Abstract: A method of manufacturing a highly insulating three-dimensional (3D) structure is provided. The method includes depositing a first layer of hollow microspheres onto a base. The hollow microspheres have a metallic coating formed thereon. A laser beam is scanned over the hollow microspheres so as to sinter the metallic coating of the hollow microspheres at predetermined locations. At least one layer of the hollow microspheres is deposited onto the first layer. Scanning by the laser beam is repeated for each successive layer until a predetermined 3D structure is constructed. The 3D structure includes a composite thermal barrier coating (TBC), which may be applied to a surface of components within an internal combustion engine, and the like. The composite TBC is bonded to the components of the engine to provide low thermal conductivity and low heat capacity insulation that is sealed against combustion gasses.

Abstract: A method of bonding a first component (10) comprising a titanium-containing alloy to a second metal component (12), wherein a coating layer (14,16) is applied to each of the first and second components in the region to be bonded. The coating layers (14,16) comprise a precious metal. An intermediate metallic layer (18) is interposed between the coating layer (14) of the first component and the coating layer (16) of the second component. The respective coating layers are held in contact with the intermediate layer (18) and the coating layers and the intermediate layer are heated to initiate melting of at least one of said layers so as to form a bond between the first and second components by brazing.

Abstract: A hydraulic fluid filler for a motor vehicle transmission includes a set of holes through which respective springs of a spring pack extend. The filler is generally positioned adjacent to a single retainer ring or between two retainer rings associated with the spring pack. In some implementations, the filler floats between the two retainer rings, while, in other implementations, the filler is securely attached to one or both of the retainer rings. The filler reduces the volume of one of two cavities, chambers, or cylinders positioned on opposite sides of a piston that selectively interacts with a clutch assembly to engage or disengage the clutch assembly. Reducing the volume of one of the cavities, chambers or cylinders effectively reduces the time period the spring pack is then able to apply a restoring force to the piston.

Abstract: A clad welding method, which can prevent the occurrence of incomplete fusion, and can cover the surface of a base material over a wide range with a weld metal, while suppressing the dilution of the weld metal, by use of a relatively simple technique, is provided. For this purpose, a welding heat input is increased at a location where one end (10a) of a preceding weld bead (10) and the other end (20b) of a succeeding weld bead (20) overlap, as compared with a welding heat input at a location where the preceding weld bead (10) and the succeeding weld bead (20) do not overlap, to produce a deep penetration portion (12a) involving locally deep penetration (12).

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 pressure sensor (1) is specified, comprising a housing (2), a membrane (3), which forms with the housing (2) a chamber (4) closed off toward the outside, and a filling opening (6) for filling the chamber (4) with a fluid medium (5). The filling opening (6) is closed by means of a soldering or welding closure (7, 8). Furthermore, a method for producing a pressure sensor (1) is specified, wherein a housing (2), which together with a membrane (3) forms a chamber (4), is provided, the chamber (4) is filled with a fluid medium (5) through a filling opening (6), and the filling opening (6) is subsequently closed by means of soldering or welding.

Abstract: In various embodiments, joined sputtering targets are formed at least in part by spray deposition of the sputtering material and/or welding.

Abstract: A heat-conducting system has a heat-generating first component part and a second component part for dissipating the heat of the first component part, the two component parts being situated in operative connection to each other using a heat-conducting medium. The heat-conducting medium includes metal constituents, particularly metal ions, which are situated in a carrier material, especially in a polymer matrix; and the heat-conducting medium at an end state has dendrites made of the metal constituents, which are connected to the contact surfaces of the two component parts in a heat-conducting manner.

Abstract: A method for inhibiting electromigration-induced phase segregation suitable for solder joint configurations used in a chip package is described as following. First, a chip package including a wiring board, a chip and numbers of solder joints is provided, wherein the chip is disposed on the wiring board, and the solder joints are disposed between the chip and the wiring board to electrically connect the chip to the wiring board. Next, a first current and a second current are alternately applied to a side of the solder joints, wherein flowing directions of the first current and the second current are opposite. The current density of the first current is 103˜105 A/cm2, and the current density of the second current is 103˜105 A/cm2.

Abstract: A wear insert comprised of cemented metal carbide is welded to a workpiece made of steel or cemented metal carbide without causing fracturing of the carbide or creating residual stresses that reduce the impact resistance of the part. The part is fabricated using a microwave sintering process prior to welding.

Abstract: A welding set and a welding method that suppresses the unnecessary magnetization of a permanent magnet member by a welding current when welding one metal member including a permanent magnet member and the other metal member together are obtained. The welding set is provided with a work retaining part 3 that retains a work 14; a pressure device 4 located over the work retaining part 3 with a work-providing space interposed; a first welding electrode 8 mounted on a moving part 4a of the pressure device 4; a second welding electrode 10; and a welding transformer 11 that supplies a welding current to both of the welding electrodes 8, 10. Both of the welding electrodes 8, 10 are located on one end side of the work 14 with respect to one metal member and the other metal member respectively, as well as are located so that there is no permanent magnet member 18 between respective abutment terminal of one metal member and the other metal member.

Abstract: The present invention aims to provide such a joint structure of a wound coil 1 and an IC chip 2 for a noncontact RFID device that is able to yield electrically and mechanically excellent connection, employing the wound coil 1, which is made by winding copper electric wire, with small variance of the electric resistance as an antenna coil for the noncontact RFID device, also by making use of such IC chips that their joint terminals 3 are covered with such metallization of the gold outermost layer 3a that is not liable to degradation during storage; and aims to provide such a method of joining the wound coil 1 and the IC chip 2 for the noncontact RFID device that is able to make said joint structure with ease and certainty, through selecting a direct joining process low in production cost as the joining method of the two, also through improving the process.

