Abstract: Methods for replacing an impingement site of a shot sleeve with an erosion resistant material, for manufacturing a shot sleeve for high pressure die casting of Aluminum Silicon alloys having an erosion resistant material at an impingement site, and for manufacturing a shot sleeve for high pressure die casting of aluminum silicon alloys containing 0.40% max Fe, having an erosion resistant material at an impingement site are disclosed. The shot sleeve assembly includes a shot sleeve including a pouring hole and a, impingement site. In certain embodiments a bushing assembly is implemented. The impingement site or bushing assembly includes a refractory metal tube constructed of erosion resistant material.

Abstract: Methods for replacing an impingement site of a shot sleeve with an erosion resistant material, for manufacturing a shot sleeve for high pressure die casting of Aluminum Silicon alloys having an erosion resistant material at an impingement site, and for manufacturing a shot sleeve for high pressure die casting of aluminum silicon alloys containing 0.40% max Fe, having an erosion resistant material at an impingement site are disclosed. The shot sleeve assembly includes a shot sleeve including a pouring hole and a, impingement site. In certain embodiments a bushing assembly is implemented. The impingement site or bushing assembly includes a refractory metal tube constructed of erosion resistant material.

Abstract: A ceramic matrix composite component and a ceramic insert, and a method for producing the same. The ceramic matrix composite component may include an exterior surface comprising silicon fibers in a silicon carbide matrix. The insert may include a continuous porosity bonded to the exterior surface of the ceramic matrix composite component. The silicon carbide matrix of the ceramic matrix composite component may extend into the porosity of the ceramic insert to bond the ceramic insert to the ceramic matrix composite component.

Abstract: A substrate support assembly comprises a ceramic puck comprising a substrate receiving surface, and having embedded therein: (i) an electrode to generate an electrostatic force to retain a substrate placed on the substrate receiving surface; and (ii) a heater to heat the substrate, the heater comprising a plurality of spaced apart heater coils. A compliant layer bonds the ceramic puck to a base, the compliant layer comprising a silicon material. The base comprises a channel to circulate fluid therethrough, the channel having a channel inlet and a channel terminus.

Abstract: A brake caliper adapted for use in a vehicle disc brake assembly and method and apparatus for producing the same. The apparatus for producing the brake caliper comprises a mold member and a core member. The mold member has two mold sections meeting at a vertical interface, the first mold section having an extension from the vertical interface into the second mold section to form an integrally cast lug on the brake caliper. The core member has three extensions operative to form three integrally cast locating surfaces on the cast brake caliper, the extensions defining datum surfaces for subsequent machining of the cast brake caliper to predetermined tolerances using the three locating surfaces as the datum surfaces.

Abstract: A metal matrix composite article that includes at least first and second regions, first and second reinforcement materials, a metal matrix composite material occupying the second region of the body and comprising a metal matrix material and the second reinforcement component, a preform positioned in the first region of the body and infiltrated by at least the metal matrix material of the metal matrix composite material. The article further includes a transition region located proximate an outer surface of the preform that includes a distribution of the second reinforcement component comprising a density increasing according to a second gradient in a direction toward the outer surface of the preform.

Abstract: An organic release agent is vacuum deposited over a substrate and surface treated with a plasma or ion-beam source in a gas rich in oxygen-based functional groups to harden a very thin layer of the surface of the deposited layer in passivating environment. Aluminum is subsequently vacuum deposited onto the hardened release layer to form a very flat and specular thin film. The film is exposed to a plasma gas containing oxygen or nitrogen to passivate its surface. The resulting product is separated from the substrate, crushed to break up the film into aluminum flakes, and mixed in a solvent to separate the still extractable release layer from the aluminum flakes. The surface treatment of the release layer greatly reduces wrinkles in the flakes, improving the optical characteristics of the flakes. The passivation of the flake material virtually eliminates subsequent corrosion from exposure to moisture.

