Abstract: A composite core die includes a reusable core die; and a disposable core die. The disposable core die is in physical communication with the reusable core die and surfaces of communication between the disposable core die and the reusable core die serve as barriers to prevent the leakage of a slurry that is disposed in the composite core die.

Abstract: Method of casting aluminum alloy ingot including lithium, including: preparing at least two molten aluminum based alloys in separate furnaces, first alloy with composition A free from lithium as purposive alloying element, and second alloy with composition B including lithium as purposive alloying element; transferring the first alloy via metal conveying trough from the furnace to a casting station; initiating casting an ingot and casting the first alloy to required length L1 in the casting direction; subsequently transferring the second alloy via metal conveying trough from the furnace to the casting station while simultaneously stopping transfer of the first alloy to the casting station; casting the second alloy from an end surface of the cast first alloy at length L1 to an additional required length L2 in the casting direction; cropping the cast ingot at a bottom thereof at a length greater than of equal to cast length L1.

Abstract: A method of manufacturing an aluminum power transmission rail product with a metallurgically bonded stainless steel cap comprises providing molten aluminum in a tundish; providing a roll formed stainless steel wear cap; pretreating and preheating the stainless steel cap, then introducing that cap into the tundish; co-casting the aluminum and cap through one or more dies; and tensioning the stainless steel cap at an exit of the casting die and rapidly cooling the same. An aluminum-stainless composite product is also disclosed.

Abstract: The invention relates to systems for transferring molten metal from one structure to another. Aspects of the invention include a transfer chamber constructed inside of or next to a vessel used to retain molten metal. The transfer chamber is in fluid communication with the vessel so molten metal from the vessel can enter the transfer chamber. A powered device, which may be inside of the transfer chamber, moves molten metal upward and out of the transfer chamber and preferably into a structure outside of the vessel, such as another vessel or a launder.

Abstract: The present invention relates to surface-treated rare earth-based magnetic particles comprising rare-earth-based magnetic particles, a first coating layer comprising a phosphoric acid compound which is formed on a surface of the respective magnetic particles and a second coating layer in the form of a composite coating film comprising a silicon compound and a phosphoric acid compound which is formed on a surface of the first coating layer, wherein an amount of Fe eluted from the rare earth-based magnetic particles is not more than 10 mg/L; a resin composition for bonded magnets comprising the above surface-treated rare earth-based magnetic particles and a resin; and a bonded magnet comprising the above surface-treated rare earth-based magnetic particles.

Abstract: An additive manufacturing system for printing a three-dimensional part is provided. The additive manufacturing system can include a mobile housing defining a front housing section and rear housing section; a photoreceptor drum defining a drum outer surface; a charging electrode positioned to apply electrostatic charge to the photoreceptor drum outer surface; a laterally stationary platform disposed outside the mobile housing adjacent the workpart and having at least one charged transfer electrode; a controller circuit for traversing the mobile housing about the workpart while selectively applying at least one laser diode emission onto the photoreceptor drum to expose a layer definition on the photoreceptor drum outer surface; front and rear microwave emitters disposed inside the mobile housing for fusing the respective metal print layers; and front and rear induction coils disposed inside the mobile housing for heating the workpart.

Abstract: A lathe control system used for three dimensional curved surface machining includes an input module, a control module, a work table, a feeding module, a first sliding module, a second sliding module, and a cutter. The control module is electrically connected with the input module, the feeding module, the first sliding module, and the second sliding module. The first sliding module drives the feeding module to move along a first direction. The second sliding module drives the feeding module to move along a second direction perpendicular to the first direction. The cutter is positioned on the feeding module. The feeding module is capable of driving the cutter to move back and forth along a third direction under the control of the control module. The third direction is perpendicular to first and second direction.

Abstract: A coated cutting tool has a base material of a WC-based cemented carbide and a film formed on the surface of the base material by a chemical vapor deposition method. The coated cutting tool has a rake face, a flank face and a cutting edge ridgeline part positioned between the rake face and the flank face being provided, wherein a total film thickness of the entire film is 3 to 20 ?m in an average film thickness, and one or more oblique cracks where an extension angle of the crack to the surface of the film is 45° or less are present at the rake face within 300 ?m from the cutting edge ridgeline part.

