Abstract: An improved apparatus and method of joining two metallic components prior to making a full seam weld is disclosed. A first inner structural metallic component has at least one neutral zone, an inner surface, an outer surface and an aperture located in the neutral zone. A second outer structural metallic component has at least one neutral zone, an inner surface, an outer surface and a dimple with a raised portion on the inner surface and a recessed portion on the outer surface. The method uses the steps of joining the first and second metallic components so that the first component outer surface and the second component inner surface are directly adjacent each other, and joining the two structural metallic components by forming a full seam weld between the two components.

Abstract: Upper and lower frames enclosing a peripheral edge of the supporting plate and each including a groove to receive a sealing member are preassembled through locking parts, and then fusion-bonded in the preassembled state. Accordingly, a waterproof effect and durability of the shelf assembly are improved.

Abstract: Disclosed is a whisker-formation resistant composition that is suitable for use as a lead-free soldering composition. The composition includes a fusible material and a matrix material that is aggregated with the fusible material. Typically the fusible material has a lower melting temperature than the melting temperature of the matrix material and has a coefficient of thermal expansion that is higher than the coefficient of thermal expansion of the matrix material. Also provided is a method of reducing the formation of whiskers adjacent solder that bridges a joint. The method includes the step of melting a fusible material adjacent the joint. A further step is solidifying the fusible material while establishing a static tensile stress tendency in the fusible material.

Abstract: Systems and methods for providing heat management solution. In one implementation, a heat spread or laminate is provided. The heat spreader or laminate includes a thermal expansion defining material such as Nickel-Iron alloy sheet or Molybdenum or Copper-Molybdenum alloy sheet or Copper-Tungsten alloy sheet or Copper-Graphite sheet or Graphite sheet with holes to contain high thermal conductive alloy such as Copper-Silver or Silver filler and high thermal conductive outer metal sheets such as Oxygen Free High Conductive copper. One of Oxygen Free High Conductive copper has corresponding hole patterns matched to the thermal expansion defining material sheets with holes. The thermal expansion layer with high thermal conductive filler is sandwiched between the high thermal conductive metal sheets.

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: A nickel-base composition is disclosed that includes: about 15 to about 20 wt % Co; about 10 to about 19 wt % Cr; about 2.5 to about 3.4 wt % Al; less than about 0.5 wt % Ta; less than about 1.0 wt % Mo; less than about 0.06 wt % Zr; less than about 0.04 wt % B; about 1.1 to about 1.5 wt % Nb; about 3.0 to about 3.9 wt % Ti; about 3 to about 5 wt. % W; about 0.03 to about 0.07 wt. % C; and balance Ni; wherein aluminum, titanium, niobium, and tantalum are present within the alloy in a combined amount of 9 to 14 atomic percent.

Abstract: A composite tube having a corrosion resistant member and a load-bearing member is provided. The corrosion resistant member is a Cu—Al alloy and has a wall thickness of at least 0.5 mm, while the load-bearing member is a Fe, Ni or Co based alloy having a wall thickness of at least 1 mm. The composite tube can be manufactured by conventional means like extrusion, rolling, welding etc.

Abstract: A method and apparatus for making chip assemblies is disclosed that prevent or reduce the cracking and delamination of ultra low-k dielectrics in the back-end-of-line in Si chips that can occur during the chip assembly process. The method and apparatus apply pressure to the top and bottom surfaces of a substrate during the chip bonding process so that the bending and warping of the assembled modules are reduced. The reduced bending and warping prevent or reduce the cracking and delamination of ultra low-k dielectrics.

Abstract: This invention relates to a percussion drill bit head for a percussion drilling apparatus, the drill bit head comprising a working surface and a plurality of super-hard buttons protruding from the working surface, the working surface having a hard area that is free of buttons and has Rockwell C hardness of at least 60 HRc. The invention further relates to a method of manufacturing a percussion drill bit head comprising a working surface and a plurality of buttons and a percussion drill bit assembly comprising a drill bit head according to the invention.