Abstract: A bearing component including a body of composite material having a surface configured as a bearing surface, the composite material including a plurality of round particles bound by a braze material, each of the plurality of round particles comprising a round outer layer encapsulating a wear resistant element.

Abstract: A method of forming an earth-boring tool includes introducing metal into a die, rotating the die to generate centrifugal forces on the metal, and cooling the metal in the rotating die. A rotary drill bit may include a unitary, centrifugally cast bit body including an integral shank, at least one blade, and at least one cutting element on the blade. A rotary drill bit or a roller cone may include a first centrifugally cast material and a second centrifugally cast material. Another rotary drill bit includes a bit body comprising a maraging steel alloy. A method of forming a rotary drill bit may include disposing cutting elements on a rotary drill bit comprising maraging steel and aging the rotary drill bit to form at least one intermetallic precipitate phase. Methods of repairing a rotary drill bit include annealing and aging at least a portion of a rotary drill bit.

Abstract: A process for producing a rotationally symmetrical cast aluminum component by die casting, which is reworked partially on its inner and/or outer lateral surfaces. At least a part of the lateral surfaces is not treated and is used as a non-positively locking bearing surface for installation in an assembly and also for bracing the component.

Abstract: A method of manufacturing a component in a die casting cell that includes a die casting system according to an exemplary aspect of the present disclosure includes, among other things, isolating a first chamber from a second chamber of the die casting system, melting a charge of material in the first chamber, sealing the second chamber relative to the first chamber, and simultaneously injecting the charge of material within the second chamber to cast the component and melting a second charge of material within the first chamber.

Abstract: Decorative shape cast products and methods, systems, compositions and apparatus for producing the same are described. In one embodiment, the decorative shape cast products are produced from an Al—Ni or Al—Ni—Mn alloy, with a tailored microstructure to facilitate production of anodized decorative shape cast product having the appropriate finish and mechanical properties.

Abstract: A method of building or repair of a hollow superalloy component (20, 61) by forming an opening (38, 62) in a wall (28) of the component; filling a cavity (22B, 64) behind the opening with a fugitive support material (34, 52, 54, 68) to support a filler powder (36) across the opening; traversing an energy beam (42) across the filler powder to form a deposit (44) that spans and closes the opening; in which the deposit is fused to the edges (32, 62) of the opening. The filler powder includes at least metal, and may further include flux. The support material may include filler powder, a solid (54), a foam (52) insert, a flux powder (34) and/or other ceramic powder (68). Supporting powder may have a mesh size smaller than that of the filler powder.

Abstract: A method of manufacturing a golf club head can include: creating a mold of the golf club head; forming two or more portions of a model of the golf club head using the mold, each of the two or more portions of the model include a part of a body of the golf club head and at least one first alignment mechanism; assembling the model of the golf club head using the at least one first alignment mechanism of each of the two or more portions of the model to align the two or more portions of the model, the model comprises the body of the golf club head and a joined alignment mechanism, the joint alignment mechanism comprises the at least one first alignment mechanism of each of the two or more portions of the model; using the model of the golf club head to create a cast for the golf club head; removing the model of the golf club head from the cast; and using the cast of the golf club head to create the golf club head with the joined alignment mechanism; and removing the joined alignment mechanism from the golf club he

Abstract: A negative active material, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes a silicon-based alloy including Si, Al, and Fe. The silicon-based alloy includes an active phase of silicon nanoparticles and an inactive phase of Si3Al3Fe2 and Si2Fe in a ratios suitable to improve the lifespan of the lithium battery.

Abstract: Embodiments of the present invention provide methods for manufacturing an even-wall rotor or stator that do not suffer from drawbacks of the prior art. Even-wall rotors or stators produced according to those methods are also provided. In one embodiment, a method for manufacturing a rotor or stator for use in a mud motor is provided. The method includes providing a vacuum chamber; providing a metal electrode at least partially disposed in the vacuum chamber; providing a mold disposed in the vacuum chamber; and melting a portion of the electrode with a direct current arc, the molten metal flowing into the mold ring.