Abstract: The invention relates to a hydraulic expansion chuck (1) with a hydraulic expansion mechanism (23) that is integrated into a chuck body (10, 20) and exhibits an expansion bushing (23a) with a continuous cylindrical interior wall, and to a reducing bushing (24) arranged in the expansion bushing (23a) for accommodating a shank tool (W), in particular a tap drill. According to the invention, the outer circumference of the reducing bushing (24) is positively connected with the chuck body (10, 20) in a torque-proof manner, and its inner circumference is designed to be positively connected with the shank tool (W) in a torque-proof manner.

Abstract: An indexable cutting tool of a lever-lock type applies a clamping force. At a bottom of an insert fixing portion, there is formed a pillar-shaped lever in a state in which one end protrudes from a placement surface of the insert fixing portion. A screw applies a pressing force to the lever between the one end and a portion such that the lever is pressed and inclined with the portion s a fulcrum in the middle of the lever so that the one end applies a clamping force to the cutting insert.

Abstract: A hand tool for cutting tubular workpieces such as copper tubing used for plumbing includes a rotary cutting head which has a slot for receiving a length of tubing to be cut, a gear drive mechanism for rotating the cutting head, and a clamping handle which supports the gear drive mechanism, which is rotatably driven by a battery powered electric motor. to thus rotate the cutting head to sever a length of tubing. The clamping handle includes a pair of longitudinally disposed, generally semi-cylindrically-shaped handle shells which are pivotable apart from one another to receive a length of tubing to be cut, and pivotable to a closed position and compressed in the palm of a workman's hand to press against and clamp the tool to a length of tubing being cut.

Abstract: A pipe expander assembly for replacing an existing pipe with a new pipe. The expander assembly has a slitter disposed about a wire rope and abutting an expander at a spherical joint. The expander comprises a cone to expand a slit pipe and is internally connected to the wire rope by jaws that expand and contract about the wire rope due to threading of a jam nut into the cone. A pipe puller is connected to the back of the expander at a clevis and is adapted for connection to a new pipe, either through a jaw system, an adaptor, or fusion to the pipe.

Abstract: An electrical discharge machining tool of a ring sector for an aircraft turbomachine is provided. The ring sector includes an abradable member and a support element to which the abradable member is fixed; and one or more gripping holes opening on a radially outer surface of a central body of the support element. The machining tool includes at least two machining sets chosen from groove, notch, opening, length-cutting, or abradable element electro-machining sets. The machining tool also has a gripping device for the ring sector by the gripping holes. The gripping device is configured to move the ring sector from one of the electro-machining sets to another of the electro-machining sets.

Abstract: The present invention relates to an impeller manufacturing method in which a thermal cycle is performed on an assembly body with a brazing material formed of a Ni-containing Au alloy being placed at a bond portion of at least two impeller constituent members. The thermal cycle includes a temperature increasing process with a temperature increasing rate of 20° C./hr. to 100° C./hr., the process including a first intermediate retention and a second intermediate retention each keeping the temperature, the first intermediate retention performed in a temperature range of 500° C. to 850° C. and the second intermediate retention performed in a temperature range of 850° C. to 950° C. (but not including 850° C.). In the thermal cycle, the temperature is increased in a temperature range exceeding 950° C. after the second intermediate retention at a rate lower than that before the second intermediate retention.

Abstract: A header assembly for a pressure sensor and methods for manufacturing and using the same are provided. In one example embodiment, a header insert may include a base; a hollow protrusion coupled to the base and having a metalized inner surface and a metalized outer surface, wherein the metalized outer surface of the hollow protrusion is used to couple to a header and the metalized inner surface of the hollow protrusion is used to couple to a header pin; and wherein a seal is formed between the header, the header insert and the header pin.

Abstract: A welding system includes a power source configured to generate power and deliver the power to a welding electrode. The power source comprises a positive stud and a negative stud. The welding system also includes control circuitry configured to determine whether the welding electrode is properly connected to the positive and negative studs of the power source.