Abstract: Methods and apparatuses for passive jet blast deflection or the like. Use of the passive jet blast deflector permits the efficient dispersal of a fast moving local heat source into the environment through passive means while providing a high strength structure. The jet blast deflector system may include a first plate, a second plate, and a cellular core disposed between them adapted to allow cooling ambient air to flow through the cellular core, wherein the first plate, second plate, and core are all seamlessly coupled heat pipes that form a single vapor core to facilitate the spreading and even storing of thermal energy. An ejector plate may be attached to the top of the second plate to create a low pressure zone as the heat source passes over it, thereby pulling the ambient air through the cellular core, facilitating the removal the thermal energy from the system.

Abstract: A composite conductor for electric current comprises a core made of a first material and a jacket made of a second material, wherein the second material has a lower electrical conductivity than the first material. The second material is oxidation-resistant at temperatures up to at least 600° C., in particular at temperatures up to at least 800° C., in particular at temperatures up to at least 900° C. A fuel cell system comprises at least one fuel cell, to which a composite conductor according to the present invention is connected. A manufacturing method for a composite conductor comprises following steps: Provision of a core made of a first material and encasing the core by a second material having a lower electrical conductivity than the first material. The second material is oxidation-resistant at temperatures up to at least 600° C., in particular at temperatures up to at least 800° C., in particular at temperatures up to at least 900° C.

Abstract: A method for bonding a first part made of a composite to a second part to a predetermined dimension is disclosed. The method includes placing an insert into the first part, a first surface of the insert protruding beyond the predetermined dimension; machining the insert until the first surface is at the predetermined dimension; placing the second part on the insert; and fastening the second part via the insert. The use of an insert makes it possible to produce, with high precision, a reproducible assembly, which can still be dismantled.

Abstract: Disclosed is a solder bonding structure which is capable of retaining sufficient solder bonding strength and ensuring high bonding reliability even in severe environments having an extremely large temperature difference. In the solder bonding structure, an electronic component 4 is mounted on a main surface 1a of a substrate having an electrode section 2 and an insulating film 3, and the electrode section 2 and the electronic component 4 are electrically bonded to each other through a solder section 5, and a flux residue 6 exuded from the solder section 5 is present between the electronic component 4 and the insulating film 3. The flux contains an acrylic resin, an activating agent, and a thixotropic agent having a hydroxyl group. The glass transition point of the acrylic resin is not higher than ?40° C., or not lower than the softening temperature of the flux residue. The flux residue has a maximum value of 300×10?6/K or less of linear thermal expansion coefficient within a temperature range from ?40° C.

Abstract: The invention relates to a welded ball pin (10) including a shaft (14; 14?) on which a completely closed ball (12) is welded, wherein the shaft (14; 14?) is configured as a hollow cylinder and an inner wall of the shaft (14?) is provided with grooves (24) extending parallel to a rotation axis of the shaft (14?).

Abstract: The present document describes a composite material adapted to resist degradation by an erosive agent. The composite material comprises a steel base and crystals embedded in the steel base. At least 50% of the crystals have an elongated portion. Optionally, the composite material comprises an external surface for exposure to the erosive agent. At least 50% of the elongated portions are transverse to the external surface. A filler material is also described for forming the composite material on a ferrous surface by welding. The filler material comprises iron, carbon, boron, molybdenum and silicon. Methods are also described form forming the composite material.

Abstract: A method of manufacturing a magnet system (101, 201) for an electro-acoustic transducer (100, 200) comprising a magnet element (105, 205) and at least one pole plate (106, 107, 206, 207), is described, wherein the method comprises providing the magnet element (105, 205) having a first coating layer comprising a first corrosion resistant material, providing the at least one pole plate (106, 107, 206, 207) having a second coating layer comprising a second corrosion resistant material, and connecting said magnet element (105, 205) and said at least one pole plate (106, 107, 206, 207) by fusing the first coating layer and the second coating layer.

Abstract: Adjustable, elongate, beam-offset jig structure for assisting, under manual, or appropriate computer, control, in welding a pair of beam-end, column-interface components to the opposite ends of an elongate beam. The jig structure includes spaced, adjustable head-stock and tail-stock structures, each capable of holding such a component adjacent a beam end for adjustment to an infinite number of different, pre-weld angular-offset dispositions relative to such a beam end in order to accommodate planned horizontal and vertical beam offsets which will be encountered when such beams are installed in a building frame. A computer-controlled, robotic welder may be provided adjacent each end of the jig structure to implement appropriate welding when any and all offset angles have been jig-established.