Abstract: A damper for a gas turbine engine is provided. The damper comprises a first portion, a second portion, and a surface. The second portion angularly extends from the first portion to define an interior corner therebetween. The surface bounds the first portion, the second portion, and the interior corner. The damper further comprises a grain composition containing columnar grains and equiaxed grains. The equiaxed grains are disposed adjacent to the surface such that a volume of the columnar grains is less than a volume of the equiaxed grains in the grain composition.

Abstract: A casting system for molding metal. The casting system has a mold comprising a cavity in a predefined shape. A riser in flow communication with the mold wherein the riser provides molten metal to said cavity as the molten metal freezes. A riser breaker insert is between the mold and the riser wherein the riser breaker insert comprises voids. A molten metal supply is provided which is capable of filling the mold and the voids of said riser breaker insert and at least partially filling the riser.

Abstract: A fork for a clutch and a manufacturing method thereof are provided. The fork for a clutch may include C: 3.4˜3.9%, Si: 2.1˜2.5%, Mn: 0.2˜0.7%, P: 0.01% or less, S: 0.009˜0.02%, Cu: 0.2˜0.4%, and Mg: 0.04˜0.07% by weight ratio, with the remainder including iron (Fe) and other impurities. The material forming the fork for the clutch may have a structure in which spheroidal graphite is precipitated in an austenite matrix structure.

Abstract: A cam ring of a vane pump and a method of manufacturing a cam ring are provided. The cam ring may be formed of a material including approximately 3.0% to 3.5% of carbon (C), approximately 2.0% to 2.5% of silicon (Si), approximately 0.5% to 1.0% of manganese (Mn), approximately 0.5% to 1.0% of chromium (Cr), approximately 0.2% to 0.5% of copper (Cu), approximately 0.1% to 0.3% of phosphor (P), approximately 0.02% to 0.06% of boron (B), approximately 0.06% to 0.1% of sulfur (S), and approximately 0.043% or more of titanium (Ti) by weight ratio, and iron (Fe) and any inevitable impurity for the remainder, and may have a tempered martensite matrix including a carbide.

Abstract: A method for fabricating a stator including positioning a cutting device, with a diameter equal to a desired pocket diameter, with respect to pockets in a side of a housing. Each pocket has an end wall with an indentation. The method axially displaces the device to remove material from side and end walls for the pockets to form desired diameters and lengths for the pockets, while leaving a portion of the respective indentation in place. The housing includes a plurality of blades. Each pocket is arranged to receive an engagement assembly for a one-way clutch. Each pocket includes a first opening facing in a second axial direction and a second opening in communication with the first opening and at least partially facing in a circumferential direction. The first side faces the second axial direction and the side walls are in communication with the first and second openings.

Abstract: A sputtering target comprises an alloy of scandium and aluminum, wherein the alloy has a concentration of 3-10 at % scandium and 90-97 at % aluminum. The sputtering target can be used to produce a piezoelectric layer for an apparatus such as an acoustic resonator.

Abstract: Nanoscale grating structure can be utilized in many practical applications in optics, flat-panel displays and bio-sensors. A Dynamic Nano-Inscribing (Dynamic Nano-Inscribing) technique is disclosed for directly creating large-area, truly continuous nano-grating patterns in a variety of metal or polymer materials with feature size down to sub-50 nm and at very high speed (10 cm/sec). Dynamic Nano-Inscribing is carried out under either ambient temperature or with a brief heating time on the order of ten microseconds, which minimizes damage on UV or thermo-sensitive functional materials.

Abstract: A disc brake rotor has a support hub and coaxial braking band. The support hub has a plurality of radial seats and the braking band has a plurality of connecting elements which transfer torque between the band and the hub. The connecting elements are integral and made as one piece with the braking band and extend from the braking band in order to engage the corresponding radial seats. The connecting elements are surrounded by walls which are integral and made as one piece with the support hub such as to be fastened in the axial direction and in the tangential direction, but capable of sliding in the radial direction.

