Abstract: Provided herein are systems, apparatuses, and methods of providing a centrifugally cast rotor assembly for an induction motor of an electric vehicle. The rotor assembly includes a rotor lamination stack with a cylindrical shape that terminates in a first end surface and a second end surface. The rotor lamination stack has multiple lamination discs, and each lamination disc has multiple rotor slots. The rotor assembly further includes copper bars disposed within the rotor slots, a first intermediary end ring disposed at the first end surface, and a second intermediary end ring disposed at the second end surface. A centrifugally cast first copper end ring that electrically and mechanically couples each of the copper bars is located proximate the first end surface, and a centrifugally cast second copper end ring that electrically and mechanically couples each of the copper bars is located proximate the second end surface.

Abstract: A pole cap for a battery pole of a battery has a sleeve-like contacting portion, which has an outer periphery widening conically in the direction of the battery pole and tapering conically in the direction of the battery pole. A terminal is formed as a double-walled terminal sleeve having an inner wall and an outer wall, both designed to be supported by a collar, where the walls form an annular gap for positively receiving the sleeve-like contacting portion of the pole cap and where the gap tapers in the direction of the collar.

Abstract: A method includes producing a light metal cast component from a melt of an aluminium casting alloy. The alloy contains, by weight, silicon with 3.5 to 5.0%, magnesium with 0.2 to 0.7%, titanium with 0.07 to 0.12%, boron with a maximum of 0.012%, and optionally further alloy elements together with less than 1.5%, the rest, aluminium as well as unavoidable impurities, wherein the melt is produced from a base melt, a first grain refiner of an aluminium-silicon alloy and a second grain refiner of an aluminium-titanium-alloy, wherein the melt, in relation to the total weight, contains in total an amount of 0.1 to 5.0% of the first and the second grain refiner; wherein the casting is carried out by a low-pressure method and the melt is acted upon by compacting after the casting.

Abstract: There is provided a hydraulic driving device for working machine having operability handling a change in burden weight in a front working device due to a loaded burden and the like when the working machine that accumulates energy in an accumulator and recovers and regenerates the energy performs an operation of lowering the front working device. A hydraulic driving device 5 includes a main pump 101, a boom cylinder 3, a tank 20, a flow rate control valve 6, an accumulator 300, a first differential pressure control valve 201, and a second differential pressure control valve 202. The first differential pressure control valve 201 is located between the boom cylinder 3 and the accumulator 300. The first differential pressure control valve 201 performs control on discharge oil from the boom cylinder 3 such that a differential pressure between before and after the flow rate control valve 6 becomes a target differential pressure.

Abstract: The invention relates to wafer-level manufacturing of optical devices such as modules comprising micro-lenses. In one aspect, passive optical components such as truncated lenses are manufactured by providing a substrate on which a multitude of precursor optical structures is present; and removing material from each of said multitude of precursor optical structures. Another aspect comprises a method for manufacturing a device comprising a set of at least two passive optical components, said method comprising the steps of using a tool obtained by carrying out the steps of manufacturing a precursor tool having a replication surface; and modifying said replication surface by removing material from said precursor tool.

Abstract: A casting and molding equipment for producing an amorphous alloy structural unit, including an injection system, an alloy melting system, a material feeding system, a mold system, a vacuum system, and a protective gas supply system. The injection system includes an injection tube, an injection mechanism, and a plunger rod; the plunger rod is adapted to move along an inner wall of the injection tube, and the injection mechanism is configured to control a moving direction and moving speed of the plunger rod. The alloy melting system includes a melting chamber and a heating unit; the heating unit is configured to melt an alloy material in the melting chamber; the heating unit includes an induction coil or resistance wire; the melting chamber is disposed in the injection tube, and the heating unit is disposed out of the injection tube.

Abstract: The disclosure provides a local extrusion device for high-pressing casting. The local extrusion device for high-pressure casting includes an extrusion core sleeve, an extrusion rod, an extrusion oil cylinder and an extrusion oil cylinder piston. The extrusion oil cylinder includes the extrusion oil cylinder piston, the extrusion oil cylinder piston is connected with the extrusion rod, the extrusion rod is positioned in the extrusion core sleeve, and the extrusion core sleeve and the extrusion oil cylinder are fixed.

