Abstract: This invention relates to the development of method for creating pattern on any metal surfaces used for structuring and decorative purposes by impression with the aid of heating. The method of the present invention can be modified to suite any industrial manufacturing processes.

Abstract: A semiconductor device includes a board, a semiconductor element mounted on one of main surfaces of the board, a plurality of passive elements provided in the vicinity of the semiconductor element, and a heat radiation plate mounted above the board and connected to a rear surface of the semiconductor element via a heat conductive material. A surface roughness of a surface of the heat radiation plate which surface comes in contact with the heat conductive material is non-uniform at a whole of the surface.

Abstract: There is provided a method for fabricating a dual microstructure component that may in turn be machined to fabricate a rotary element such as an impeller characterized as capable of withstanding high heat conditions for use in a gas turbine engine. The method provides a nickel based superalloy suitable for application of an impeller in a gas turbine engine. The bore region is manufactured having a grain size finer than ASTM 10.0 and the body region is manufactured having a grain size coarser than ASTM 7.0. The bore region and the body region define a dual microstructure and an interface.

Abstract: A flanged plate (1) for a rolling-lobe air spring has on its rounded portion an annular, closed, concave, rounded holding recess (13) which has a circular arcuate shape. The plate is provided with the recess before surface treatment. A correspondingly shaped holding bead (16) in the upper flanging tool (3) engages in this holding recess and form-tightly holds the tool (3) and the flanged plate (1). In this way, sharp-edged holding grooves, which can damage the surface of the flanged plate, are unnecessary. The flanging method, the flanging device, the flanged plate and the rolling-lobe air spring provided with a flanged plate of the above type are described.

Abstract: A method for simultaneously laser shock peening opposite laser shock peening surfaces on opposite sides of an article, such as a gas turbine engine airfoil, with varying thickness using oppositely aimed laser beams and varying surface fluence of the laser beams over the laser shock peening surfaces as a function of the thickness of the article beneath each one of a plurality of laser shock peened spots formed by the beams on the surfaces. The fluence may be equal to the thickness multiplied by a volumetric fluence factor, the volumetric fluence factor being held constant over the laser shock peening surface. The volumetric fluence factor may be in a range of about 1200 J/cm3 to 1800 J/cm3 and more particularly about 1500 J/cm3. Laser beam energy may be varied with a computer program controlling firing of the laser beam.

Abstract: The surface of a material is textured and crystallized in a single step by exposing the surface to pulses from an ultrafast laser. The laser treatment causes pillars to form on the treated surface. These pillars provide for greater light absorption. The crystallization of the material provides for higher electric conductivity and changes in optical properties of the material. The method may be performed in a gaseous environment, so that laser assisted chemical etching will aid in the texturing of the surface. This method may be used on various material surfaces, such as semiconductors, metals, ceramics, polymers, and glasses.

Abstract: Conventionally, cavities and cracks are filled with a solder metal which forms brittle phases with a subsequently applied coating, which have a negative effect on the mechanical properties. According to the invention, the components which form brittle phases are removed from the solder metal. The above is achieved, whereby a second material is applied which reacts with said component and which is removed again with the brittle phases, before the coating.

Abstract: Embodiments of the invention provide electrochemical analyte sensors having elements designed to modulate their electrochemical reactions as well as methods for making and using such sensors.

Abstract: A metal plate for producing a flat tube including a metal body having a joint portion, first and second flat wall forming portions connected by the joint portion, reinforcing wall forming portions projecting from the first and second flat wall forming portions and extending in a longitudinal direction of the first and second flat wall forming portions, and side wall forming portions projecting from opposite side edges of the metal body, respectively. The joint portion has a ridge which makes the joint portion thicker than the first and second flat wall forming portions. The ridge, the reinforcing wall forming portions and the side wall forming portions are projecting in a same direction. The metal body bends into a hairpin shape at boundaries formed between the ridge of the joint portion and the first and second flat wall forming portions.

