Abstract: A method of making a turbomachine part, wherein the can include machining a blank into a base having blades extending therefrom, the blades defining a channel therebetween. The method can also include forming a bridge in the channel between the blades, and forming a cover on the tops of the blades and over the channel, such that the base, the blades, and the cover form a single substantially homogenous turbomachine part once the bridge is removed.

Abstract: A pin for allowing material having adhesive properties to adhere thereon, the pin comprising: a shaft having a longitudinal axis, a distal end and a proximal end opposite to the distal end; and a first tapered portion disposed on the longitudinal axis of the shaft, the tapered portion tapering from a first circumference to a second smaller circumference in a direction toward the proximal end of the shaft.

Abstract: The invention relates to a soldering work piece made of aluminium and/or aluminium compounds, to a soldering method, in addition to a heat exchanger soldered in said manner. One surface of the soldering work piece is provided with an artificially applied oxide layer.

Abstract: An assembly (10) that can be both joined and parted by temperature processing. A parting member (20) captured between two members of the assembly exhibits a state change as a function of temperature such that the two members can be joined with a meltable joining material (18) at a joining temperature, operated at an operating temperature lower than the joining temperature, and then separated at a parting temperature higher or lower than the operating and joining temperatures as a result of a parting force caused by the state change of the parting member. In one embodiment, the parting member has a coefficient of thermal expansion higher than a coefficient of thermal expansion of the assembly members such that differential thermal expansion causes the parting member to expand across the interface (16) between the members to generate the parting force.

Abstract: A swelling element packer is made with internal rings that are either split or scrolled. After the swelling element is built on a temporary mandrel a longitudinal seam of a variety of designs is cut through the element. This allows the rapid deployment of the element on the tubular that will be a part of a string and will serve as the final mandrel. The assembly is then magnetic pulse welded or crimped so as to urge the open ends of the rings to move toward each other and become secured to each other and further opening the possibility of attaching parts on the ring itself to the underlying tubular by displacing or otherwise removing the swelling material that was between the ring and the final mandrel when the magnetic pulse process began. The rings can be embedded wholly within the element or can extend beyond the opposed ends or combinations of the two.

Abstract: Exemplary embodiments of the invention provide a side dam for a continuous metal casting apparatus having elongated opposed casting surfaces forming a casting cavity. The side dam has an elongated upstream part and an elongated downstream part that are mutually laterally pivotable, and a smooth metal-contacting side surface extending continuously from an upstream end to a downstream end of the side dam. The surface has regions thereof formed on the upstream part and the downstream part. Mutual pivoting of the upstream part and the downstream part of the side dam enables the regions of the smooth metal-contacting side surface to be moved out of mutual coplanar alignment. The side dams can therefore be used to form either a convergent or divergent casting cavity to assists the casting procedure and to enhance the properties of the cast article.

Abstract: A motor vehicle car body framing apparatus for use at a welding station, the apparatus including a gate having a frame structure and a plurality of tooling members carried by the frame structure for use in positioning components of the vehicle body at the welding station for welding. The tooling members are mounted on the frame structure by a plurality of mounting brackets. Each mounting bracket includes a base member mounted on the frame structure and a riser mounted on the base and mounting a respective tooling member. The riser is fixedly mounted on the base by a single central fastener bolt which may include a reduced diameter portion sized to break away in response to predetermined impact against the riser. Each mounting bracket further includes means defining a triangulated mounting interface between the base and the riser arranged in concentric relation to the fastener bolt.

Abstract: In one aspect the invention provides a method of cleaning molten solder from the hot tip of a soldering iron that does not require a water-laden sponge. The hot tip of the iron is wiped against a block of dry open-celled melamine foam. The block is formed with an inclined through-hole that leads to the bottom of a receptacle holding the block. The hot tip is wiped against the foam surrounding an upper end of the through-hole, and the molten solder removed from the tip accumulates in the receptacle below.

Abstract: The invention relates to a friction stir welding head having a housing and a welding tool with a rotating welding pin and a rotating shoulder tool for welding workpieces which rest on a workpiece rest, with the shoulder tool, which rotates in synchronism with the welding pin, coaxially surrounding the welding pin. According to the invention, a first distance between a first laser rangefinder and a welding pin section 4a can be determined by means of the first laser rangefinder. This makes it possible to determine at least one change in the distance between the welding pin tip and the workpiece rest by means of a first laser rangefinder.

Abstract: A process of making useful shapes by joining of tungsten alloys. Joining of tungsten heavy alloys which are alloys typically made from W—Ni—Fe is used. These alloys are typically manufactured by liquid phase sintering. This leads to difficulty in producing large length to diameter ratio parts that have some significant weight (such as penetrators). A “brick and mortar” approach is employed wherein smaller segments of this alloy (low length to diameter ratio) are joined to together to produce a larger part with higher length to diameter ratio.