Abstract: To keep operability of a hydraulic actuator excellent even in a state pressure has been sufficiently accumulated in a pressure accumulator. In a hydraulic driving device of a work machine including a hydraulic actuator, a tank, a flow control valve, and a pressure accumulator, there are further provided with a first pressure compensation valve that is for controlling difference between front and back pressures of the flow control valve constant and a second pressure compensation valve that is arranged between the pressure accumulator and the tank and is for controlling difference between front and back pressures of the flow control valve and the first pressure compensation valve constant.

Abstract: An injection system applied to a die casting machine includes a container module, a first mold module, a feeding module, and an abutting module. The container module includes a container casing member. The first mold module includes a first inlet structure partially embedded into the container casing member, and a second inlet structure partially embedded into the container casing member. The feeding module includes a first feeding assembly and a second feeding assembly. The abutting module is disposed on the container casing member for downwardly abutting the first feeding assembly and the second feeding assembly. The abutting module downwardly abuts the first feeding assembly so as to firmly position the first feeding assembly on the first inlet structure. The abutting module downwardly abuts the second feeding assembly so as to firmly position the second feeding assembly on the second inlet structure.

Abstract: A casting die device and a casting method. The casting die device has a core pin for forming an inner hole in a casted article. The core pin is a hollow body, and a pressurizing pin is inserted into a hollow inner part of the core pin. Vibrations from a vibrator of a micro vibration machine are imparted to the pressurizing pin via a vibration transmission member. The vibrations further propagate to the core pin from the pressurizing pin, and then propagate to the area surrounding the core pin in a molten metal that has been poured into a cavity.

Abstract: A metal component is produced using a casting-and-forming tool by casting a melt of a metal alloy into the casting-and-forming tool, wherein the melt is poured from above into a base part or reservoir of the casting-and-forming tool at a first pressure, applying pressure to the melt between the base part and an upper part while the melt is solidifying to a component, wherein the solidifying melt is pressurized at a second pressure, which is larger than the first pressure, when the melt is at least partly, i.e., mostly solidified to form a component compressing the component by relative movement of the base part to the upper part so as to compress the component with a third pressure, which is higher than the second pressure.

Abstract: An injection system applied to a die casting machine includes a container module, a first mold module, a second mold module, and a pipe module. The container module includes a container casing member, and the container casing member has a material receiving space. The first mold module includes a first mold structure embedded inside the container casing member, a first inlet reinforcing structure disposed on the first mold structure and partially embedded inside the container casing member, and a second inlet reinforcing structure disposed on the first mold structure and partially embedded inside the container casing member. The second mold module includes a second mold structure. The pipe module includes a first pipe body connected between the first mold structure and the second mold structure and embedded inside the container casing member, and a second pipe body connected to the second mold structure.

Abstract: A squeeze pin circuit is installed to a direction switching valve. The direction switching valve is configured to switch a direction of hydraulic pressure to a core cylinder. The squeeze pin circuit is configured to drive a squeeze pin. The squeeze pin is configured to partially pressurize molten metal filled in a cavity. The squeeze pin circuit includes a squeeze pin cylinder and a flow rate adjusting unit. The squeeze pin cylinder is coupled to the direction switching valve to drive the squeeze pin. The flow rate adjusting unit is installed on a hydraulic pressure path. The hydraulic pressure path couples the direction switching valve to a head side of the squeeze pin cylinder. The flow rate adjusting unit is configured to ensure pressure compensation and temperature compensation.

Abstract: A method for a die casting with a casting device which includes a casting valve with a valve piston and a post-compression piston configured to provide a post-compression. The method includes providing a casting valve in a closed position and a mold cavity which is cleaned and prepared for a mold filling process, opening the casting valve for a casting, filling the casting valve with a melt, closing the casting valve after the filling with the melt, cooling the casting valve and the melt, and removing a cast part. A post-compression is provided to the melt during the cooling by the post-compression piston.