Abstract: A catalyst precursor resin composition includes an organic polymer resin; a fluorinated-organic complex of silver ion; a monomer having multifunctional ethylene-unsaturated bonds; a photoinitiator; and an organic solvent. The metallic pattern is formed by forming catalyst pattern on a base using the catalyst precursor resin composition reducing the formed catalyst pattern, and electroless plating the reduced catalyst pattern. In the case of forming metallic pattern using the catalyst precursor resin composition, a compatibility of catalyst is good enough not to make precipitation, chemical resistance and adhesive force of the formed catalyst layer are good, catalyst loss is reduced during wet process such as development or plating process, depositing speed is improved, and thus a metallic pattern having good homogeneous and micro pattern property may be formed after electroless plating.

Abstract: A wear resistant casting and method of fabrication thereof, the casting comprising inserts embedded in a matrix; each insert having a form such that a ratio A/B in any mutually perpendicular section that passes through the centre of mass of the insert is comprised between 0.4 and 2.5, and a distance C between two insert is at least two times smaller that a width thereof; the inserts forming at least one grid.

Abstract: The present invention is directed to a method of polishing a minimum spangle aluminum-zinc alloy hot-dip coating applied to sheet steel to provide a polished hot-dip coating having a continuous, consistent surface appearance suitable for use in an unpainted condition.

Abstract: Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing these metal sheets and plates are disclosed herein. In an embodiment, there is provided a transportation vessel that includes at least one metal product having at least one surface that is substantially grooved, wherein the substantially grooved surface forms a riblet topography, the riblet topography including a multiplicity of adjacent permanently rolled longitudinal riblets running along at least a part of the surface, and wherein the riblet topography is coated with at least one coating sufficiently designed and applied to preserve the riblet topography. In an embodiment, the multiplicity of adjacent permanently rolled longitudinal riblets results in a friction-reducing textured surface. In an embodiment, metal product is used in fabricating at least a portion of an aircraft. In an embodiment, metal product is used in fabricating at least a portion of a rotor blade.

Abstract: A component having a ceramic base the surface of which is covered in at least one area by a metalized coating, the ceramic base being spatially structured and the partial discharge resistance between at least two layers of a metalized structure produced from the same or different materials and between the layer of a metalized structure and the ceramic being <20 pC.

Abstract: A metal sheet at least part of which is embossed with an embossing pattern that includes undulations which are mutually arranged closely adjacent to each other so that in use egress of fluid from the plane of the sheet is omnidirectionally controlled.

Abstract: The present invention relates to materials, methods and apparatuses for performing imprint lithography using amorphous metallic materials. The amorphous metallic materials can be employed as imprint media and thermoplastic forming processes are applied during the pattern transfer procedure to produce micron scale and nanoscale patterns in the amorphous metallic layer. The pattern transfer is in the form of direct mask embossing or through a serial nano-indentation process. A rewriting process is also disclosed, which involves an erasing mechanism that is accomplished by means of a second thermoplastic forming process. The amorphous metallic materials may also be used directly as an embossing mold in imprint lithography to allow high volume imprint nano-manufacturing. This invention also comprises of a method of smoothening surfaces under the action of the surface tension alone.

Abstract: The present invention relates to a process of preparing a nanogap electrode and a nanogap device using the same, and a preparing process according to the present invention is characterized in that reduced metal is grown by reduction reaction from a metal ion in solution on the surface of a metal pattern with a predetermined shape. A method of preparing a nanogap electrode according to the present invention has an advantage that nanogap electrodes having a gap distance of 1-100 nm, which are difficult to prepare by a conventional method, can be easily prepared in a reproducible and uniform manner.

Abstract: An electronic device housing includes a substrate, a film structure, and a protective film. The film structure includes an adhesive film, a film stack, and a protective film. The adhesive film is deposited onto the substrate. The film stack is deposited onto the adhesive film alternating dielectric films and metal films. The metal films are non-continuous with a total thickness of the metal films at a predetermined value. The protective film is deposited onto an upper film of the film stack.

Abstract: Method of forming depressions (e.g. dimples) in a sheet material to form a textured surface thereon involves pressing one or more tool tips into a metallic or non-metallic sheet material while the sheet material is supported by a support layer that is relatively softer (e.g. having a lower Young's modulus) than the sheet material so as to allow plastic deformation and reduce pile-up of raised displaced material of the sheet material at the edges of the depressions.

