Abstract: Metal matrix composites are disclosed that have a low coefficient of thermal expansion and low density. The composite includes a matrix formed from a low CTE metal alloy in which micron-scale ceramic particles are homogeneously dispersed therein. Methods for producing such composites are also disclosed. The composites also have improved yield strength and specific modulus.

Abstract: Metal matrix composite granules are disclosed comprising a ceramic phase dispersed in a matrix phase. The matrix phase includes aluminum or an aluminum alloy. The granules have an average particle size in the range of from about 100 ?m to about 1,000 ?m. Also disclosed are methods for producing the granules or articles or processes for using the granules to produce various articles, among other things.

Abstract: A magnet manufacturing method has a step of preparing magnetic powder of a hard magnetic material, which includes one or more of an Fe-N-based compound and an R-Fe-N-based compound, a step of pressurizing and molding the magnetic powder at a pressure equal to or higher than a fracture pressure at which the particles of the magnetic powder are destroyed, to obtain a primary molding, and a step of heating the primary molding at a temperature lower than a decomposition temperature of the magnetic powder. The magnetic powder has at least two peaks in a particle size distribution.

Abstract: The present invention provides iron powder for dust cores that has excellent compressibility and low iron loss after formation. In the iron powder for dust cores, Si content is 0.01 mass % or less, apparent density is 3.8 g/cm3 or more, the ratio of iron powder particles with a particle size of 45 ?m or less is 10 mass % or less, the ratio of iron powder particles with a particle size of over 180 ?m and 250 ?m or less is less than 30 mass %, the ratio of iron powder particles with a particle size of over 250 ?m is 10 mass % or less, and the Vickers hardness (test force: 0.245 N) of a powder cross-section is 80 Hv or less.

Abstract: Methods of forming dispersoid hardened metallic materials are provided. In an exemplary embodiment, a method of producing dispersoid hardened metallic materials includes forming a starting composition with a base metal component and a dispersoid forming component. The starting composition includes the base metal component in an amount from about 50 to about 99.999 weight percent and the dispersoid forming component in an amount from about 0.001 to about 1 weight percent, based on the total weight of the starting composition. A starting powder is formed from the starting composition, and the starting powder is fluidized with a fluidizing gas for a period of time sufficient to oxidize the dispersoid forming component to form the dispersoid hardened metallic material. The dispersoid forming component is oxidized while the starting powder is a solid.

Abstract: A method of sintering a metal injection-moulded, green aerofoil component. The method includes providing a setter having a stationary support arranged to support an aerofoil part of the component and a moveable platform arranged to support an end part of the component, the moveable platform being independently moveable relative to the stationary support. The method further includes locating the green component on the setter such that the aerofoil part and the end part are supported by respectively the stationary support and the moveable platform. The supported green component is then sintered, the moveable platform moving during the sintering relative to the stationary support to accommodate sintering-induced shrinkage of the component.

Abstract: A method for producing a green compact from a powdered or granular material is disclosed. An embodiment of the method includes moving a fill shoe, which is filled with powdered or granular material, by an adjusting device from a first park position to a first end position. The fill shoe is moved from the first end position to a second end position over a construction chamber and the construction chamber is filled with the powdered or granular material in the fill shoe in a layer. The fill shoe is moved from the second end position to a second park position after filling the construction chamber with the layer, where the second park position is different from the first park position.

Abstract: Provided are an article and a method of forming an article. The method includes providing a metallic powder, heating the metallic powder to a temperature sufficient to joint at least a portion of the metallic powder to form an initial layer, sequentially forming additional layers in a build direction by providing a distributed layer of the metallic powder over the initial layer and heating the distributed layer of the metallic powder, repeating the steps of sequentially forming the additional layers in the build direction to form a portion of the article having a hollow space formed in the build direction, and forming an overhang feature extending into the hollow space. The article includes an article formed by the method described herein.

Abstract: A method of manufacturing a multi-material tubular structure includes spinning a can, depositing a powdered material into the can and compacting the powdered material within the can to provide a tubular structure.