Abstract: A wafer via solder filling device includes a solder bath comprising an accommodation space for accommodating a molten solder, with an open top, and an air outlet for exhausting air from the accommodation space; a fixing unit for fixing the wafer having a via formed in one surface in the accommodation space to seal the accommodation space airtight; and a pressing unit for pressing a bottom of the molten solder arranged in the solder bath and moving the molten solder upward, to fill the molten solder in the via.

Abstract: An automotive component including a composite casting is provided. The composite casting includes a steel member and an end cap fastened to an end portion of the steel member. A cast coupling member is cast about the end portion of the steel member including the end cap, thereby positively and rigidly securing the cast coupling member to the steel member. The automotive component can comprise an engine cradle, a control arm, an instrument panel support structure, a bumper assembly, or a twist axle. The cast coupling member is typically formed by casting-in-place aluminum about the end cap and the end portion of the steel member. The steel member is typically a tubular member, and the end cap typically includes a flange designed to provide a mechanical interlock surface with the cast coupling member. For example, the flange can have a polygonal shape, an outwardly extending member, or notches.

Abstract: Described herein is a method of combining discrete pieces of BMG in to a BMG feedstock that has at least one dimension greater than a critical dimension of the BMG, by methods such as thermoplastic forming, pressing, extruding, folding or forging. Other embodiments relate to a bulk metallic glass (BMG) component or feedstock having discrete pieces of a BMG, wherein the BMG component or feedstock has at least one dimension greater than a critical dimension of the BMG.

Abstract: Aluminum alloys are provided that have improved fluidity and elongation, as well as freedom of die soldering. The aluminum alloys are particularly suitable for die-casting of structural components. The aluminum alloy includes silicon at from about 8 weight % to about 11 weight %, manganese at from about 0.8 weight % to about 1.9 weight %, iron at from about 0.1 weight % to about 0.5 weight %, magnesium at from about 0.2 weight % to about 0.7 weight %, boron at from about 0.002 weight % to about 0.15 weight %, strontium at from about 0.006 weight % to about 0.017 weight %, less than about 0.25 weight % copper, less than about 0.35 weight % zinc, less than about 0.25 weight % titanium, and a balance of aluminum. Methods related to the aluminum alloys are also provided.

Abstract: Apparatuses and methods of forming battery parts are disclosed herein. In one embodiment, a method of forming a battery part includes receiving a flowable material into a cavity, and reducing a volume of the cavity while a pin extending through at least a portion of the cavity remains at least generally stationary therein. The method further includes sealing the cavity by slidably engaging at least a portion of the pin with a recess in the piston proximate the end face of the piston.

Abstract: An apparatus for press casting includes a casting mold formed of a fixed mold and a first moving mold operable to move relative to the fixed mold. The apparatus further includes a second moving mold operable to move relative to the first moving mold. A mold cavity, which forms a cast product, is configured by the fixed mold and the second moving mold. When the first moving mold is moved to a first predetermined position, a molten metal passage and a gas exhaust port, which communicate with the mold cavity, are formed at positions outside the mold cavity. A communication between the mold cavity and the molten metal passage, and the gas exhaust port is cut off by the second moving mold when the second moving mold is moved to a second predetermined position while the first moving mold is maintained at the first predetermined position thereof.

Abstract: A method of forming metal castings, including positioning a first end of a structural member in a first mold cavity and a second end of the structural member in a second mold cavity. The first and second mold cavities being fluidly coupled to a reservoir of molten metal. Applying a main pressure to the molten metal in the reservoir to force the molten metal into the first mold cavity and the second mold cavity. Then, applying a first auxiliary pressure to the first mold cavity and a second auxiliary pressure to the second mold cavity to densify the casting formed in the first mold cavity and the second mold cavity. Also, a method for casting including maintaining a main pressure at or less than an initial, mold-filling pressure after first and second mold cavities have been filled. Additionally, a method for detecting whether a first mold cavity is sufficiently filled with molten metal by monitoring a moveable element.