Abstract: In a method for producing a brake carrier for a disc brake of a vehicle braking system, wherein the brake carrier has at least one guiding shaft for guiding a brake lining in a guiding direction in relation to a receiving region for a brake disc, first a brake carrier blank is produced in a casting step and then the brake carrier blank is reworked. In the casting step, the brake carrier blank forms two converging tapers, facing the receiving region, in the region in which the guiding shaft is formed and, during the reworking, material is removed in the region of the tapers to produce the at least one guiding shaft, with the effect that the receiving region for the brake disc has a predetermined clear width transversely in relation to the guiding direction.

Abstract: A vanadium-based hydrogen permeation alloy for a membrane, a method of manufacturing the same, and a method of using a membrane including the same are provided. The vanadium-based hydrogen permeation alloy for a membrane includes nickel (Ni) at more than 0 atm % and 5 atm % or less, iron (Fe) at 5 atm % to 15 atm %, yttrium (Y) at more than 0 atm % and 1 atm % or less, and a remainder of vanadium and impurities.

Abstract: The process includes: definition of the final hollow part in its internal portion after forging with deformation of solid or thinned-down sections; modelling of the solid or thinned-down sections; formation of the thinned-down sections by recyclable single-material cores positioned at places requiring zones with a thinned-down section, and modelling of the cores; after modelling, definition of the semi-finished product and of the cores in their initial forms having a different configuration from the forged cores; after casting of metal around the cores, in the prior initial form, striking of the semi-finished product with its cores resulting in the part and its cores being deformed from their initial shapes to their final shapes; fettling of the burrs; and removal of the cores.

Abstract: A method for making an arrangement consisting of a cast part and a cast-in component composed of a metallic material. The cast-in component is composed of a metallic material that has a galvanically applied nickel layer. The layer is applied by positioning the cast-in component in an electrolyte bath and applying the coating on at least part of the surface of the component. The cast-in component is then positioned in a casting mold and a cast part is casted around the cast-in part.

Abstract: A packaging substrate includes a first dielectric layer; a plurality of first conductive pads embedded in and exposed from a first surface of the first dielectric layer; a first circuit layer embedded in and exposed from a second surface of the first dielectric layer; a plurality of first metal bumps disposed in the first dielectric layer, each of the first metal bumps having a first end embedded in the first circuit layer and a second end opposing the first end and disposed on one of the first conductive pads, a conductive seedlayer being disposed between the first circuit layer and the first dielectric layer and between the first circuit layer and the first metal bump; a built-up structure disposed on the first circuit layer and the first dielectric layer; and a plurality of second conductive pads disposed on the built-up structure. The packaging substrate has an over-warpage problem improved.

Abstract: A casting, mold and method for producing a casting are disclosed. The casting may have an area of small thermal mass and an area of large thermal mass. The method may comprise providing a casting having a work product and an appendage engaged to, and suspended over, the work product between the area of small thermal mass and the area of large thermal mass, and controllably cooling the work product using the appendage.

Abstract: A method of machining a component is provided. The component includes a substrate having an outer surface and an inner surface, where the inner surface defines at least one interior space. A core is disposed within each interior space. The method includes forming at least one hole in the substrate while the core is disposed within the respective interior space. Each hole extends through the substrate to provide fluid communication with the respective interior space. The method further includes removing the core from the respective interior space. The core may be a casting core or a subsequently formed core.

Abstract: An iron-based corrosion resistant and wear resistant alloy includes (in weight percentage) carbon from about 1.6 to 3%, silicon from about 0.8 to 2.1%, manganese up to 1.0%, chromium from about 12.0 to 15.0%, molybdenum from about 2.0 to 4.0%, nickel from about 0.2 to 0.8%, copper up to 4.0%, boron up to 0.5%, and the balance including iron and incidental impurities. The alloy is suitable for use in elevated temperature applications such as in valve seat inserts for combustion engines.