Abstract: A process for making silver nanostructures, which includes the step of reacting at least one polyol and at least one silver compound that is capable of producing silver metal when reduced, in the presence of: (a) a source of chloride or bromide ions, and (b) at least one copolymer that comprises: (i) one or more first constitutional repeating units that each independently comprise at least one pendant saturated or unsaturated, five-, six-, or seven-membered, acylamino- or diacylamino-containing heterocylic ring moiety per constitutional repeating unit, and (ii) one or more second constitutional repeating units, each of which independently differs from the one or more first nonionic constitutional repeating units, and has a molecular weight of greater than or equal to about 500 grams per mole, is described herein.

Abstract: The present invention provides a method for producing silver particles, including the steps of: mixing a thermally decomposable silver compound and an amine compound to prepare a silver-amine complex as a precursor; and heating the silver-amine complex at a heating temperature equal to or higher than the decomposition temperature of the silver-amine complex to precipitate silver particles, the silver compound being silver carbonate, the amine compound being terminated with a primary amino group on at least one end and containing a predetermined hydrocarbon group R with a carbon number of 4 to 10. In the method of the present invention, silver particles with the particle size controlled to fall within the range of 20 nm to 200 nm in terms of an average particle size can be produced.

Abstract: A tool arrangement containing a tool holder and a tool having a tool head for processing workpieces and a shaft supporting the tool head, wherein the tool holder and the shaft each have a planar surface oriented transversely with respect to the axial direction of the tool holder and the shaft, the planar surfaces lying opposite one another. The tool holder and the shaft are connected non-rotatably and releasably to one another by a connecting mechanism which has a journal projecting in the axial direction and a receptacle which receives the journal.

Abstract: A drill and/or tap guide, adapted for use in machining a straight hole through a variety of workpieces, defining a plurality of standard diameter-sized guide holes, presenting orthogonal sides and surfaces, and a plurality of alignment lines that cooperatively facilitate alignment of the guide and workpiece, and further presenting a double-V clearance notch that facilitates use with angular and curvilinear workpieces, and removal of extrusion and chips during drilling.

Abstract: A stroke safety device for a key duplicating machine has a fixed mount and a movable mount. The fixed mount is mounted around a connecting shaft of the key duplicating machine and has a first body, multiple first resilient members, multiple pressing elements, and an adjusting element. The first body has a through hole, an inclined segment, and a mounting recess. The movable mount is pivotally connected to the fixed mount and has a second body and an operating element. The second body is pivotally mounted on a base of the key duplicating machine to cover the inclined segment, and has two opposite side segments. The abutting rod is inserted into the mounting recess of the first body to selectively abut against the adjusting element.

Abstract: Thermally laminated foam boards, methods for making thermally laminated foam boards, apparatus for making thermally laminated foam boards, smaller foam pieces made from thermally laminated foam boards, methods for making smaller foam pieces from thermally laminated foam boards, parts made from thermally laminated foam boards, methods for making parts from thermally laminated foam boards, and tools for making parts from thermally laminated foam boards are disclosed. The thermally laminated foam boards are made by thermally bonding at least two polystyrene boards together.

Abstract: In the ball end mill, at least two end cutting edges (9) are extended to the vicinity of an axis (O) at a tip portion of an end mill main body (1) which rotates around the axis (O). In two gashes (7) in which two end cutting edges (9) adjacent to each other in a circumferential direction are formed, a first gash (7A) on the end mill rotation direction (T) side extends beyond the axis (O) on the tip of the end mill main body (1) and a second gash (7B) on the rear side in the end mill rotation direction (T) does not exceed the axis (O). A first tip flank face (8A) which intersects with the first gash (7A) through a first end cutting edge (9A) is extended toward a second tip flank face (8B) which intersects with the second gash (7B) through a second end cutting edge (9B).

Abstract: A high-feed milling tool assembly includes a tool and a ramping insert. The ramping insert includes ramping, feed and side sub-edges. The ramping and feed sub-edges are longer than the side sub-edges and converge with increasing proximity to the side sub-edge to which they are both connected.

Abstract: A motorized saw assembly includes a base assembly having a workpiece support surface which defines a workpiece surface plane, an upper support assembly configured to support a saw blade, and a hinge assembly including a first linkage assembly and a second linkage assembly. The upper support assembly is configured to move between a first position, whereat the first linkage assembly and the second linkage assembly extend substantially perpendicular to the workpiece surface plane, and a second position, whereat the first linkage assembly and the second linkage assembly extend over the workpiece support surface.