Abstract: Various embodiments provide methods and apparatus for forming bulk metallic glass (BMG) articles using a mold having a stationary mold part and a movable mold part paired to form a mold cavity. A molten material can be injected to fill the mold cavity. The molten material can then be cooled into a BMG article at a desired cooling rate. While injecting and/or cooling the molten material, the movement of the movable mold part can be controlled, such that a thermal contact between the molten material and the mold can be maintained. BMG articles can be formed without forming an underfilled part. Additional structural features can be imparted in the BMG article during formation. At least a portion of the formed BMG article can have an aspect ratio (first dimension/second dimension) of at least 10 or less than 0.1.

Abstract: A method of pressure forming a metal matrix composite (MMC), comprises: placing a fiber preform (not shown) into a die cavity (14) defined by a split die (12); introducing molten metal into the die cavity (14) through a sprue (16) to envelope the fiber preform; sealing the sprue (16); applying pressure direct to molten metal in the die cavity (14) with a mechanical compaction piston (18) to encourage infiltration of the fiber preform during solidification.

Abstract: Battery parts, such as battery terminals, and associated systems and methods for making same. In one embodiment, a battery part has a sealing region or sealing bead located on a lateral face of an acid ring for increasing resistance to leakage therepast as the battery container shrinks. Another embodiment includes a forming assembly for use with, for example, a battery part having a bifurcated acid ring with spaced apart lips. The forming assembly can include movable forming members that can be driven together to peen, crimp, flare or otherwise form the lips on the bifurcated acid ring.

Abstract: A compressor impeller and a method of manufacturing the compressor impeller. The magnesium alloy compressor impeller as a die-cast part comprises a hub shaft part, a hub disk part having a hub surface extending from the hub shaft part in the radial direction, and a plurality of vane parts disposed on the hub surface. The impeller can be manufactured by a die-cast method in which a magnesium alloy heated to a liquidus temperature or higher is supplied into molds with cavities corresponding to the shape of the impeller for a filling time of 1 sec. or shorter, a pressure of 20 MPa or higher is applied to the magnesium alloy in the cavities, and the pressurized state is maintained for a time of 1 sec. or longer.

Abstract: An apparatus for press casting includes a casting mold formed of a fixed mold and a first moving mold operable to move relative to the fixed mold. The apparatus further includes a second moving mold operable to move relative to the first moving mold. A mold cavity, which forms a cast product, is configured by the fixed mold and the second moving mold. When the first moving mold is moved to a first predetermined position, a molten metal passage and a gas exhaust port, which communicate with the mold cavity, are formed at positions outside the mold cavity. A communication between the mold cavity and the molten metal passage, and the gas exhaust port is cut off by the second moving mold when the second moving mold is moved to a second predetermined position while the first moving mold is maintained at the first predetermined position thereof.

Abstract: Some embodiments provide methods and systems for casting articles. One example of a method includes providing and positioning a thermal blanket within a mold cavity and then introducing a molten material into the mold cavity and into contact with the thermal blanket. The method allows the molten material to remain in a molten state during a dwell time that extends from the introduction of the molten material at least until the mold cavity is filled. In another example, a method of using a thermal blanket includes keeping a molten material in a molten state during a dwell time extending from first introduction of the molten material until pressurization. Systems including a variety of mold types, one or more thermal blankets, and in some cases preforms and/or inserts are also provided. Also described is a novel thermal blanket and method of manufacturing the same.

Abstract: An aluminum base part is composed of a forging cast product produced by a forging cast process and a nickel chromium plating layer formed on the forging cast product. The nickel chromium plating layer is composed of a semibright nickel plating layer formed on the forging cast product and having a thickness of 5 to 10 ?m, a bright nickel plating layer 33 formed on the semibright nickel plating layer 31 and having a thickness of 5 to 10 ?m, and a chromium plating layer 37 formed on the bright nickel plating layer 33 and having a thickness of 0.5 to 3 ?m. The present invention adopts a forging cast product rather than a cast product. The forging cast product has a smooth surface, so that a plating layer can be directly formed on the surface of the forging cast product without forming an undercoat resin layer.