Abstract: A metal/ceramic bonding substrate includes: a ceramic substrate; a metal plate bonded directly to one side of the ceramic substrate; a metal base plate bonded directly to the other side of the ceramic substrate; and a reinforcing member having a higher strength than that of the metal base plate, the reinforcing member being arranged so as to extend from one of both end faces of the metal base plate to the other end face thereof without interrupting that the metal base plate extends between a bonded surface of the metal base plate to the ceramic substrate and the opposite surface thereof.

Abstract: Disclosed is a brazing alloy composition. The composition comprises, by weight, about 94% copper, about 4% zinc, and about 2% iron. Further disclosed is a brazing process utilizing the brazing alloy, a method for the brazing alloy's preparation and a work piece having members joined by the brazing alloy providing stronger bonding as demonstrated by braze joints having increased shear strength.

Abstract: A three-dimensionally shaped body module component and a method for the production thereof, which is assembled from a plurality of body module segments (1). The body module segments (1) are sections of continuously pultruded fibre plastic composite pultrudates, wherein each pultrudate has a basic structure consisting of endless fibres (20) laid in accordance with the force flux with respect to a predetermined geometry of the component. Furthermore, the basic structure has at least one passage (30) per body module segment (1) for receiving a connecting means (11), so as to connect at least two of the body module segments (1). The fibres (20) laid in accordance with the force flux are laid around the passage (30), and, furthermore, a stabilisation structure (40) made from fibres is arranged around it.

Abstract: Provided in one embodiment is a method of making use of foams as a processing aid or to improve the properties of bulk-solidifying amorphous alloy materials. Other embodiments include the bulk-solidifying amorphous alloy/foam composite materials made in accordance with the methods.

Abstract: A method of processing a casting is described. The method comprises removing a mold from a cast metal part without cold working surfaces of the cast metal part and thermally treating the cast metal part. The method can further comprise finishing the surfaces of the cast metal part after thermally treating such that any cold working of the surfaces of the cast metal part occurs after thermally treating such that no recast layer is formed in the cast metal part.

Abstract: Provided in one embodiment is a method of forming a connection mechanism in or on a bulk-solidifying amorphous alloy by casting in or on, or forming with the bulk-solidifying amorphous alloy, a machinable metal. The connection mechanism can be formed by machining the machinable metal.

Abstract: A mold includes a first groove part and a second groove part. The first groove part extends with a constant length or a constant width from a center part to an outer circumferential part of the mold. The second groove part extends from a terminal end of the first groove part on an outer circumferential part side of the first groove and merges with any portion of the first groove part. A molding manufacturing method includes manufacturing a preform by semimolten die casting or semisolid die casting using the mold. The method may also include removing a portion of the preform corresponding to the second groove part.

Abstract: Method for manufacturing a gas burner of the type comprising a cup, provided with at least one tubular tapered part of a mixer with axial Venturi effect, and shaped to couple with a burner head provided with at least one flame-spreader, wherein said cup is made in a single piece by casting or die-casting in an apposite mould.

Abstract: Described herein is a feedstock comprising BMG. The feedstock has a surface with an average roughness of at least 200 microns. Also described herein is a feedstock comprising BMG. The feedstock, when supported on a support during a melting process of the feedstock, has a contact area between the feedstock and the support up to 50% of a total area of the support. These feedstocks can be made by molding ingots of BMG into a mole with surface patterns, enclosing one or more cores into a sheath with a roughened surface, chemical etching, laser ablating, machining, grinding, sandblasting, or shot peening. The feedstocks can be used as starting materials in an injection molding process.

Abstract: A method for producing a coated structural element for exterior applications in the door and gate industry, such as for a sectional gate panel, an overhead door, a door, or a structural element for a facade with an integrated gate and/or integrated door, in which a relative movement between a starting material designed for producing the structural element and a coating device is generated along a feed direction, and to a coating mass that is applied to the starting material by the coating device along a coating direction that runs transverse to the feed direction and preferably approximately perpendicular to the surface to be coated.