Abstract: Shielding gas mechanisms for arc welding systems are shown and described. The shielding gas mechanisms each include a gas sensor configured to read and provide a measurement of the shielding gas and a shut-off mechanism configured to stop power to a welding gun when the measurement of the shielding gas falls below a minimum effective level. In some examples, the gas sensor is coupled to the gas line proximal to an inlet of a wire feed unit. In some other examples, the gas sensor is coupled to the gas line proximal to an outlet of the wire feed unit. In even other examples, the gas sensor is coupled to the welding gun.

Abstract: Apparatus and method for purging atmospheric air from a chamber with a gas including means for generating a substantially non-turbulent, laminar flow front of the gas into the chamber with minimal turbulence to displace the atmospheric air in the chamber, the chamber having exhaust means associated therewith to permit the displaced atmospheric air to exit the chamber. The chamber is preferably a welding chamber and the gas is preferably argon.

Abstract: A resistance welding electrode includes a shaft-shaped holder and an electrode part in the form of an electrode cap or a pin electrode which are non-positively connected via tapered surfaces. Furthermore, cooling bores are also present. In such a resistance welding electrode the tapered cone angle is in a region of about 1 degree to 3 degrees and the holder and the electrode part are connected such that the holder and the electrode part are further in axial contact with each other via a radial surface contact, and the edge of the electrode part facing the holder is restrained in an associated reception recess on the holder side by means of reduction.

Abstract: The invention aims at providing a friction stir welding method which can achieve joining a butting portion to a deep location therein by reducing the load on the friction stirring device. The friction stir welding method for joining two metal members (1) using a primary joining rotary tool (F) with a stirring pin (F2) includes a primary joining process in which a rotating stirring pin (F2) is moved to the butting portion formed by butting the metal members (1) against each other and friction stir welding is carried out. In the primary joining process, only the stirring pin (F2) is brought into contact with the metal members (1).

Abstract: A method for manufacturing a mill roll including a preheating process for joining end portions 16 to 19 of a roll barrel member 13 and/or shaft materials 14, 15, and a friction pressure welding process strongly pressing and joining the shaft materials 14, 15 to a core material 11 after frictionally heating the joining end portions 16 to 19 by rotating the shaft materials 14, 15 while pressing to the core material 11, and a manufacturing apparatus including first and second holding means 29, 23 for the roll barrel member 13 and the shaft materials 14, 15, a rotating means rotating the shaft materials 14, 15, a pressing means 24 pressing the core material 11 and the shaft materials 14, 15 in an axial direction, and a preheating means 31 preheating the joining end portions 16 to 19 of the roll barrel member 13 and the shaft materials 14, 15.

Abstract: There is provided a laser beam processing method in which generation of foreign substances from cut can be suppressed and contamination of a surface of a work can be decreased when performing the processing method using a laser beam on the work made of a polymer material, and a laser processed product. Further, the present invention is to provide a laser beam processing apparatus that is used in the laser beam processing method. The present invention relates to a laser beam processing method for processing the work made of a polymer material using a laser beam, wherein the work is irradiated with a laser beam in a state that the optical axis of the laser beam is tilted in the advancing direction of processing by a prescribed angle with respect to the vertical direction of the work.

Abstract: The invention relates to a method for laser remote processing of a component on a fillet, wherein a laser beam is directed by means of a scanner device onto the component and guided over said component. The working range of the laser beam on the workpiece is illuminated with illuminating radiation and is captured by at least one image capturing unit. The illuminating radiation is directed onto the component at an angle of attack which is set depending the fillet geometry of the component. The captured image data are evaluated automatically and, with the aid of the evaluation, if appropriate, an automatic correction of the path of the laser beam is carried out.

Abstract: A method of applying a laser metal formed build layer on a surface of an article is disclosed. A laser deposition head including a light source and a nozzle is positioned relative to the surface of the article by a distance that is about normal to the surface. The surface of the article is melted locally using the laser light source to form a melt pool. Powdered metal is injected into the melt pool using the nozzle. The melt pool is solidified to form the build layer having a desired microstructure on the surface of the article.