Abstract: Nano-composite structures are formed by pre-loading carbon nanotubes (CNTs) into at least one of a plurality of channels running the length of a cartridge, placing the pre-loaded cartridge in a piston chamber of a die-casting machine, creating a vacuum therein, and filing the piston chamber with molten metal to soak the pre-loaded cartridge and fill empty cartridge channels. Pressure is applied via the piston to eject the carbon nanotubes and molten metal from the cartridge channels and inject the nano-composite mixture into a rod-shaped die cavity. The internal diameter of the cavity is equal to or less than the final diameter of the nozzle. The nano-composite mixture is cooled to form a solid nano-composite rod having the first predetermined diameter, wherein the carbon nanotubes are aligned in a non-random manner. Furthermore, drawing down the nano-composite rod to smaller diameter wire further disperses the nanotubes along the length of the wire.

Abstract: An apparatus for manufacturing metal articles, in particular of light, alloy, includes a die including a pair of portions which can be separated to each other, which, in the closed condition, delimitate forging cavities having a shape corresponding to one or more articles to be forged, and a furnace adapted to melt the metal and to control the reaching by the molten metal of the hollow impressions of the die, as a result of overflowing through a duct connected to the furnace. A portion of the die includes, for each hollow impression, a movable punch adapted to apply a predetermined pressure on the relevant article during the forging step. Each punch is moveable in a manner independent from the other punches, and the apparatus includes a controller for controlling the pressure applied by each punch during the forging step, which allow to level the pressure applied by all the punches on the relevant article.

Abstract: A forging apparatus and a forging method for rheo-casting are disclosed, in which primary rheo-casting using an upper mold and a lower mold, casting of a hub region of a product material using a first roller unit and casting of a rim region of the product material using a second roller unit are accomplished in series, enabling vehicular wheels having relatively complex shapes to be cast via a single casting process. Further, the product material includes wrought 6000 series aluminum alloys, which are easy to process and have relatively high strength and low weight, thus being suitable for the manufacture of vehicular wheels having complex shapes. Furthermore, recycling of the product material is possible.

Abstract: A method of forming a liquid-forged article. The method comprises introducing a melt into a die cavity; moving a punch relative to the die cavity such that the melt enters at least one high aspect ratio cavity in the punch and air is released via at least one air vent insert in the punch; and exerting a forming pressure on the melt while the melt solidifies in the high aspect ratio cavity.

Abstract: A method for manufacturing a compressor slider includes a slider preform manufacturing step, a resin coating step, and a machining step. In the slider preform manufacturing step, an iron slider preform in which at least one property selected from the tensile strength and the tensile modulus of elasticity is greater than that of flake graphite cast iron is manufactured using a prescribed mold. In the resin coating step, the slider preform is not machined, but the resin coating layer is formed on all or a part of the slider preform. In the machining step, only the resin coating layer is machined, and a completed slider is obtained.

Abstract: A method of forming metal castings includes positioning a first end of a structural member in a first mold cavity and a second end of the structural member in a second mold cavity. The first and second mold cavities are fluidly coupled to a reservoir of molten metal. A main pressure is applied to the molten metal in the reservoir to force the molten metal into the first and second mold cavities. First and second auxiliary pressures are applied to the first and second mold cavities to densify the castings formed in the first and second mold cavities. Another method for casting includes maintaining a main pressure at or less than an initial, mold-filling pressure after the first and second mold cavities have been filled. Additionally, a method for detecting whether a first mold cavity is sufficiently filled with molten metal includes monitoring a moveable element.

Abstract: A method of and an apparatus for high pressure die casting are disclosed. The method uses a die casting apparatus which comprises a group of three plungers for casting metal. The two of which, injection plunger 1 and assistant plunger 3, are used to reduce metal loading time and reduce entrapped gases in die casting during a fast injection stage. By moving into injection sleeve 2, the assistant plunger separates the mold cavity 11 from the space defined by assistant plunger 3, injection sleeve 2, and injection plunger 1. The flow power device for moving said assistant plunger 3 is mounded on a back plate 8. A third plunger, the intensification plunger 12, is used to squeeze casting as soon as the injection plunger advances to a position in which the runner is separated from the closed space.

Abstract: An integrated structural system for a vehicle is provided. The integrated structural system includes a molded duct system configured to guide airflow having a first section and a second section and configured to operably attach a vehicle component thereto. The integrated structural system also includes a metal structure integrated with the molded duct system by means for integrating the metal structure with the molded duct system forming an integrated structural load path assembly. The integrated structural load path assembly is configured as a load bearing area to distribute a load of the vehicle component operably attached thereto. The means for integrating the metal structure with said molded duct system include, but not limited to, at least one of, sonic welding, heat staking, insert molding, and gluing.

