefficient of thermal expansion (“CTE”) that is less than a CTE of the substrate and greater than a CTE of the PCD layer. At least a portion of the PCD layer includes diamond grains defining interstitial regions and a metal-solvent catalyst occupying at least a portion of the interstitial regions. The diamond grains and the catalyst collectively exhibit a coercivity of about 115 Oersteds or more and a specific magnetic saturation of about 15 Gauss·cm3/grams or less.

Abstract: 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.

Abstract: To provide a process for producing a phosphorescent body which allows efficient production of a granule-shaped phosphorescent body with a simple facility and a phosphorescent body produced by the process, and a nail stone including the phosphorescent body. In a process for producing a phosphorescent body containing at least a phosphorescent material and a glass material, at least the phosphorescent material and the glass material are mixed to give a paste mixture 2. A plurality of layers of the mixture 2 are stacked to form a granule-shaped laminate 3. The laminate 3 is sintered so that the laminate 3 is melted and shaped by the action of the surface tension of the melted laminate 3.

Abstract: A coated abrasive article includes a backing and fused alumina-zirconia abrasive grains attached to the backing with a binder. The fused alumina-zirconia abrasive grains include between about 35 wt % and about 45.5 wt % ZrO2+HfO2, between about 43.7 wt % and about 65 wt % Al2O3, less than about 0.8 wt % SiO2 and less than about 10 wt % other oxides. The fused alumina-zirconia abrasive grains simultaneously satisfy both a granulometric and densimetric condition.

Abstract: The present invention relates to a two-component urethane resin composition for a polishing pad including a base resin containing an isocyanate group-terminated urethane prepolymer (A) and a curing agent containing an isocyanate group reactive compound (B), and characterized in that the prepolymer (A) is a prepolymer having an isocyanate group equivalent of 250 to 700 and being produced by reacting a polyisocyanate (a1) with an aromatic polyester polyol (a2) and a polyether polyol (a3) which are used as polyol components in combination at a mass ratio of (a2)/(a3)=5/95 to 70/30, and the aromatic polyester polyol (a2) has 2 to 11 aromatic rings in its molecular chain, and also relates to a polyurethane polishing pad using the resin composition and a method for producing a polyurethane polishing pad.

Abstract: Matrix drill bits and other downhole tools may be formed with one or more layers of hard materials disposed on exterior portions thereof. Exterior portions of used rotary drill bits or other downhole tools may be measured using three dimensional (3D) scanning techniques or other techniques to determine specific locations of undesired abrasion, erosion and/or wear. During the design of a new rotary drill bit or other downhole tool, computational flow analysis techniques may be used to determine potential locations for excessive erosions, abrasion, wear, impact and/or fatigue on exterior portions of the rotary drill bit or other downhole tools. One or more layers of hard material may be disposed at such locations on exterior portions of matrix bit bodies and other matrix bodies based on analyzing exterior portions of used downhole tools and/or computational flow analysis.

Abstract: The invention relates to a liquid resin composition intended for manufacturing abrasives that comprises at least one novolac resin having a glass transition temperature less than or equal to 60° C., at least one reactive diluent and optionally at least one crosslinking agent. Application of the resin composition for producing abrasive articles, especially bonded abrasives and coated abrasives. It also relates to the abrasive articles comprising abrasive grains connected by such a liquid resin composition.

Abstract: A segmented profiled wheel for grinding a glass or non-metallic workpiece including a segmented abrasive portion formed of a plurality of abrasive segments that are attached to a core of the wheel and method for making same. The plurality of abrasive segments have a cutting surface profile and sufficient abrasive grit to contour and grind the workpiece. Terminal ends of the plurality of abrasive segments are adjacent to one another and the cutting surface profiles align to form a substantially continuous rim of profiled abrasive segments for substantially continuous contact with a workpiece while the wheel rotates. The method includes the steps of forming the plurality of abrasive segments having a metal bonding matrix using automated processes, machining a metal blank to form a core, and attaching the plurality of abrasive segments to the core by laser welding and/or brazing.