Abstract: A method of laser machining a polymer construct to form a stent that includes a bioresorbable polymer and an absorber that increases absorption of laser energy during laser machining. The laser cuts the tubing at least in part by a multiphoton absorption mechanism and the polymer and absorber have a very low absorbance or are transparent to light at the laser wavelength.

Abstract: Disclosed are a cutting method of flexible display panel, a controlling device in the cutting method and a cutting apparatus of flexible display panel. The cutting method comprises steps of placing a transparent substrate (21) carried with a flexible film layer (22) on a base (10); cutting only the transparent substrate (21) by means of a cutting tool (30); obtaining a cutting trace of the cutting tool (30); and controlling a laser knife (40) to cut the flexible film layer (22) carried on the transparent substrate (21) along the cutting trace of the cutting tool cutting the transparent substrate.

Abstract: Flux formulations that remain pliable and tack-free after deposition are disclosed. In certain examples, the flux comprises a first component and an effective amount of a second component to provide a pliable flux after deposition. The flux may also include activators, plasticizers, surface active agents and other components.

Abstract: A method comprises identifying an engine-run tip position for an airfoil having a tip section and a root section. The engine-run tip position is displaced and rotated with respect to a nominal position, as defined with respect to the root section before engine running. A airfoil tip is formed on the airfoil, and a machining datum is defined adjacent the airfoil tip. The tip section is translated and rotated to locate the airfoil tip in the nominal position, without respect to a location of the root section. The tip section is restored to a nominal profile by machining the airfoil tip along a machining path defined with respect to the machining datum, wherein the machining path is independent of the displacement and rotation of the engine-run tip position and independent of the position of the root section.

Abstract: An exemplary method of making a piston assembly may include providing a piston crown defining at least in part an upper combustion bowl surface. The piston crown includes at least one crown mating surface. The method further comprising moving the crown mating surface in proximity to a skirt mating surface defined by a piston skirt, wherein the crown and skirt cooperate to define a cooling gallery extending about a periphery of the crown. The method may further include bonding the crown and skirt together by initiating an electric current along a conductive path between the crown and skirt mating surfaces, the conductive path comprising at least one conductive material extending from the crown mating surface to the skirt mating surface.

Abstract: A method for manufacturing a forging includes forming a bi-material billet by enclosing a core material other than steel in a steel cylinder with a cylindrical wall and steel end caps. The cylindrical wall is heated. The method includes a first forging blow on the heated billet or on a disk-shaped rough forging forged from the heated billet with a first closed blocker die to produce a forging preform, and a second forging blow on the preform with a second closed blocker die to produce a netshape forging. An evacuation hole is formed in a steel shell of the netshape forging and the core material is removed from the netshape forging via the hole. At least 85 percent of the core material is in a liquid phase during the first and second forging blows, and removal of the core material.

Abstract: A heat exchanger and a method of manufacturing the same are provided. With the method, a tube may be inserted into a through hole formed in at least one fin coated with a filler metal, and the tube and a fin collar of the at least one fin may be joined through the filler metal by a brazing processing. A flange may not be formed on or at a top of the at least one fin collar, which protrudes vertically from a central longitudinal plane of the at least one fin. The tube may be made of aluminum (Al), and an interval between an outer circumferential surface of the tube and an inner circumferential surface of the fin collar of the at least one fin may be approximately 0.1 mm or less. Accordingly, contact resistance occurring when fabricating a fin-tube heat exchanger using a mechanical tube expansion method may be reduced, and heat transfer performance of the heat exchanger may be improved because grooves formed within the tube may not be deformed.

Abstract: An introducer with a longitudinal slit is disclosed. The slit may enable a practitioner to remove the introducer from an elongate instrument without removing the elongate instrument from a hub or catheter. A hub having a hub taper is also disclosed. The hub taper may be configured to retain the introducer within the hub in some embodiments.

Abstract: A method for mounting components, in particular terminal blocks, on a supporting rail, wherein the components are removed from at least one magazine by means of a first device, which comprises a receptacle for the components and moves automatically to and fro between a starting position and an end position, and are plugged onto the supporting rail, which is held in a first mounting position by a second device, includes the second device automatically transferring the supporting rail into a second mounting position after one of the components has been plugged on and a further component, which is arranged next to said component in the longitudinal direction of the supporting rail when the latter is in the fully equipped state, is plugged onto the supporting rail held in the second mounting position, in an analogous manner to the component.