Abstract: A weather strip has a trim portion and a seal portion. The trim portion has a vehicle interior side wall, a vehicle exterior side wall, and a connecting portion. A metal insert is embedded in the trim portion. The insert has piece portions and a center bond portion which connects the piece portions to one another. The thickness of each of parts of the insert, which are other than both curved parts, is set to be thinner than the thickness of each of both the curved parts. Thus, the thickness of the insert, except for the curved parts, is small. Consequently, the entire insert, thus, the entire weather strip can be lightened. On the other hand, both the curved parts are relatively thick. Accordingly, the weather strip can assure predetermined strength and stiffness and can easily maintain an initial shape.

Abstract: A honeycomb body for an exhaust treatment unit has at least one honeycomb structure and a least one housing, which at least partially surrounds the at least one honeycomb structure. At least one region between the honeycomb structure and the housing is formed with a brazed joint and at least two separate measures delimit the brazed joint. Furthermore, a method for producing a corresponding honeycomb is also proposed.

Abstract: The present invention relates to light weight composite materials which comprise a metallic layer and a polymeric layer, the polymeric layer containing a filled thermoplastic polymer which includes a thermoplastic polymer and a metallic fiber. The composite materials of the present invention may be formed using conventional stamping equipment at ambient temperatures. Composite materials of the present invention may also be capable of being welded to other metal materials using a resistance welding process such as resistance spot welding.

Abstract: A method of forming an electrode includes casting a molten metal in a mould to form an electrode with a header portion and a blade portion. The blade portion of the electrode is then rolled after it has been cast. The blade portion may be rolled into at least two different thicknesses. In one embodiment the metal is lead or lead alloy and the method relates to the forming of a lead or lead alloy anode.

Abstract: A high-strength cold-rolled steel sheet having a tensile strength of 340 MPa or more, which can prevent galling, can be manufactured even if a large number of the steel sheets are continuously press-formed. This is because a surface texture thereof is con-trolled so that the surface texture includes flat areas in which a roughness profile has a deviation of ±2 ?m or less from a filtered waviness curve and a dented portion having a maximum depth between 10 ?m and 50 ?m from the filtered waviness curve, wherein an average area of the dented portion is more than 0.01 mm2 and 0.2 mm2 or less, and an area fraction of the dented portion relative to the entire surface thereof is 5% or more and less than 20%.

Abstract: The present invention provides a metal sheet rolling method of rolling a metal sheet with a pair of rolls, as well as a rolled sheet manufactured by the metal sheet rolling method. In the metal sheet rolling method, respective interfaces between the pair of rolls and the metal sheet have mutually different frictions. Additionally at least one of the interfaces may be lubricated by a procedure other than lubrication by coating of a liquid lubricant agent. Alternatively at least one of the interfaces may be subjected to surface treatment by a procedure other than lubrication, or otherwise the pair of rolls may be made of mutually different materials.

Abstract: The invention concerns a process for joining a first member (1) comprising an aluminum alloy to a second member (2) comprising a titanium alloy and having at least one edge with a thickness e, comprising the steps of (i) chamfering said edge of said second member into a tapered truncated shape having on a first side a first tapering angle ?1, on a second side a second tapering angle ?2 and a minimum thickness t, wherein ?1 and ?2 are greater than or equal to zero, the sum of ?1 and ?2 is between 10° and 50° and t is between 0.05 e and 0.3 e, (ii) placing said first member and said chamfered edge of said second member (21) in an abutting relationship defining a geometry to be weld-brazed (3), (iii) heating the surface areas of said members adjacent the abutment to a temperature above the melting temperature of said aluminum alloy and below the melting temperature of said titanium alloy, in the presence of an inert gas (5) and of a filler metal (4) to obtain a weld-brazed joint.

Abstract: A slide member provided with an Al-based alloy layer including Si and having a first contoured surface having first planar surfaces and first convexities consisting of Si particles protruding from the first planar surfaces; an intermediate layer that coats the Al-based alloy layers an overlay that coats the intermediate layer; wherein 90% or more of the Si particles protruding from the first planar surfaces are configured to have a predetermined particle diameter of 2 ?m or less, the Si particles having the predetermined particle diameter being distributed in the Al-based alloy layer with a distance between centers of gravity of the Si particles having the predetermined particle diameter averaging 6 ?m or less, and wherein the overlay has a second contoured surface having second planar surfaces and second convexities conforming with the first planar surfaces and the first convexities of the first contoured surface.