Abstract: A powered saw including a saw blade configured to cut a workpiece and driven by a drive train having a narrow profile. The powered saw includes a miter saw having a chain drive disposed in a housing having a narrow profile. The powered saw includes a blade support assembly configured to reduce or eliminate interference between a workpiece and the powered saw. The miter saw enables a user to make right angle cuts, left angle cuts, and zero cuts of tall and atypically sized workpieces.

Abstract: A reciprocating tool includes a motor, a crank, a connecting rod, a rod, a tool bit, and a counter weight. The tool bit is mounted such that the action portion is positioned on a side opposite to a side with the rod central axis or the extended line of the rod central axis viewing from the rotational center of the crank. The first eccentric shaft and the second eccentric shaft are disposed such that at a position where the first eccentric shaft causes the rod to reach TDC, the second eccentric shaft causes the counter weight to reach BDC or a point before the BDC, and at a position where the first eccentric shaft causes the rod to reach the BDC, the second eccentric shaft causes the counter weight to reach a point before the TDC.

Abstract: A band saw blade sensor and control system to sense and control saw blade deviation of a continuous, flexible metal saw blade driven around a pair of pulleys. A pair of spaced proximity inductive sensors is positioned adjacent to a side of the saw blade in order to detect blade deviation during operation. A controller mechanism receives input from each of the pair of inductive sensors in order to control and adjust band tension on the blade, and in order to control and adjust blade force on a work piece.

Abstract: A band saw blade sensor and control system to sense and control saw blade deviation of a continuous, flexible metal saw blade driven around a pair of pulleys. A pair of spaced proximity inductive sensors is positioned adjacent to a side of the saw blade in order to detect blade deviation during operation. A controller mechanism receives input from each of the pair of inductive sensors in order to control and adjust band tension on the blade, and in order to control and adjust blade force on a work piece.

Abstract: A bimetal band saw blade has a cutting edge with a plurality of cutting teeth defining repeating, variable pitch patterns and variable set patterns within pitch patterns. Each relatively heavy set tooth defines a first primary clearance angle, and each unset and relatively light set tooth defines a second primary clearance angle. Each first primary clearance angle is less than or equal to about 20°, each second primary clearance angle is less than or equal to about 25°, and each first primary clearance angle is within the range of about 4° to about 6° less than each second primary clearance angle. Each unset or light set tooth defines a greater gullet area than a respective heavy set tooth and/or a finer pitch than the respective heavy set tooth. Each tooth defines a positive rake angle within the range of about 3° to about 10°.

Abstract: A method of producing a rotationally orientated thread starting at a desired angular position and suitable for mass production is provided. The method is particularly suitable for improving the angular positioning of spark plugs in car engines. The method involves measuring precisely the length (L) of the tool (13) and the distance, at a particular angular position, of a full thread form (14) of the thread to the tip, so that its start position at the tip can be calculated. Using that distance as an offset of the length of the tool reported to the CNC machine, and starting from its reference position, it commences producing the thread (12) in the bore (11) at the desired angular position of the bore (11).

Abstract: In order to easily form curved holes and straight holes of desired shapes, an electrochemical machining tool of the present invention comprises a tool body including: an electrode made from an electrically conductive material in a cylindrical shape extending along an axial line and having flexibility, an electrolytic solution flowing through an internal flow channel of the electrode toward a tip side; and an insulating layer coated on an outer circumferential face of the electrode so as to expose the tip of the electrode. A fluid outflow hole is formed in the tool body, passing through the tool body in a radial direction and guiding the electrolytic solution flowing through the flow channel outward in the radial direction, and the electrochemical machining tool further comprises a tube-shaped member selectively opening and closing the fluid outflow hole.

Abstract: Method for manufacturing a braze joint gap for connecting a first part to a second part via brazing or soldering, comprising the steps of: adding microstructural elements to a first connecting surface of the first part to be connected to the second part via brazing or soldering; aligning the second part and the first part or an electrode part having a tool contour, which is identical to the contour of the first connecting surface; electro-chemically machining or precise electro-chemically machining a second connecting surface of the second part by polarizing the first part or the electrode part as a cathode and the second part as an anode.