Abstract: To provide an infrared-shielding body sufficiently transmitting visible rays, having no half-mirror shaped appearance, requiring no large-scale apparatus when forming a film on a substrate, efficiently shutting invisible near-infrared rays with wavelength range of 780 nm or more, while eliminating a heat treatment at high temperature after film formation, and having a spectral characteristic such as transparency with no change of color tone. The starting material, which is a mixture containing a predetermined amount of a tungsten compound, is heated at 550° C. in a reductive atmosphere for 1 hour, then cooled to room temperature once in an argon atmosphere, thus producing powder of W18O49. Then, the powder, the solvent, and the dispersant are mixed, then subjected to dispersion treatment to obtain a dispersion solution. The dispersion solution and a UV-curable hardcoat resin are mixed to obtain a solution of fine particle dispersion of infrared-shielding material.

Abstract: A method for producing a pattern for the precision-cast representation of a component having a cavity is provided. In the method wherein the component is a turbine component having a cavity, the finished pattern comprises a core and an outer contour pattern, the outer contour pattern at least partially surrounds the core and at least partially defines the outer contour of the turbine component. The core is produced from a curable core material, which cures during the course of the method, and the outer contour pattern is produced from a material which can be burned or melted out. In this case, first the outer contour pattern is produced with a cavity corresponding to the cavity of the turbine component and subsequently the curable core material is filled into the cavity and cured to produce the core.

Abstract: A motor vehicle car body framing apparatus for use at a welding station, the apparatus including a gate having a frame structure and a plurality of tooling members carried by the frame structure for use in positioning components of the vehicle body at the welding station for welding. The tooling members are mounted on the frame structure by a plurality of mounting brackets. Each mounting bracket includes a base member mounted on the frame structure and a riser mounted on the base and mounting a respective tooling member. The riser is fixedly mounted on the base by a single central fastener bolt which may include a reduced diameter portion sized to breakaway in response to predetermined impact against the riser. The interface between the riser and the base comprises a plurality of contact points arranged in concentric relation with respect to the fastener bolt.

Abstract: Catalysts containing 30 weight percent or more platinum have surprisingly been discovered to possess superior stability and activity for catalyzing combustion reactions. The addition of rhenium improves catalyst performance in fuel lean conditions but has undesirable effects in fuel rich conditions. The invention provides integrated combustion microreactors, chemical systems utilizing these integrated combustion microreactors, methods of combustion, and methods of providing heat to endothermic reactions in integrated combustion microreactors.

Abstract: A transducer configured for use with a manual wire bonding machine includes a body portion including an end portion, the end portion defining a bonding tool aperture configured to receive at least a portion of a bonding tool. The transducer also includes a first tightening mechanism for securing a ball bonding tool in the bonding tool aperture, and a second tightening mechanism for securing a wedge bonding tool in the bonding tool aperture. The first tightening mechanism is distinct from the second tightening mechanism.

Abstract: A method for forming solder bodies on a substrate includes: positioning a first mask plate, which is formed with at least one first through-hole, on the substrate; filling the first through-hole with a first solder paste so as to form a first solder body on the substrate; positioning a second mask plate, which is formed with at least one second through-hole and at least one recess spaced apart from the second through-hole, on the substrate in such a manner that the first solder body is received in the recess; and filling the second through-hole with a second solder paste so as to form a second solder body on the substrate.

Abstract: A spindle head for performing friction stir welding includes concentric spindle shafts driven by stacked, coaxial motors contained within a spindle housing. The coaxial arrangement of the motors results in a more compact package. Each of the motors is concentrically arranged around one of the spindles by directly connecting a rotor of the motor to a spindle shaft. The stators of the motors are mounted on the housing and are concentrically arranged around the concentric spindle shafts.

Abstract: An object of the present invention is to provide a method for producing a composite material that can prevent a powdered additive to be mixed from scattering and control a quantity of the additive dispersed in the composite material. A method for producing a composite material in which an additional material different from a base material is dispersed into a part of the base material comprises the steps of providing a wire rod formed by applying a metallic film to the additional material to be dispersed or by stuffing a metallic tube with the additional material to be dispersed, fixing the wire rod on a surface or into an inside of the base material, and applying stirring along the fixed wire rod with a tool for friction stirring to disperse the additional material into the part of the base material.

Abstract: A bonding structure for a container member is disclosed. The container member has an opening and a covering member for covering the opening. The container member and covering member are abutted with each other and bonded by a friction stir welding operation. The bonding structure for the container and covering members comprises a bonding portion and a backing member. The bonding portion of the container member and the covering member is formed by inserting a friction stir welding tool into an abutting portion of the container member and the covering member. The backing member is provided for obstructing a plastic flow of materials for the container member and the covering member when the friction stir welding operation is performed. The backing member is disposed adjacent to the bonding portion, at a side of the abutting portion that is opposite to an inserting side of the friction stir welding tool.

Abstract: The present invention provides a previously unattainable compact and high thrust electromagnetic stirrer coil, that is, an electromagnetic stirrer coil for stirring molten steel in a mold by electromagnetic force, in which electromagnetic stirrer coil a space factor of the yoke sectional area (?) with respect to an inside area in a vertical cross-section of said electromagnetic stirrer coil is 0.5 to 0.9 and a yoke width B is 100 mm to 300 mm. Preferably, a magnetomotive force F of said electromagnetic stirrer coil divided by the yoke width B, that is, a value of F/B, is 800 kAT/m or more.