Abstract: The magnetic laminated film includes magnetic films having smooth surfaces. The method of manufacturing the magnetic laminated film comprises the steps of: forming a magnetic film including Fe and Co; smoothening a surface of the magnetic film; forming a discontinuous film, which is composed of a magnetic material or an insulating material and which has a thickness to form a discontinuous film, on the smooth surface of the magnetic film; and repeating the above described steps to laminate a plurality of the magnetic films.

Abstract: Anode foil, preferably aluminum anode foil, is etched using a process of treating the foil in an electrolyte bath composition comprising a sulfate and a halide, such as sodium chloride. The anode foil is etched in the electrolyte bath composition by passing a charge through the bath. The etched anode foil is suitable for use in an electrolytic capacitor.

Abstract: In a throttle body, a passive film and a corrosion-resistant film are stacked in that order on a substrate of aluminum. The passive film has a concave part on its corrosion-resistant film side. A metal layer is provided in the concave part. In shot blasting, upon collision of a blasting material against the corrosion-resistant film, a part of the blasting material is separated and adhered onto the resultant concaves to form the metal layer. For example, aluminum having a purity of not less than 98% is selected as the blasting material.

Abstract: An Al—Zn—Mg—Cu alloy with improved damage tolerance-strength combination properties. The present invention relates to an aluminium alloy product comprising or consisting essentially of, in weight %, about 6.5 to 9.5 zinc (Zn), about 1.2 to 2.2% magnesium (Mg), about 1.0 to 1.9% copper (Cu), preferable (0.9Mg?0.6)?Cu?(0.9Mg+0.05), about 0 to 0.5% zirconium (Zr), about 0 to 0.7% scandium (Sc), about 0 to 0.4% chromium (Cr), about 0 to 0.3% hafnium (Hf), about 0 to 0.4% titanium (Ti), about 0 to 0.8% manganese (Mn), the balance being aluminium (Al) and other incidental elements. The invention relates also to a method of manufacturing such as alloy.

Abstract: A metal base including a surface portion containing aluminum. The metal base is formed with at least either of recesses and projections at a surface of the metal base and therefore has a planar pattern formed by the at least either of the recesses and projections when viewed from above the surface of the metal base, in which the planar pattern is a scale-like pattern.

Abstract: The invention relates to a method of producing an overlapping hybrid connection between two or more components. A hybrid connection in the meaning of the invention is characterised by adhesively bonding and producing mechanical spot joint connections between two joining parts, the adhesive layer being arranged in the region of the mechanical joint connections. The method according to the invention is carried out in the following method steps: purposefully removing material from one or more of the components or purposefully applying material to one or more of the components in the region of the lap joint to be produced to form one or more projections, applying adhesive to one or more of the components in the region of the lap joint to be produced, overlapping the components, pressing the components together in the region of the lap joint to press the projections against the overlapping component(s) and producing one or more mechanical spot joint connections on the projections in the overlap region.

Abstract: A flexible film is provided. The flexible film includes a dielectric film; and a metal layer disposed on the dielectric film, wherein the ratio of the thickness of the metal layer to the thickness of the dielectric film is about 1:3 to 1:10. Therefore, it is possible to improve the peel strength, dimension stability, and tensile strength of a flexible film by limiting the ratio of the thicknesses of a dielectric film and a metal layer of the flexible film.

Abstract: An apparatus for use in a liquid environment has a metallic substrate material with a nodular nickel boron coating applied using an electroless plating process. Where the coated apparatus comes into contact with a fluid, the coated apparatus exhibits improved hydrodynamic performance, including decreased cavitation and erosion of the substrate. The coating also decreases the drag coefficient between the coated surface and liquid. Moreover, the surface of the coated article experiences less marine growth, and any growth that does accumulate is easier to remove.

Abstract: A run-in coating is for gas turbines. The run-in coating is used for sealing a radial gap between a housing of the gas turbine and rotating rotor blades of same, the run-in coating being applied onto the housing. The run-in coating is made of an intermetallic titanium-aluminum material.