Abstract: A solder supply device is provided with a solder cup housing liquid solder that is cylindrical and open at one end; a nozzle section, for ejecting solder from the solder container, that is inserted into the solder container; a flange section that is provided on an outer circumferential section of the nozzle section and that is engaged inside of the solder cup; solder supplied from the tip of the nozzle section by the solder cup being moved; a magnet provided in the outer circumferential surface of the solder cup; and magnetic sensors able to detect the approaching of the magnet are provided at a position facing the outer circumferential surface of the solder container. Based on the positions of the magnet and the sensor, the post-movement position of the solder container is detected and it is detected that solder has run out from inside the solder cup.

Abstract: The present invention provides a unique and novel, low-cost external assembly that can be used to add a pulsed current functionality to a continuous welding machine. The external assembly is located in series between a pedal for controlling the welder and the welder itself. The external assembly includes a controller that modifies the pedal input signal typically entering directly into the welder. The modified signal converts the continuous welding machine such that it operates as a pulsed welding machine.

Abstract: A power source for an implement used to perform a welding or cutting operation, the power source including an engine component including a generator and a rectifier electrically connected to the generator and adapted to convert alternating current provided by the generator to a direct current, the engine component being switchable between an on condition and an off condition; at least one battery, wherein the engine component and at least one battery are electrically connected to a chopper bus; and a controller in communication with the generator, chopper bus, operation chopper, and the charging switch; an auxiliary power converter including at least one of a DC to AC and a DC to DC converter, the auxiliary power converter being electrically connected to the operation chopper and the at least one battery.

Abstract: method and apparatus for providing welding-type power includes receiving an input that may be either a single or a three phase input voltage. Three power modules, each having a single phase boost power circuit, and an output circuit process the input power. A weld output circuit receives and combines the outputs of the three power modules. An input power distribution module connects the three power modules such that each receives a unique single phase power signal. A controller controls the three power modules and the input power distribution module.

Abstract: There is provided an arc welding control method of feeding a welding wire according to a push-pull feeding control using a push-side feeding motor which rotates in a forward feeding direction at a feeding rate set to a push feeding-rate setting value and a pull-side feeding motor which alternates a forward feeding rotation and a reverse feeding rotation periodically, and generating short-circuiting periods and arc periods to perform welding. An average feeding rate of the pull-side feeding motor is detected. The push feeding-rate setting value is corrected to the detected average feeding rate of the pull-side feeding motor.

Abstract: A welding apparatus for joining a weldable fastening element onto a workpiece by a welding process, wherein the welding apparatus comprises: an electric welding power source; a fastening element holding device for holding the fastening element during welding; a first drive device for moving the fastening element holding device along a first axis; a cleaning electrode holding device for holding a cleaning electrode along a second axis; and wherein the cleaning electrode is connectable to the electric welding power source. The fastening element holding device and the cleaning electrode holding device are mounted on a common tool carrier and the tool carrier is movable on a joining head by a tool carrier drive from a joining position to a cleaning position, and in the joining position the first axis defines a joining axis, and in the cleaning position the second axis is aligned with the joining axis.

Abstract: A welding gun alignment detection device is provided. The device includes an upper block, a lower block, a housing, and a side pressure sensor. The upper block includes a central portion that has an upper tip insertion bore opened upward. The lower block is disposed under the upper block and has a central portion with a lower tip insertion bore opened downward. The housing includes the upper block and the lower block disposed therein and includes inner sides each facing outer sides of the upper block and the lower block. The side pressure sensor is configured to detect a force transferred to the inner side of the housing due to a movement of the upper block and the lower block.

Abstract: A bearing component part for use in a diffusion welding process, comprising a core part presenting a first circumferential surface, at least one annular part presenting a second circumferential surface, wherein the core part and the annular part are attached to and along each other in a circumferential manner through their first circumferential surface and second circumferential surface. The at least one annular part is substantially u-shaped in a cross sectional view, comprising two opposing sides connected by a base side together forming a space. The at least one annular part is arranged to receive a first material in the space formed by the u-shape.

Abstract: A bearing component and a method to form a bearing component. The bearing component comprises a first and a second metallic material wherein the first material presents a first carbon content and the second material presents a second carbon content, wherein the first material and the second material have been joined by a diffusion welding process. The diffusion welding process has resulted in a transition zone with a varying carbon content between the first material and the second material. The varying carbon content in the transition zone is essentially within an interval, wherein the interval end points are defined by the carbon content of the first material and the second material.