Abstract: A garage door display and decorative article include a first closed cell foam layer having a thickness of at least 0.1 inches having a front face and a rear face. A rare earth metal magnet is fused to previously melted and presently solidified portions of the first closed cell foam layer on the rear face. A decorative piece is fused to previously melted and presently solidified portions of the first closed cell foam layer on the front face.

Abstract: A partially bonded brace bar assembly is provided according to an embodiment of the invention. A vibrating element adapted to vibrate about a bending axis (W, W?) is provided. The vibrating element has a high stress region (412). A brace bar (201 204) is bonded to the vibrating element using a partial bond (420). The partial bond (420) is formed only in the high stress region (412).

Abstract: An article in the form of one of a plate, a sheet, a cylinder, and a portion of a cylinder, which is adapted for use as at least a portion of a wear resistant working surface of a roll is disclosed. The article includes a metal matrix composite comprising a plurality of inorganic particles dispersed in a matrix material. The matrix material includes at least one of a metal and a metal alloy, wherein the melting temperature of the inorganic particles is greater than the melting temperature of the matrix material. A plurality of hard elements are embedded in the metal matrix composite. The wear resistance of the metal matrix composite is less than the wear resistance of the hard elements, and the metal matrix composite preferentially wears away when the article is in use, thereby providing or preserving gaps between each of the plurality of hard elements at a working surface of the article.

Abstract: An iron-chromium based brazing filler metal is provided which exhibits an excellent wetting behavior on a stainless steel base material. The brazing filler metal produces a brazed joint which exhibits high strength and good corrosion resistance. The brazing filler metal is suitable for brazing stainless steel and other materials where corrosion resistance and high strength is required. Typical examples of applications are heat exchangers and catalytic converters. The iron-chromium based brazing filler metal powder according to the invention comprises: between 11 and 35 wt % chromium, between 0 and 30 wt % nickel, between 2 and 20 wt % copper, between 2 and 6 wt % silicon, between 4 and 8 wt % phosporous, between 0-10 wt % manganese, and at least 20 wt % iron.

Abstract: This invention discloses a method, using pure niobium as a transient liquid reactive braze material, for fabrication of cellular or honeycomb structures, wire space-frames or other sparse builtup structures or discrete articles using Nitinol (near-equiatomic titanium-nickel alloy) and related shape-memory and superelastic alloys. Nitinol shape memory alloys (SMAs), acquired in a form such as corrugated sheet, discrete tubes or wires, may be joined together using the newly discovered joining technique. Pure niobium when brought into contact with nitinol at elevated temperature, liquefies at temperatures below the melting point and flows readily into capillary spaces between the elements to be joined, thus forming a strong joint.

Abstract: Disclosed is a sealing assembly for metal components, wherein the sealing assembly has an electrical insulating effect, and wherein the sealing assembly comprises a ceramic layer and a base brazing material disposed thereon, to which germanium is added. The addition of germanium advantageously ranges from 0.1 to 5.0 mol %, and preferably between 0.5 and 2.5 mol %. A particular embodiment provides for the use of a brazing material which additionally comprises silicon in the range of>0 to 2.5 mol %, and preferably between 0.1 and 0.9 mol %. Furthermore, a brazing material having a further addition of 10 to 40% by volume of Al2TiO5, and preferably between 20 and 30% by volume of Al2TiO5, has proven to be particularly suited for the sealing assembly.

Abstract: A method of manufacturing a semiconductor device is provided. A first bond of a first wire loop is formed. A wire is bonded through a ball to a lead or a chip electrode of a semiconductor chip to form a second bond of the first wire loop and a first bond of a second wire loop. A second bond of the second wire loop is formed. The ball provides a large bonding area, and thus, provides a strong bonding strength.