Abstract: Battery parts, such as battery terminals, and associated systems and methods for making same. In one embodiment, a battery part has a sealing region or sealing bead located on a lateral face of an acid ring for increasing resistance to leakage therepast as the battery container shrinks. Another embodiment includes a forming assembly for use with, for example, a battery part having a bifurcated acid ring with spaced apart lips. The forming assembly can include movable forming members that can be driven together to peen, crimp, flare or otherwise form the lips on the bifurcated acid ring.

Abstract: A system and method of preventing surface imperfections of die-cast products with the method comprising the steps of loading a volume of molten zinc from a source of molten zinc into a chamber of a dispenser station, dispensing the molten zinc from the dispenser station through a hot runner and into a mold cavity, continually maintaining the molten zinc in a molten state from the source of molten zinc to the mold cavity, interrupting the flow of the molten zinc to the mold cavity, following the contraction of the molten zinc in the mold cavity as the molten zinc solidifies therein; and removing the solidified die-cast zinc product from the mold cavity.

Abstract: A compressor impeller and a method of manufacturing the compressor impeller. The magnesium alloy compressor impeller as a die-cast part comprises a hub shaft part, a hub disk part having a hub surface extending from the hub shaft part in the radial direction, and a plurality of vane parts disposed on the hub surface. The impeller can be manufactured by a die-cast method in which a magnesium alloy heated to a liquidus temperature or higher is supplied into molds with cavities corresponding to the shape of the impeller for a filling time of 1 sec. or shorter, a pressure of 20 MPa or higher is applied to the magnesium alloy in the cavities, and the pressurized state is maintained for a time of 1 sec. or longer.

Abstract: An aluminum base part is composed of a forging cast product produced by a forging cast process and a nickel chromium plating layer formed on the forging cast product. The nickel chromium plating layer is composed of a semibright nickel plating layer formed on the forging cast product and having a thickness of 5 to 10 ?m, a bright nickel plating layer 33 formed on the semibright nickel plating layer 31 and having a thickness of 5 to 10 ?m, and a chromium plating layer 37 formed on the bright nickel plating layer 33 and having a thickness of 0.5 to 3 ?m. The present invention adopts a forging cast product rather than a cast product. The forging cast product has a smooth surface, so that a plating layer can be directly formed on the surface of the forging cast product without forming an undercoat resin layer.

Abstract: A method of applying a physical barrier to suppress thermal decomposition near a surface of a thermoelectric material including applying a continuous metal foil to a predetermined portion of the surface of the thermoelectric material, physically binding the continuous metal foil to the surface of the thermoelectric material using a binding member, and heating in a predetermined atmosphere the applied and physically bound continuous metal foil and the thermoelectric material to a sufficient temperature in order to promote bonding between the continuous metal foil and the surface of the thermoelectric material. The continuous metal foil forms a physical barrier to enclose a predetermined portion of the surface. Thermal decomposition is suppressed at the surface of the thermoelectric material enclosed by the physical barrier when the thermoelectric element is in operation.

Abstract: In a method of making a subframe of a motor vehicle profile elements made of hollow sections of steel are placed in a casting tool. Subsequently, aluminum material is filled into the casting tool to casting around the profile elements so as to form plural cast nodes on the profile elements in spaced-apart relationship.

Abstract: A method of forming integral articles having non-line-of-site contours includes the steps of providing a plurality of molds, the molds having at least one mold channel therethrough. The plurality of molds are stacked on one another to form a mold stack, wherein at least one portion of the mold stack provides a non-line of sight multi-level channel through at least partial overlap of the mold channels between adjacent ones of the plurality of molds. A flowable material is applied to the mold stack. The flowable material is pressed to fill the mold channels in each of the plurality of molds to form an integral article comprising a plurality of stacked integrally connected levels of the material, wherein through interconnection of the integrally connected levels the integral article provides at least one non-line of sight contour traversing in its thickness direction. The mold stack is then separated or removed to free the integral article.

