Abstract: A tungsten carbide material for use in precision glass molding applications having 6.06-6.13 wt. % carbon, 0.20-0.55 wt. % grain growth inhibitor, less than 0.25 wt. % binder, less than 0.6% wt. % impurities, and balance being tungsten. The tungsten carbide material has a nominal grain size of less than 0.5 microns.

Abstract: Additions of substitutional transition metal elements are made to improve the densifiability of titanium diboride while eliminating or minimizing the presence of deleterious grain boundary phases in the resultant bulk titanium diboride articles.

Abstract: A wear-resistant cladding layer for cutting tool components. A cutting tool includes a tool holder and a clamp structured and arranged for releasably securing an insert to the tool holder. The cutting tool also includes a wear-resistant cladding layer brazed on at least a portion of the clamp and/or brazed on at least a portion of the tool holder, wherein the wear- resistant cladding layer comprises hard particles and a brazing material.

Abstract: A coated body that includes a substrate and a coating scheme on the substrate. The coating scheme includes a CVD titanium carbonitride coating layer containing titanium carbonitride grains that are of a pre-selected grain size. The coating scheme further includes a first titanium/aluminum-containing coating layer containing first titanium/aluminum-containing grains applied so as to be farther away from the substrate than the titanium carbonitride coating layer. The first titanium/aluminum-containing grains are of a pre-selected grain size. The coating scheme also includes a CVD alumina coating layer containing alumina grains applied so as to be farther away from the substrate than the first titanium/aluminum-containing coating layer. The alumina grains are of a pre-selected grain size.

Abstract: A coated cutting insert for use in a chip-forming material removal operation wherein the coated cutting insert includes a substrate that has a flank surface and a rake surface and the flank surface intersects the rake surface to form a cutting edge at the intersection. There is a wear-resistant coating scheme that adheres to at least a portion of the substrate. The wear-resistant coating scheme includes one or more coating layers of one or more of alumina, hafnia and zirconia. There is a wear indicating coating that adheres to at least a portion of the wear-resistant coating scheme. The wear indicating coating includes M(OxCyNz) wherein M is selected from the group comprising one or more of the following titanium, hafnium, zirconium, chromium, titanium-aluminum alloy, hafnium-aluminum alloy, zirconium-aluminum alloy, chromium-aluminum alloy, and their alloys, and x>0, y?0, z?0 and y+z>0.

Abstract: A wear component for use in an impact crusher having a forward depression on the face of the wear component which is exposed to aggregate wear. Wear resistant inserts, for example cemented tungsten carbide inserts, are bonded within the forward depression to prevent rapid abrasion of the wear component. Joints are formed between wear resistant inserts and joints are also formed between wear resistant inserts and the wear component. Bonding material fills the joints to further secure the wear resistant inserts and to prevent crack propagation.

Abstract: Subterranean drill bits having good erosion resistance, strength, toughness, and thermal stability are disclosed. The drill bits comprise a bit body carrying at least one cutting element and having an infiltrated metal matrix. The infiltrated metal matrix comprises a matrix powder composition bound together by an infiltrant. The matrix powder mixture includes cast tungsten carbide powder having a particle size of ?30 (600 micron) +140 mesh (106 micron), a second component powder consisting of one or more other types of tungsten carbide particles, and a metal powder.

Abstract: The invention relates to a method for producing a coated substrate body by chemical vapor deposition at least on one layer made of a carbonitride of a metal of IVa-Vla-groups of the periodic table, wherein a monocyclic hydrocarbon is used in the gas atmosphere during the deposition, in addition to a nitrile. According to the invention, the thus produced coated substrate body has a high degree of hardness and is used, preferably, in cutting operations where the cutting speeds are ?250 m/min.

Abstract: An article, as well as the process of producing the article, wherein the article is produced by a process that includes the steps of providing a substrate; applying a viscous coating that contains a ferromagnetic or paramagnetic component to at least a selected portion of the substrate; causing the selected portion of the substrate to be under the influence of a magnetic field; and transforming the viscous coating so as to form a wear-resistant coating on the substrate.

Abstract: An uncoated cutting tool that comprises a body containing a pocket. A polycrystalline cubic boron nitride blank has a cutting tip. The blank is brazed into the pocket using a braze alloy whereby there is a braze joint between the body and the polycrystalline cubic boron nitride blank. The braze alloy has a liquidus temperature of at least about 900 degrees Centigrade wherein the braze alloy is selected from the group comprising a nickel-gold braze alloy containing nickel and gold, a copper-gold braze alloy containing copper and gold, a silver-titanium braze alloy containing silver and titanium, and a silver-palladium braze alloy containing silver and palladium.