Abstract: A pipe removal method includes navigating a flexible element through a first pipe. At least a portion of the flexible element is coupled with the first pipe. The flexible element and the first pipe are pulled as a composite assembly, and the flexible element reinforces the tensile strength of the first pipe. In one example, the first pipe is at least pulled in compression between the point of coupling between the flexible element and the first pipe and a proximal end of the flexile element. In another example, the method includes wrapping the composite assembly around a spool. The composite assembly is thereby removed from the ground surrounding the first pipe.

Abstract: The present invention discloses a method of motor vehicle sheet blanking and a system of the same, wherein the blanking method comprises: firstly, nesting for motor vehicle sheet material, and cutting it into group sheets with a shape and size confirmed by the multi length of the sheet; next, designing a backing die depending on scraps to be cut from the group sheet, and hollowing in areas corresponding to blanking openings in the backing die, in which the dimensions of the blanking openings are greater than that of the actual scraps to be cut; then, placing a group sheet onto the backing die; laser cutting the group sheet based on the shape of motor vehicle sheet, the cut scraps dropping through the blanking openings in the backing die onto a scrap conveyor belt underneath; stacking the cut sheets. The present invention can effectively process scraps cut from sheets and improve the blanking efficiency.

Abstract: A variable hydrostatic track system for vertical lathes includes a plurality of sectors arranged between the periphery and the central opening of an annular base. Each sector includes an upper housing with a hydraulic fluid outlet such that when the injected hydraulic fluid overflows from the housings, it forms a film between the rotating chuck and the sectors. The track system further includes a positioning mechanism having a plurality of hydraulic cylinders fixed on the annular base in a radial direction between the central opening and the sectors. The rod of each hydraulic cylinder is coupled to a piston and to one of the sectors. Each sector is guided in a radial guidance element such that, due to the action of the hydraulic cylinder, the sector is movable between an inner radial position and an outer radial position.

Abstract: Automated fixture layout is approached in two distinct stages. First, the spatial locations of clamping points on the work piece are determined to ensure immobility of the fixtured part under any infinitesimal perturbation. Second, spatial locations are matched against a user-specified library of reconfigurable clamps to synthesize a valid fixture layout or configuration that includes clamps that are accessible and collision free. The spatial locations matching during the second stage can be the same spatial locations chosen in the first stage to ensure immobility, or a different set of spatial locations.

Abstract: A machine tool has a saddle moving over a bed and a table moving over the saddle. A scattering prevention cover that receives chips generated and a cutting fluid supplied during machining of a workpiece placed on the table is fixed to the table. A first flow path fixed to the saddle receives the chips and cutting fluid discharged from the scattering prevention cover, and a second flow path fixed to the bed receives and discharges the chips and cutting fluid discharged from the first flow path.

Abstract: A coolant supply device and supply method that can appropriately control the spraying of coolant using a single parameter. A pump (101) supplies coolant to a tool (D), and a measurement device (22) measures the discharge pressure of the pump (101). A control device (50) has a function for determining, from the rotation rate of the pump (101), the coolant flow path diameter for the tool (D) and the target value for the pump discharge pressure (target pressure) when the tool (D) is drilling.

Abstract: A skate blade retention mechanism for retaining a skate blade in a sharpening position to be sharpened includes a pair of elongated jaws configured for symmetrical jaw opening and closing movements about a centerline of the skate blade in the sharpening position. A biasing mechanism is configured and operative to apply a bias force to symmetrically bias the jaws toward a closed position with sufficiently high force to retain the skate blade in the sharpening position when the skate blade is located between the jaws as so biased. An actuator is configured to actuate the jaws against the bias force to an open position under user control to permit insertion and removal of the skate blade.