Abstract: A method for inhibiting electromigration-induced phase segregation suitable for solder joint configurations used in a chip package is described as following. First, a chip package including a wiring board, a chip and numbers of solder joints is provided, wherein the chip is disposed on the wiring board, and the solder joints are disposed between the chip and the wiring board to electrically connect the chip to the wiring board. Next, a first current and a second current are alternately applied to a side of the solder joints, wherein flowing directions of the first current and the second current are opposite. The current density of the first current is 103˜105 A/cm2, and the current density of the second current is 103˜105 A/cm2.

Abstract: The invention relates to a method for producing an electronic module (2) comprising a printed circuit (4) board (3), at least one first type of component (5), and a second type of component (6), said method comprising the following steps: solder is placed on the board; the first type of component is positioned; the solder is melted in order to solder the first type of component; the second type of component is positioned in such a way that it extends above the first type of component and has tongues (7) supported on the board by means of solder; and the solder is melted in order to solder the second type of component.

Abstract: A method for simultaneously brazing adjacent conductor joints comprises the steps of arranging at least two pair of conductor joints in a row placing a brazing compound between the pairs of joints desired to be electrically connected placing a conductive spacer between the pairs not to be brazed and passing an electrical current through the row of conductors until the brazing compound melts joining the conductor joints. The spacer can then be removed thereby maintaining the proper spacing between the pairs of brazed conductor joints. The multiple rows of conductor joints can be arranged adjacent one another so that they can be moved between brazing electrodes sequentially thereby allowing a continuous brazing operation of multiple rows of conductor joints. The brazing compound may be a continuous ribbon of brazing compound which extends between the multiple rows of conductor joints.

Abstract: An exhaust gas filter for cleaning an exhaust gas of an internal combustion engine includes at least one strip-shaped filter layer made of a material through which a fluid can at least partly flow. The filter layer has a length in a longitudinal direction and a width in a transverse direction. The filter layer has a metallic reinforcing region at least in a partial region. The metallic reinforcing region has a width and a length. The width of the reinforcing region is less than the width of the filter layer and/or the length of the reinforcing region is less than the length of the filter layer. A method for producing a filter layer for an exhaust gas filter is also provided.

Abstract: A method and apparatus is disclosed for fabricating a dry cell storage battery from a plurality of dry cells by soldering a battery strap to terminals of adjacent dry cells in a battery pack. A resistance heat solder apparatus is provided for soldering a joint defined by an end portion of a battery strap and a terminal of a dry cell, so that adjacent dry cells in the battery pack are in physical and electrical contact. Terminal probes, connected across the secondary coil of a step-down transformer, are used to make contact with the joint to be soldered for applying a voltage across the joint. Terminal probes have contoured tips. A preferred embodiment provides terminal probes which are contoured to be a mirror image of the contour of the joint where the particular terminal probe makes contact with the solder joint. Application of a voltage across the joint provides a collimated current flow path through the joint. An intense heat is created within the joint by the current flow.

Abstract: The present invention is directed to an apparatus and a method for brazing work pieces together and which eliminates the disadvantages associated with conventional apparatus currently in use for brazing parts together. In a preferred embodiment of the invention, the brazing apparatus comprises an electric connector for connecting to an electrical power source; at least two electrodes adapted for attaching to and providing electrical contact with the work pieces to be brazed together; means for converting the electric power being directed from the electrical power source into a low voltage, high current electric flow directed to the work pieces; and a control system for controlling the brazing operation. The brazing apparatus further comprises means for automatically controlling the time duration of the brazing operation and means for monitoring and automatically controlling the brazing temperature being generated along the interface between the work pieces.

Abstract: A soldering flux includes a resin in an aqueous composition. The flux can also include an activating agent and a surface-active agent that promotes surface wetting. The flux can be used to coat circuits and a printed circuit board. The resin can be non-acidic and/or in an emulsified form.

Abstract: The invention concerns a method for assembling electroconductive pass by electric current heating. Said method is characterised in that it consists in moving forward electrodes (10, 20) with different polanties, towards the parts (30, 40) to be assembled, and in contacting said electrodes with at least one of the pans (30) to be assembled, current being applied to said electrodes (10, 20). Thus, the electroconductive pants (30, 40) are locally heated and assembled by the current flowing through them to pass from one electrode to the other.

Abstract: A seat frame assembly of a motorcycle has upper and lower pipes made of an aluminum alloy and having a rectangular cross-sectional shape. The upper and lower pipes have front ends constructed as joints, and solid spacers made of an aluminum alloy and having a cross-sectional shape substantially identical to the rectangular cross-sectional shape of the pipes are fitted in the joints. Flat side walls of each of the joints are sandwiched between flat electrodes of a resistance welding machine, and pressed and heated so as to be crimped on the spacer while an electric current is flowing between the flat electrodes.

Abstract: A method of brazing a strob insert to the trailing edge of a slot in a strob circular saw blade, the strob insert having first and second, opposed, substantially parallel surfaces, the first surface of the strob insert to be brazed to the edge, comprises the steps of placing the strob insert on an electrode with the second surface of the strob insert in contact with the electrode in heat transfer relationship therewith; applying brazing paste to the first surface of the insert; positioning the electrode so that the first surface of the insert is in a brazing position relative to the edge; and passing an electrical current through the electrode to resistively heat the electrode to a temperature sufficient to cause brazing of the first surface of the strob insert to the edge.