Abstract: A lead-free solder alloy which can be used for soldering of vehicle-mounted electronic circuits and which exhibits high reliability is provided. The alloy consists essentially of Ag: 2.8-4 mass %, In: 3-5.5 mass %, Cu: 0.5-1.1 mass %, if necessary Bi: 0.5-3 mass %, and a remainder of Sn. In is at least partially in solid solution in the Sn matrix.

Abstract: An easy and controllable method and system to attach a carbon nanotube to a scanning probe tip such as a scanning probe microscopy (SPM) tip using a focus ion beam (FIB) technique. The method and system includes selecting a carbon fiber by a Focus Ion Beam micromanipulator, picking up the carbon fiber with the nanotube tip, forming a slot on an SPM tip, and inserting the carbon fiber with the nanotube tip into the slot.

Abstract: An method for building multi-layer circuits without post process via fills is disclosed. The method includes aligning a first contact on a first substrate layer with a second contact on a second substrate layer; and fusion bonding the first contact to the second contact. A multilayer circuit is also disclosed. The multilayer circuit includes a first substrate layer including a first contact. The multilayer circuit also includes a second substrate layer including a second contact that is fusion bonded to the first contact such that the first and second contacts are aligned.

Abstract: The invention concerns a method to create fusion-integrated joints of workpieces, in which a workpiece area formed on a workpiece made from a TiAl alloy and a workpiece area formed on another workpiece made from a TiAl alloy or a different high temperature material are joined in a joint area using a joining additive, where the joining additive contains at least one of the elements gallium and indium. The invention also concerns a method to create a material deposit on a workpiece, in which a deposit material is applied to a workpiece area made from a TiAl alloy, where a fusion-integrated joint is produced between the deposit material and the workpiece area, where the deposit material contains at least one of the elements gallium and indium and a filler material.

Abstract: A Sn—Ag—Cu—Bi lead-free solder which can be used for soldering of vehicle-mounted electronic circuits and which has excellent resistance to heat cycles and mechanical strength is provided. The solder consists essentially of Ag: 2.8-4 mass %, Bi: 1.5-6 mass %, Cu: 0.8-1.2 mass %, and a remainder of Sn.

Abstract: A component adapted to an environment exposed to corrosive species such as chlorine, which component has a substrate and a coating on the substrate configured to shield the substrate from erosion and corrosion. The coating is formed and metallurgically bonded to the substrate by nickel vapor depositing and hot isostatic pressing or by surface brazing. The coating is manufactured to form a dense layer consisting of a protective material that substantially reduces corrosion rate under the presence of the corrosive species.

Abstract: This invention relates to a flame retardant polyamide composition comprising a semi-aromatic polyamide, a flame retardant system and a reinforcing agent, wherein the semi-aromatic polyamide comprises units derived from dicarboxylic acids comprising terephthalic acid and aliphatic dicarboxylic acids, and aliphatic diamines. In the semi-aromatic polyamide the aliphatic diamines consist of 10-70 mole % of a short chain aliphatic diamine with 2-5 C atoms and 30-90 mole % of a long chain aliphatic diamine with at least 6 C atoms; the dicarboxylic acids consist of 5-65 mole % aliphatic dicarboxylic acid and optionally aromatic dicarboxylic acid other than terephthalic acid and 35-95 mole % terephthalic acid; and the combined molar amount of terephthalic acid and the long chain aliphatic diamine is at least 60 mole %, relative to the total molar amount of the dicarboxylic acids and diamines.

Abstract: An example method of manufacturing a solid brazed laminate structure includes stacking a first lamina on a second lamina with an interfacial spacing between them, aligning mating portions of the first lamina and the second lamina, and introducing a braze material at least partially into the interfacial spacing to join the first lamina and the second lamina together. One example solid brazed laminate structure includes a lock assembly. Another example solid brazed structure includes a gear assembly.

Abstract: Devices and methods of welding dissimilar materials are contemplated in which an adaptor is used in an intermediate position between the dissimilar materials. Most preferred adaptors are manufactured by friction stir welding from two dissimilar materials that are identical or similar to the dissimilar materials to be welded together. Therefore, coupling of dissimilar materials in the field via the adaptors is greatly simplified as conventional welding methods can now be employed.