Abstract: A method of preparing an apparatus for material processing by generating optical breakthroughs in an object. The apparatus includes a variable focus adjustment device. A contact element is mounted to the apparatus, the contact element has a curved contact surface having a previously known shape. The position of the contact surface is determined prior to processing the object, by focusing measurement laser radiation near or on the surface by the variable focus adjustment device, and the focus position is adjusted in a measurement surface intersecting the expected position of the contact surface. Radiation from the focus of the measurement laser radiation is confocally detected. The position of points of intersection between the measurement surface and the contact surface is determined from the confocally detected radiation to determine the position of the contact surface from the position of the points of intersection and the previously known shape of the contact surface.

Abstract: A laser beam machine has a laser head (3) for emitting a laser beam onto a workpiece which is to be treated, and a movement unit (1, 2, 9) for physically moving the laser head (3), which movement unit has a linearly moving machine portal (1) and a transverse carriage (2) which is held such that it can be moved on said machine portal in a transverse manner, wherein a flexible fibre cable (10) with a minimum permissible bending radius enters at an inlet point on the upper laser head end for transmitting the laser beam, and wherein a cable guidance system (12, 13) is provided in order to guide the fibre cable (10) at least over a portion of its length.

Abstract: A laser welding method to weld two adjacent metal elements of a stator winding with rigid bars for an electric machine; the two metal elements are arranged one beside the other and have respective upper surfaces, which are arranged coplanar to one another and have at least one common edge; in succession, in the direction of the upper surfaces of the two metal elements, a first laser beam is aimed, which is fed along a first welding line, which is perpendicular to the common edge and extends through the common edge itself, and then a second laser beam is aimed, which is fed along a second welding line, which is perpendicular to the common edge and extends through the common edge itself, is parallel to and spaced apart from the first line and has a length that is smaller than the one of the first line.

Abstract: The invention concerns a method for producing three-dimensional objects (6) layer by layer using a powdery material (7) which can be solidified by irradiating it with a high-energy beam (4), said method comprising the steps of: applying a first layer of powdery material onto a working area (5); solidifying a part of said first layer by irradiating it with a high-energy beam; and applying a second layer (8) of powdery material onto the first, partly solidified layer. The invention is characterized in that the method comprises the step of: determining a rate at which the temperature of the second layer (8) increases after application onto the first layer. The invention also concerns an apparatus configured to operate according to the above method.

Abstract: A laser welding system and method of joining a plurality of parts includes a shielding enclosure assembly. The shielding enclosure assembly includes a tubular enclosure and is provided with a gas supply port and a gas evacuation port. An isolator is provided between a bottom end of the tubular enclosure and parts to be joined to contain shielding gas and may also provide electrical insulation insulating the shielding enclosure assembly from the parts to be joined.

Abstract: In one aspect, composite preforms for the repair of superalloy parts and/or apparatus are described herein. For example, a composite preform comprises a nickel-based superalloy powder component, a nickel-based braze alloy powder component and a melting point depressant component disposed in a fibrous polymeric matrix. The fibrous polymeric matrix can form a flexible cloth in which the nickel-based superalloy powder component, nickel-based braze alloy powder component and melting point depressant component are dispersed.

Abstract: A wire includes, in mass % with respect to the total mass of the wire, in the total of a flux and a steel sheath, 0.04 to 0.12% of C, 0.3 to 0.8% of Si, 1.5 to 3.0% of Mn, 0.2 to 1% of Ni, 0.8 to 1.4% of Al in terms of Al2O3 and Al2O3 in total and 0.3 to 0.6% of Al, and 0.004 to 0.012% of B, and further includes, in the flux, 5.0 to 7.0% of Ti oxide in terms of TiO2, 0.2 to 0.6% of Si oxide in terms of SiO2, 0.4 to 0.7% of Zr oxide in terms of Zro2, 0.1 to 0.5% of Mg, 0.02 to 0.1% of Na compound in terms of Na2O, and 0.04 to 0.1% of K compound in terms of K2O.

Abstract: A component connection includes a first component, which is made of a material attractable by a magnet, and a second component which lies directly or indirectly adjacent to the first component and which has a hole. A magnetic element is provided which covers the hole and attracts the first component such that both components are clamped together.