Abstract: An automotive disk brake assembly installed in an automobile having a wheel. The assembly includes a floating caliper supporting an inner and outer brake pad and a brake rotor having a disk, and a hat, and wherein the hat is bolted to the wheel. A hydraulic cylinder is adapted to push the inner brake pads into the disk surface, causing the floating caliper to move bringing the outer brake pad into contact with the disk. Finally, the rotor is made such that a complete 100 kilometer per hour, 0.9 gross vehicle weight braking causes the disk to expand in thickness by at least 0.15 mm and to cool to shrink in thickness, relative to its expanded thickness, by at least 0.1 mm within 60 seconds of the cessation of braking, in an ambient temperature of less than 30° C.

Abstract: An automotive disk brake assembly installed in an automobile having a wheel. The assembly includes a floating caliper supporting inner and outer brake pads and a brake rotor having a disk, a hat, wherein the hat is bolted to the wheel. A hydraulic cylinder pushes the inner brake pads into the disk surface, thereby causing the floating caliper to move so as to bring the outer brake pad into contact with the disk surfaces. Finally, the rotor is made of a material having a thickness and a coefficient of thermal expansion and conductivity, such that a complete 100 kilometer per hour, 0.9 gross vehicle weight braking causes the disk to expand in thickness by at least 0.10 mm and to cool to shrink in thickness, from its expanded thickness, by at least 0.05 mm within 60 seconds of cessation of braking, in an ambient temperature of less than 30° C.

Abstract: An impeller for a torque converter includes a rotating housing portion, a blade portion configured to create fluid flow for pumping fluid to a turbine of the torque converter, and an impeller hub portion configured to couple the impeller to the torque converter and rotate about an output shaft of the torque converter. The impeller hub portion defines an inner surface having an annular recess, and at least one inlet passage and at least one outlet passage to provide flow paths for fluid entering and exiting the impeller. The torque converter further includes a wear member at least partially received in the annular recess, the annular wear member being formed from a ferrous material. The rotating housing portion, the blade portion, and the impeller hub portion are integrally formed as a single piece casting.

Abstract: The invention relates to a rotary lobe pump for conveying a fluid medium containing solids, comprising an inlet and an outlet for the medium being conveyed, and further comprising a pump casing and two rotary lobes arranged in said pump casing and having intermeshing rotary lobe vanes. According to the invention, the pump casing has two opposite casing half-shells which seal the pump casing fluid-tightly. The casing half-shells are double-walled.

Abstract: Microfabricated particles are dispersed throughout a matrix to create a composite. The microfabricated particles are engineered to a specific structure and composition to enhance the physical attributes of a composite material. The microfabricated particles are generated by forming a profile extrudate. A profile extrudate is an article of indefinite length that has a cross sectional profile of a desired structure with micro-scale dimensions. Upon or after formation, the profile extrudate may be divided along its length into a plurality of microfabricated particles.

Abstract: A platform cooling arrangement in a turbine rotor blade having a platform positioned between an airfoil and a root. The rotor blade, along a side that coincides with a pressure side of the airfoil, includes a pressure side of the platform includes a topside extending from an airfoil base to a pressure side slashface. The platform cooling arrangement includes: a main plenum residing just inboard of the topside in the pressure side of the platform, the main plenum extending through the platform from an upstream end having an aft position to a downstream end having a forward position; and cooling apertures. Near the upstream end, the main plenum includes an aft switchback, and, between the aft switchback and the downstream end, a forward arc. Each of the cooling apertures extends from the main plenum to a port formed on the pressure side slashface.

Abstract: A process for producing a rotationally symmetrical cast aluminium component by die casting, which is reworked partially on its inner and/or outer lateral surfaces. At least a part of the lateral surfaces is not treated and is used as a non-positively locking bearing surface for installation in an assembly and also for bracing the component.

Abstract: Decorative shape cast products and methods, systems, compositions and apparatus for producing the same are described. In one embodiment, the decorative shape cast products are produced from an Al—Ni or Al—Ni—Mn alloy, with a tailored microstructure to facilitate production of anodized decorative shape cast product having the appropriate finish and mechanical properties.