Abstract: One aspect is a device including at least two interconnected metal parts. The two interconnected parts are formed from metals with different melting temperature from the group consisting of the elements Pt, Pd, Ag, Au, Nb, Ta, Ti, Zr, W, V, Hf, Mo, Co, Cr, Ni, Ir, Re, Ru as well as alloys on the basis of at least one of those elements. The metal part with the lower melting temperature is fused onto the metal part with the higher melting temperature and both parts are friction-locked and/or form-locked with each other.

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: In an intermediate piece for connecting molded articles of manganese steel with carbon steel, in particular austenitic manganese steel casting frogs with standard rails, the intermediate piece is comprised of steel from the group of austenitic-ferritic duplex steels having a ferrite portion of <60 wt %. The method for connecting austenitic manganese steel castings with standard rails is characterized in that an austenitic-ferritic intermediate piece made of duplex steel comprising <60% ferrite is welded with the manganese steel casting and the standard rail.

Abstract: The invention relates to an installation for soldering or for heat-treating workpieces (1) under a protective gas atmosphere, comprising a workpiece transportation apparatus (2), comprising an entrance (3) into the installation and an exit (4) out of the installation, comprising a combustion-gas or heating-gas stream (B) which is conducted separately from the protective-gas stream (S) and brings the protective-gas stream (S) to operating temperature, and comprising an insulating means (5) which surrounds the installation. A considerable amount of energy is saved in that, according to the invention, the combustion-gas or heating-gas stream (B) and the protective-gas stream (S) have approximately corresponding heat capacities and can be conducted through the installation in counterflow. The invention also proposes a process which is favourable in terms of energy.

Abstract: A method of forming a structure by a material additive process, the method comprising the steps: providing a substrate having a surface, providing an interlayer on the surface which conforms to the surface of the substrate, forming a melt pool in the interlayer, the depth of the melt pool being less than the depth of the interlayer, selectively depositing a material within the melt pool, allowing the material to solidify, and applying heat and pressure to diffusion bond the material to the substrate.

Abstract: A method for producing a composite from at least two metal components that have perforations or openings, especially for producing a cooler or cooling elements or heat sinks that have at least one composite. The components are joined to each other to yield the composite by heating them to a process temperature while using a joining agent or joining surfaces defined by surface faces of the components. To produce components having complicated geometric shapes, thereby increasing their cooling capacity, at least a first component is not flat, and is joined to at least one flat or non-flat component to yield the composite.

Abstract: The invention concerns a heat exchanger and a method of producing thereof. The heat exchanger comprises a coolant housing with two opposing wide side walls and two header plates of an inlet air tank and an outlet air tank, respectively. The header plates are channel-shaped with longitudinal flanges extending over and being brazed to the wide side walls. Tubes extend in parallel through said housing between the two header plates, said tubes being brazed to apertures in said header plates. The coolant housing has two opposing narrow side walls tightly fitting said wide side walls and said header plates and defining together with these wide side walls and header plates a first coolant tank and a second coolant tank opposing the first one. Each air tank comprises a cowling tightly fitting and being brazed to one of said header plates each and having an air inlet and an air outlet, respectively.

Abstract: A steel has the following chemical composition (amounts in % by weight): 0.05-0.14 C, 8-13 Cr, 1-2.6 Ni, 0.5-1.9 Mo, 0.5-1.5 Mn, 0.15-0.5 Si, 0.2-0.4 V, 0-0.04 B, 2.1-4.0 Re, 0-0.07 Ta, 0-60 ppm Pd, remainder Fe and unavoidable impurities. The steel can be used effectively as a welding additive material and has outstanding properties at very high temperatures, in particular a good creep rupture strength/resistance and a good oxidation resistance.

Abstract: A solder alloy comprises Sn, Ag, Cu, and Mn and has a melting temperature of about 211 degrees C. A solder joint and solder process embody the solder alloy as well as solder balls and solder paste made therefrom to provide a solidified joint that includes three different intermetallic phases and a Sn metal phase. An exemplary Sn—Ag—Cu—Mn alloy consists essentially of about 3 to about 4 weight % Ag, about 0.80 to about 1.0 weight % Cu, and about 0.05 to about 0.15 weight % Mn, and balance consisting essentially of Sn.