Abstract: A method of grinding a wafer includes positioning a wafer beneath a grinding wheel and aligning the wafer and the grinding wheel. The method further includes contacting a grinding surface of an outer base of the grinding wheel with the wafer while rotating at least one of the wafer and the grinding wheel, contacting a grinding surface of an inner frame of the grinding wheel with the wafer while rotating at least one of the wafer and the grinding wheel, without changing the alignment between the wafer and the grinding wheel, and tilting one of the wafer and the grinding wheel relative to the other during at least one of the first and the second contacting steps. The method also includes removing the wafer from the position beneath the grinding wheel.

Abstract: A sanding machine, with a machine bed, two vertical supports arranged laterally at the machine bed, with a bridge displaceable on the vertical supports in a horizontal, linear Y-axis, with an X-sled displaceable at the bridge in a horizontal, linear X-axis, with a Z-sled displaceable at the X-sled in a vertical, linear Z-axis, with an operating spindle supported at the Z-sled, particularly a sanding spindle, with a machine table and a magazine wheel comprising tool holders for sanding disks, and which is rotational about an axis parallel in reference to the Z-axis, with the operating spindle being able to remove a tool from a tool holder and place it there when this tool holder is rotated into an exchange position, with the tool magazine being arranged underneath the machine table and in the area of the exchange position.

Abstract: This invention provides a polishing composition comprising an abrasive, a water-soluble polymer and water. The water-soluble polymer comprises a polymer A having an adsorption ratio of lower than 5% and a polymer B having an adsorption ratio of 5% or higher, but lower than 95% based on a prescribed adsorption ratio measurement. Herein, the polymer B is selected from polymers excluding hydroxyethyl celluloses.

Abstract: A chemical mechanical polishing composition for polishing a substrate having a tungsten layer includes a water based liquid carrier, a colloidal silica abrasive dispersed in the liquid carrier and having a permanent positive charge of at least 6 mV, an amine compound in solution in the liquid carrier, and an iron containing accelerator. A method for chemical mechanical polishing a substrate including a tungsten layer includes contacting the substrate with the above described polishing composition, moving the polishing composition relative to the substrate, and abrading the substrate to remove a portion of the tungsten from the substrate and thereby polish the substrate.

Abstract: A polishing head assembly for single side polishing of silicon wafers is provided. The polishing head assembly includes a polishing head and a cap. The polishing head has a recess along a bottom portion, the recess having a recessed surface. The cap is positioned within the recess, and has an annular wall and a floor extending across the annular wall. The floor is spaced from the recessed surface to form a chamber therebetween. The chamber is configured to be pressurized for deflecting the floor. The annular wall is attached to the polishing head with an adhesive.

Abstract: The invention relates to an insert for an attack tool, the insert comprising a super-hard cap having a volume and bonded to a substrate at an interface, the super-hard cap having an average Young's modulus of greater than 900 GPa and the substrate characterized in that it comprises a reinforcing bolster portion as a means for stiffening a region of the substrate proximate the interface, the reinforcing bolster portion having an aggregate volume that is greater than that of the super-hard cap and an average Young's modulus at least 60% that of the super-hard cap. The invention further relates to a method for manufacturing such an insert and a method for using such an insert.

Abstract: A fixed abrasive article including a blend of abrasive particles having a first type of shaped abrasive particle comprising a first height (h1), a second type of shaped abrasive particle comprising a second height (h2) less than the first height, where the blend of abrasive particles includes a first content of the first type of shaped abrasive particles and a second content of the second type of shaped abrasive particle, and the first content is different as compared to the second content.

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 multi-functional hand tool that has releasable tool attachments that affix to a pair of articulating handles that provide for gripping, rotating, twisting, cutting, pounding, and performing other functions commonly done using a number of different tools. The multi-functional hand tool having a locking mechanism that provides for manipulating a workpiece, without damage or marring of the workpiece.

Abstract: The present invention provides methods and systems for a rotary impact device having an annular exterior surface for use with an impact wrench for providing torque to a fastener. The rotary impact device includes an input member having an input recess for receiving the anvil of the impact wrench, an output member having an output recess for receiving the fastener, and an inertia member. The inertia member is stationary and positioned on the exterior surface of the rotary impact device for increasing the torque applied to the fastener.