Abstract: Friction Stir Welding (FSW) devices and methods for simultaneously welding both sides of an arcuate joint are described. The FSW method includes the step of operating a FSW tool and an anvil on the exterior surface of the joint and simultaneously operating another FSW tool and anvil on the interior surface of the joint. The anvils are positioned in a juxtaposing manner to the FSW tools, and move in tandem with the FSW tools, thus providing a supporting force to the FSW tools during their operation.

Abstract: A soldering assembly comprises a heater, a lock member, and a bias member. The lock member is moveable relative to the heater, includes a ramp feature, and is configured to receive a tip or a tip holder. The bias member is configured to urge movement of the lock member away from a distal segment of the heater.

Abstract: A process for providing an improved hermetically sealed capacitor which includes the steps of applying a solder and a flux to an interior surface of a case; flowing the solder onto the interior surface; remove flux thereby forming a flux depleted solder; inserting the capacitive element into the casing; reflowing the flux depleted solder thereby forming a solder joint between the case and the solderable layer; and sealing the case.

Abstract: To provide a target device that can easily be reused in which the amount of gas discharge is small. The present invention is a target device including a backing plate and a target plate that is fixed to the backing plate with a metal brazing material, in which a protective film made of a TiN thin film in which a proportion of (111) plane is at a maximum is formed on an exposed portion of the backing plate. The discharge amount of gas is small, and the brazing material that adheres when fixing the target plate can be easily peeled off.

Abstract: A device includes a vacuum nozzle, a driver, a measuring unit, and a controller. The nozzle lifts and holds a photoelectric element having a first electrode and a second electrode. The driver drives the nozzle to press the photoelectric element onto a substrate having a soldering pad and a contact, such that the second electrode is electrically connected to the soldering pad via a layer of conductive glue. The measuring unit measures a resistance across the first electrode and the contact of the substrate when the photoelectric element is pressed onto the substrate. The controller controls the driver to drive the nozzle to keep pressing the photoelectric element harder and harder into the substrate until the resistance stops decreasing, that is, when the layer of conductive glue is at its thinnest.

Abstract: The invention relates to a friction stir welding apparatus for joining workpieces 1, 2, having a welding pin 3, which is rotatable about its center axis 9 by means of a drive, and having at least one clamping apparatus for clamping the workpieces 1, 2 to be joined, characterized in that the clamping apparatus comprises at least two clamping elements 10, 11, which respectively have an undercut guideway 12, the guideways 12 being arranged parallel to one another and parallel to a joining region 8, in that between the clamping elements 10, 11 is arranged a sliding element 13, which is secured by the guideways 12 against the workpieces 1, 2 and is translatorily displaceable along the guideways 12, and in that the sliding element 12 is provided with an opening 14 for the lead-through of the welding pin 3, and further relates to a method for friction stir welding, using the above-stated apparatus.

Abstract: The invention relates to a method for building cylindrical structures, preferably made of metal, on the basis of the construction methods referred to as “a method which begins the assembly by the top structure”, which provides high levels of safety in the various steps to be carried out. The method uses a shaping device for shell sheets, at least one stationary cabin for vertically aligning and welding sheets, movable cabins for horizontally welding the inside and outside, and supporting base devices which in combination provide a safe and comfortable working environment for the operators, as well as greater speed and finish quality for the tank to be built, even under harsh weather conditions.

Abstract: A welding fixture clamp includes a stationary clamp jaw having a first guide surface and a pivotal clamp jaw having a second guide surface. The second guide surface slides relative to the first guide surface as the pivotal clamp jaw pivots about the pivot axis. Side shields are secured to one of the pivotal clamp jaw and the stationary clamp jaw to extend over the other one of the pivotal clamp jaw and the stationary clamp jaw to shield the first guide surface and the second guide surface from weld splatter and debris. A pivot pin connects the side shield to the stationary clamp jaw and operatively connects the pivotal clamp jaw to the stationary clamp jaw to pivot about the pivot axis.

Abstract: A disposable apparatus with a plurality of preloaded pins such as solder columns, micro-coil springs, or other cylindrically shaped metallic parts (solder columns, et al.) in an array pattern is provided for aligning and dispensing onto a column grid array (CGA) substrate. The apparatus is comprised of a carrier plate with a pattern of holes that is covered by a layer of sacrificial adhesive tape with sufficient tackiness to retain, position and hold an array of solder columns, et al. Alignment features on the bottom of the carrier plate plugs into a jig alignment fixture that precisely positions the solder columns, et al. over a CGA substrate. After peeling away the sacrificial adhesive tape from the apparatus, the payload of solder columns, et al. detaches and transfers by gravity onto a pattern of metal pads on the CGA substrate, without the use of vacuum or vibration.

Abstract: A process for manufacturing a device comprising at least a support and a component, joined together by at least one braze, includes a brazing operation which is carried out starting from a metal oxalate. Advantageously, it is a silver oxalate or a mixture of silver and copper oxalates, the component and/or the support being covered with a film comprising gold or copper in contact with said braze and the component possibly being a power component.