Abstract: A spring compensation structure for a torque wrench includes a body, a compensation component and an engaging head. The body has a first connecting portion, The compensation component is installed on the body and has a compensation distance, wherein one end of the compensation component is abutted on the first connecting portion of the body. The engaging head has a second connecting portion; the second connecting portion is detachably disposed on the body and is abutted on the other end of the compensation component, wherein a distance between the second connecting portion and the first connecting portion is equal to the compensation distance.

Abstract: An exemplary gas turbine engine component assembly includes, among other things, a case having a generally cylindrical outer surface. At least one synchronizing ring is received at least partially about the outer surface of the case. A plurality shims situated between an inner surface on the at least one synchronizing ring and the outer surface of the case at a plurality of shim locations are circumferentially spaced about the case outer surface. Each shim location includes at least one of the shims. A radial thickness of the shims at a first one of the shim locations is different than the radial thickness of the shims at a second one of the shim locations.

Abstract: A steam generator includes a lower integrated tubesheet and plenum (ITP) configured to receive feedwater and a first set of heat transfer tubes fluidly coupled to a plurality of stubs protruding from a first side of the lower ITP. A second set of heat transfer tubes fluidly couples to plurality of stubs protruding from a second side of the lower ITP. The first set of heat transfer tubes is coiled in a substantially clock-wise direction, and the second set of heat transfer tubes is coiled in a substantially counter-clockwise direction. The steam generator further includes an upper ITP fluidly coupled to the first and second set of heat transfer tubes, wherein the feedwater entering the lower ITP is converted to steam in the first and second sets of heat transfer tubes. The upper ITP is configured to transport the steam away from the steam generator.

Abstract: A separator apparatus is provided for a cutting machine which separates chips from coolant, wherein the separator includes a fluid chamber into which an airborne mixture of chips and coolant driven by an airflow enters via an entry port, the separator apparatus being configured to: sufficiently slow the speed of the airborne mixture once inside the chamber so that the chips and coolant separate out from the airflow; retain the chips and coolant released from the airborne mixture in the fluid chamber; and allow air from the airborne mixture to exit the fluid chamber via an air outlet; wherein the fluid chamber includes a chip collector which captures the chips and enables the chips to be separated and removed from the coolant in the chamber; and wherein the fluid chamber includes a coolant outlet through which coolant, from which the chips have been removed, is able to exit.

Abstract: An apparatus for processing material to a desired shape by controlling a cutting tool by wireless communication, capable of performing cutting/beveling and processing using one cutting tip and performing cutting and improvement operations of a tube material. The processing apparatus includes a drive wheel rotatably coupled to one side of a main body part while a workpiece penetrates the drive wheel, a main motor unit for rotating the drive wheel (in a C-axis direction), at least one stage coupled to the front of the drive wheel to precisely reciprocate in a center direction of the workpiece (in an X-axis direction), a cutting tool mounted to the stage so as to cut an outside surface or an end surface portion of the workpiece, and a control unit for controlling the stage and the main motor unit, wherein the control unit and the stage are controlled by wireless communication.

Abstract: To provide a tool transfer apparatus including gripping force measuring unit for tool holding unit of a tool accommodation apparatus and a machining system including the tool transfer apparatus, a handling robot can perform operation of detaching a tool from a grip positioned at a tool attachment/detachment position of a tool magazine in a machine tool and transferring the tool to a tool stocker, and operation of transferring a tool from the tool stocker and attaching the tool to a grip positioned at the tool attachment/detachment position of the tool magazine. A hand portion of the handling robot is provided with a force sensor, which can detect a load applied to the hand portion. Also, a control apparatus of the handling robot and a control apparatus of the machine tool are connected via a data cable capable of transmission and reception of information.

Abstract: The state measuring device includes a measurement section attached to the blade portion or to a vicinity of the blade portion to measure a state of the blade portion, an AD converter attached to the cutting tool to acquire a measurement value measured by the measurement section at a predetermined sampling rate and perform AD conversion on the measurement value, a transmission section which transmits, on each acquisition of the measurement value from the AD converter, the acquired measurement value using digital wireless communication, and a monitor device provided outside the cutting tool. The monitor device includes a reception section which receives the measurement value transmitted by the transmission section, and a data management section which causes a display section to display the measurement value and causes a storage section to store the measurement value on each reception of the measurement value by the reception section.