Abstract: A foil for producing a metal honeycomb or catalyst carrier body, has an average surface roughness of more than 0.3 ?m (micrometers) on both surfaces in at least one measurement direction. Preferably, the foil is rolled and has an average surface roughness of more than 0.3 or 0.5 ?m, especially approximately 0.6 ?m, in the rolling direction and/or transverse thereto. The foil can have an oxide coating with a thickness between 60 and 80 or between 70 and 75 nm (nanometers) on both surfaces. Despite the roughness, an even thickness of the oxide coating with a tolerance of less than 10% or 5% is advantageous on both surfaces. The foil allows production of durable honeycomb bodies, especially for exhaust systems of internal combustion engines, requiring an exactly defined distribution and quality of compounds in the interior thereof. A honeycomb body and method of production using a foil, are also provided.

Abstract: A terminal platform comprising a first terminal block securable to a housing of the battery, a second terminal block configured to electrically connect to a terminal wire of the battery, and an insulating support electrically isolating the second terminal block from the first terminal block.

Abstract: A threaded weld fitting and a method of welding a threaded weld fitting to the tank wall of a water storage tank are provided. The threaded weld fitting comprises a body defining an aperture and having a facing surface configured to be positioned facing the tank wall. A female thread is formed along the aperture. A first beveled surface portion of the facing surface extends from an edge of the body. A landing surface portion of the facing surface extends from the first beveled surface portion toward a longitudinal axis of the aperture. A second beveled surface portion of the facing surface extends from the landing surface and to the female thread. The landing surface portion and the second beveled surface portion together define an open annular area positioned to receive a portion of a weld formed by welding the threaded weld fitting to the tank wall.

Abstract: A battery module includes an electrochemical battery cell having a pair of cell tabs and conductive interconnecting members having one or more interconnect extensions. The cell tabs are welded to different interconnecting members to form welded joints, and each interconnect extension is hemmed with respect to the cell tabs to overlap and reinforce the welded joint. The welded joint can be ultrasonically-welded, while the interconnecting member can have a generally U-shaped profile with side walls formed integrally with the interconnect extensions. A method of minimizing effects of a shearing stress in the battery module includes fusing a cell tab or tabs to the interconnecting member to form a welded joint, and then hemming an interconnect extension of the interconnecting member to form a hem seam overlapping the cell tabs. Fusing can include ultrasonically welding the cell tabs to the side walls or other suitable means.

Abstract: For fastening the contact strip (8) to the back electrode layer (4) of a photovoltaic module, the back electrode layer (4) is provided on its outer side with a tin-, copper- and/or silver-containing contact layer (12). Subsequently the contact strip (8) provided with solder (17) on the joining surface is connected to the back electrode layer (4) by soldering. The contact layer (12) causes good adhesion of the back surface encapsulation material (13) to be obtained. A barrier layer (11) prevents alloying of the tin-solder with the layers (9, 10) of the back electrode layer (4).

Abstract: A method to improve the impact resistance of a braze joint between a tungsten/carbide/cobalt substrate and a substrate including titanium or alloy thereof includes utilizing a brazing material including gold, nickel, and copper present in respective amounts to improve the ductility of the braze joint.

Abstract: A valve, in certain embodiments, includes a drive shaft configured to couple to a fluid control component and having an interlace material at the joint between the drive shaft and the fluid control component. A valve, in other embodiments, includes a fluid control component configured to receive a drive shaft and having an interlace material at the joint between the fluid control component and the drive shaft. A valve, in further embodiments, includes a drive shaft having a mechanical locking system and a fluid control component coupled to the drive shaft at a joint, wherein the spline aids in coupling the fluid control component to the drive shaft.

Abstract: A composition, a medical implant constructed from the composition, and a method of making the composition are described. The composition comprises a porous-coated substrate, the porous coating comprising a reticulated particle coating, the coating being formed by fusing the reticulated particle to the surface, preferably by sintering.