Abstract: A method of assembling a light fixture includes positioning a first and a second portion of a light fixture adjacent one another. The method includes applying a brazing material between these portions and fastening the portions together with a coupling device, wherein one or more gaps are formed therebetween the portions. The method includes pre-heating the portions and the brazing material to a first temperature and placing them into a molten salt bath, wherein the brazing material flows into the gaps. The method includes cooling the fastened portions to form a metallurgical bond therebetween. The fixture includes a base, a manifold chamber, and a plurality of structures extending from a second surface of the base to the chamber, which defines a manifold therein. The base includes one or more openings extending therethrough. Each structure defines a wire way that is in communication with the chamber and one or more openings.

Abstract: An ultrasonic welding method for conductors is provided that is capable of suppressing occurrence of insufficient weld strength and a separation which may occur when terminals of a wires are ultrasonically welded. In a wire arranging step, wires are arranged in accordance with a predetermined arrangement. In a conductor moving step, conductors (2) are pressed in a predetermined direction by a grinding jaw (12), and thereby relative positions among the conductors (2) are changed. In a first ultrasonic welding step, ultrasonic welding is performed on the conductors (2) in a state of being pressed by the grinding jaw (12). In a second ultrasonic welding step, the pressing applied by the grinding jaw (12) is released, and ultrasonic welding is performed on the conductors (2).

Abstract: Systems and methods for transferring a micro device from a carrier substrate are disclosed. In an embodiment, a mass transfer tool manipulator assembly allows active alignment between an array of electrostatic transfer heads on a micro pick up array and an array of micro devices on a carrier substrate. Displacement of a compliant element of the mass transfer tool manipulator assembly may be sensed to control alignment between the array of electrostatic transfer heads and the array of micro devices.

Abstract: A member support of a friction stir spot welding device has a backing piece having a bearing surface that contacts work-pieces, and a supporting body that supports the backing piece such that the backing piece tilts with the tilting of the work-pieces, which is in contact with the bearing surface. In the backing piece, the amount of change in the position of the bearing surface on the extension line of the central axis of rotation between a state in which the bearing surface is in a reference state perpendicular to the central axis of rotation of a rotary tool and a state in which the bearing surface tilts in response to the tilting of the work-pieces, is less than or equal to a predetermined embedding amount with which the shoulder part of the rotary tool is embedded in the work-pieces.

Abstract: A method for manufacture of an inductive sensor, wherein coils are placed on both sides of a support plate surrounding an opening of the support plate, and the support plate with the coils is inserted into a housing. A sleeve is inserted through a first cavity of the housing through the opening of the support plate into the housing. In order to achieve a secure and temperature independent joint between the sleeve and the housing, the sleeve (5) is welded with the housing (2).

Abstract: A joining apparatus for joining together structural components of an aircraft, includes positioning means for holding the structural components to be joined in a defined desired position, in which the structural components can be fixedly joined together by means of a joining device that can be moved relative to the structural components by way of guiding means, wherein the positioning means encompass a formative frame structure that is detachably secured to the structural components to be connected along the joining edges outside in the edge area, and serves as a guiding means for the joining device movably secured hereupon.

Abstract: A method for packaging a semiconductor device includes attaching a first array of solder material to a first surface of an interposer; bringing the first array of solder material into physical contact with a laminate; and initially bonding the interposer to the laminate by applying a first temperature and pressure gradient to the first array of solder material such that a melting temperature of the first array of solder material is not exceeded.

Abstract: A unitized assembly may comprise a fiber metal laminate and at least one additive layer. The fiber metal laminate may have non-metallic plies bonded to metallic plies and may include an innermost metallic ply. The at least one additive layer may be deposited onto the innermost metallic ply by friction stir welding.

Abstract: Automatic welding equipment includes a wave soldering machine including a tank, a plurality of first nozzles, a first pump, and a first guide plate. The tank has an opening. The first nozzles and melted solder are disposed in the tank. The first pump is disposed in the tank for jetting the solder via the first nozzles. The first guide plate is located at the opening and includes a first plate portion and a second plate portion. The first plate portion is located over the first nozzles and has a plurality of first holes for passed through by the solder jetted from the first nozzles. The second plate portion, connected to the first plate portion, guides the solder to flow out of the first holes. The solder guided by the second plate portion passes through second holes of the second plate portion and returns into the tank.

Abstract: Disclosed therein are an apparatus for and a method of welding a flange to a guide thimble tube in a nuclear fuel assembly. The automatic welding apparatus includes a welding unit located on an axially conveying line of a tube for welding a surface of the tube inserted thereinto and a surface of a flange, a flange supplying unit for supplying the flange at a tube inlet of the welding unit onto the axially conveying line, and a conveying unit mounted on the axially conveying line in such a way as to move the tube and the flange on the axially conveying line, so that they are inserted into and drawn from the welding unit.