Abstract: A coated article that includes a substrate and a wear-resistant coating scheme. The coated article may be a cutting insert shown to improve performance in chip-forming material removal operations or a wear-resistant component used in chipless forming operations. The wear-resistant coating scheme has an underlayer and top layer containing aluminum, chromium, and nitrogen. The coating scheme also includes a mediate multi-periodicity nanolayer coating scheme containing titanium, aluminum, chromium and nitrogen. The mediate multi-periodicity nanolayer coating scheme includes a plurality of sets of alternating layer arrangements. Each one of the alternating layer arrangements has a base layer comprising titanium, aluminum and nitrogen and a nanolayer region having a plurality of sets of alternating nanolayers. Each set of alternating nanolayers has one nanolayer having aluminum, chromium, titanium and nitrogen and another nanolayer having aluminum, chromium, titanium and nitrogen.

Abstract: A cutting tool includes a body having a forward end and a rearward end. The forward end includes an insert-receiving pocket. The body further includes a coolant delivery system comprising a main coolant passage having a main coolant inlet extending from the rearward end toward the forward end, a primary coolant passage in fluid communication with the main coolant passage and having a primary coolant outlet exiting from the insert-receiving pocket, and a secondary coolant passage in fluid communication with the primary coolant passage and having a secondary coolant outlet exiting into the insert-receiving pocket. The primary coolant outlet intersects the secondary coolant outlet to form an outlet having a substantially non-circular shape. As a result, the coolant fluid exiting the outlet is in a fan-like pattern and is evenly distributed over the cutting edge of the insert.

Abstract: A wear component for use in an impact crusher having a forward depression on the face of the wear component which is exposed to aggregate wear. Wear resistant inserts, for example cemented tungsten carbide inserts, are bonded within the forward depression to prevent rapid abrasion of the wear component. Joints are formed between wear resistant inserts and joints are also formed between wear resistant inserts and the wear component. Bonding material fills the joints to further secure the wear resistant inserts and to prevent crack propagation.

Abstract: A cutting tool is in the form of a holder and a cutting insert that is quickly and easily indexable in one of a plurality of precision cutting positions within the holder. The holder has a bore therein and a stop in the bore. The cutting insert has a shank portion that is insertable into the bore. The cutting insert, when inserted into bore, mates with the stop to locate the cutting insert in one of a plurality of positions. Alternatively, the stop can be supported by the cutting insert and mate with the holder.

Abstract: A rotary cutting tool that is composed of a tool shank with at least one chucking groove or chip flute and one exchangeable cutting insert. At the tip of the shank a recess for accommodating the cutting insert is provided. The tool shank, on its circumference, has a limb with a bearing surface that is inclined relative to the tool axis and that corresponds to a likewise inclined bearing surface on a wing of the cutting insert. The inclination of the bearing surfaces produces an axial force that retains the cutting insert on the tool shank. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.

Abstract: A coated body that includes a substrate and a coating scheme on the substrate. The coating scheme on the substrate wherein the coating scheme includes an alpha-alumina coating layer that exhibits a platelet grain morphology at the surface of the alpha-alumina coating layer or a kappa-alumina coating layer that exhibits either a lenticular grain morphology or a polyhedra-lenticular grain morphology at the surface thereof or an alpha-kappa-alumina coating layer that exhibits either a large multifaceted grain morphology or a polyhedra-multifaceted grain morphology at the surface thereof.

Abstract: A cutting insert comprises an elliptical cutting edge. The cutting insert has a mounting hole through which a retention screw may pass, wherein the retention screw makes contact with the mounting hole in a seating plane that is perpendicular to the mounting hole. The cutting insert is adapted for use in a cutting tool comprising a tool body having a pocket partially defined by a floor that is parallel to a seating plane. The insert can have a shape complimentary to a tool body so as to cooperate with the tool body to form a continuous flute. According to one embodiment of the invention, the insert has a flank edge inboard with respect to the tool body. An insert according to another embodiment of the invention has a rake face with a positive cutting geometry.

Abstract: An insert retention screw having a head with a radius that is sufficient size to fit within a mounting hole of a cutting insert and seat within a seating plane within the mounting hole that is generally perpendicular to the axis of the insert when the screw is at an angle of about 0-15 degrees is disclosed. The retention screw provided for holding a cutting insert in the pocket of a tool body. The pocket is partially defined by a floor and a seating surface. A threaded hole is at an angle that is taken with reference to the pocket floor. The insert has a mounting hole passing therethrough. The retention screw passed through the mounting hole and threads into the threaded hole so as to draw the insert against the seating surface.

Abstract: A coated cutting tool that comprises a body containing a pocket. The tool further includes a polycrystalline cubic boron nitride blank that is brazed into the pocket using a braze alloy. The braze alloy has a liquidus temperature of at least about 900 degrees Centigrade. There is a coating applied to the cutting tool.

Abstract: An uncoated cutting tool that comprises a body containing a pocket. A polycrystalline cubic boron nitride blank has a cutting tip. The blank is brazed into the pocket using a braze alloy whereby there is a braze joint between the body and the polycrystalline cubic boron nitride blank. The braze alloy has a liquidus temperature of at least about 900 degrees Centigrade wherein the braze alloy is selected from the group comprising a nickel-gold braze alloy containing nickel and gold, a copper-gold braze alloy containing copper and gold, a silver-titanium braze alloy containing silver and titanium, and a silver-palladium braze alloy containing silver and palladium.