Abstract: A molding machine able to stably detect an abnormality of a squeeze pin, for example, a die cast machine having a squeeze pin able to apply pressure to a melt of a cavity repeatedly performing a molding cycle including a pressing process making the squeeze pin advance and applying pressure to the melt of the cavity in a state where the melt is filled in the cavity and a spray process making the squeeze pin advance and performing at least one of lubrication and cooling of the squeeze pin in the state where the melt is not filled in the cavity, and, in the spray process, detecting a stroke of the squeeze pin and detecting an abnormality of the squeeze pin based on a comparison of the detection result about the stroke and a predetermined reference value.

Abstract: An amorphous alloy member including an irregular region having a center line average roughness Ra of about 0.1 ?m to about 1000 ?m on a surface, at least the irregular region including an amorphous alloy having an amorphous phase at a volume ratio of about 50% to about 100%. A process for manufacturing the amorphous alloy member, and an authenticity determination device and an authenticity determination method using the amorphous alloy member.

Abstract: After a molten metal of aluminum or an aluminum alloy having a temperature, which is higher than the liquidus line temperature of aluminum or the aluminum alloy by 5 to 200° C., is injected into a mold, when the mold is cooled to solidify the molten metal, the molten metal injected into the mold is pressurized at a pressure of 1.0 to 100 kPa from a high-temperature side to a low-temperature side, and the mean cooling rate is set to be 5 to 100° C./minute while the mold is cooled from the liquidus line temperature to 450° C., the temperature gradient formed in the mold being set to be in the range of from 1° C./cm to 50° C./cm.

Abstract: A molding machine able to stably detect an abnormality of a squeeze pin, for example, a die cast machine having a squeeze pin able to apply pressure to a melt of a cavity repeatedly performing a molding cycle including a pressing process making the squeeze pin advance and applying pressure to the melt of the cavity in a state where the melt is filled in the cavity and a spray process making the squeeze pin advance and performing at least one of lubrication and cooling of the squeeze pin in the state where the melt is not filled in the cavity, and, in the spray process, detecting a stroke of the squeeze pin and detecting an abnormality of the squeeze pin based on a comparison of the detection result about the stroke and a predetermined reference value.

Abstract: An apparatus and process for manufacturing a disc rotor made of a metal-based composite material, which enables stabilization of a preform support within a disc rotor casting cavity while minimizing likelihood of damaging of preforms. The apparatus comprises a lower die 10 and a movable core assembly 20 which constitutes a disc rotor casting cavity 18; a preform supporting portion 24a which is provided on a movable core assembly 20; a pressurizing and shaping portion 32 of an upper die 30 for applying pressure upon a molten metal accommodated in the cavity 18; and a preform biasing mechanism 40 having a biasing face 41b which can be brought into a face-to-face contact with the upper face of a preform 5 which is supported on the preform supporting portion 24a. On application of pressure upon the molten metal, the preform biasing mechanism 40 biases the preform 5 via the biasing face 41b to prevent the preform 5 from being shifted due to an increase in the pressure upon the molten metal.

Abstract: A metal flow system, for use in casting aluminium alloy using a pressure casting machine, is provided by a component of a die or mould assembly, for the machine, which defines a die cavity. The component defines at least part of an alloy flow path for the flow of aluminium alloy from a pressurized source of substantially molten aluminium alloy of the machine to the die cavity. The flow path includes at least one runner and a controlled expansion port, referred to also as a CEP, which has an inlet through which the CEP is able to receive aluminium alloy from the runner and an outlet through which aluminium alloy is able to flow from the CEP for filling the die cavity.

Abstract: In a method for making a cast product by squeeze casting using an AZ91D alloy, the AZ91D alloy is heated to a liquid state, a shot sleeve is filled with the liquid AZ91D alloy, and a seal is formed between the shot sleeve and a die. In addition, the liquid alloy is injected into the die with an injection unit at a pressure of greater than about 69 Mega Pascal (Mpa) and a gate velocity of less than about 500 millimeters per second (mm/sec) and the AZ91D alloy is solidified in the die to generate the cast product.