Abstract: A method for preparing an iridium tip with atomic sharpness. The method includes tapering an iridium wire to a needle shape and heating the iridium needle in an oxygen atmosphere. Also disclosed is an iridium needle having a pyramidal structure which terminates with a small number of atoms prepared by the methods.

Abstract: A method for producing metal fibers includes a machining production method using at least one rotating tool. A device for producing metal fibers, a filter material having such fibers, a method for producing the material, a particle filter using such material, a motor vehicle equipped with the filter, and a fiber, are also provided.

Abstract: The present invention relates to a channeled metal clad fiber comprising one or more surface channels that extend along directions that are substantially parallel to the longitudinal axis of such fiber. The present invention also provides a microfibrous fuel cell structure that comprises a hollow microfibrous membrane separator having an electrolyte medium therein and defining a bore side and a shell side. An inner current collector, which is formed of a channeled metal clad fiber or a channeled metal fiber that is unclad, and an inner electrocatalyst layer are positioned at the bore side of such microfibrous fuel cell, and an outer current collector and an outer electrocatalyst layer are positioned at the shell side of such microfibrous fuel cell. The surface channels on such inner current collector provide inner fluid passages for passing a fuel-containing or an oxidant-containing fluid through the microfibrous fuel cell.

Abstract: A welded joint between two metal members in which the weld must support a structural load. The abutting faces of the welded members have step portions formed therein, in which the step portions extend beyond the surface of the adjoining welded members. The outer step portion of one member extends beyond an inner step portion of the adjacent member, and a weld is applied on abutting faces of the members and the step portions. The welded joint of this invention is intended to be used for two adjacent rotor discs in a gas turbine engine. But, the weld arrangement of this invention can be used for welding two pipes together, or two adjacent plate members. The weld arrangement of this invention provides for reduced stress distribution along the weld line that acts to increase part life.

Abstract: Fabrication techniques for and examples of metallic composite materials with high toughness, high strength, and lightweight for various structural, armor, and structural-armor applications. For example, various advanced materials based on metallic-intermetallic laminate (MIL) composite materials are described, including materials with passive damping features and built-in sensors.

Abstract: A metal screen material (32) having a flat side, in particular electroformed screen material, preferably seamless cylindrical screen material, comprises a network of dikes (34) which are connected to one another by intersections (36), which dikes (34) delimit openings (30). The height of the crossing points (36) is not equal to the height of the dikes (34). The metal screen material (32) or a combination thereof with a perforating screen (17) can he used as a perforating stencil for the perforation of film material (2), for example made from plastic material.

Abstract: Free weights for strength training or other athletic endeavors are provided. The free weights according to the present invention can provide a non-traditional, comfortable look and feel to users, and can reduce user intimidations to promote the use of the free weights and the resulting health benefits.

Abstract: The invention relates to a sheet metal plate, especially made of steel, for producing motor vehicle body components. In order to make the body component sufficiently rigid at highly stressed points in spite of using lightweight materials, the sheet metal plate (11) is provided with local reinforcement zones (13, 14). To this avail, the sheet metal plate (11) is joined together from at least two cut metal sheets (7, 9) with a straight seam (10). At least one of the cut metal sheets (7) comprises several parallel strips (2 to 6) having different strengths while each local reinforcement zone (13, 14) lies within a reinforced strip (2, 3).

Abstract: A bicycle frame part having a disproportionally enlarged end section and a method for making the same. The tube may be used as a bicycle frame part, and it may include a first section having a thickness, a second section configured to be forged from a first shape having a thickness that is different from the thickness of the first section to a second shape having a thickness that is less than the thickness of the first shape. The second shape of the second section may be proportionally enlarged relative to the first shape of the second section.

Abstract: Disclosed is a bonding method for dissimilar materials made from metals and its resulting structures. The materials to be bonded are formed by layering three or more sheets such that a dissimilar material interface and a same material interface are formed. A first current is conducted between a three-sheet layered plate material wherein an aluminum alloy plate, a zinc plated steel plate and a bare steel plate, for example, are layered in order. A nugget is formed in an interface between the zinc plated steel plate and the bare steel plate, which are the same materials. Then, a second current greater than the first current is conducted, and a nugget is formed in an interface between the aluminum alloy plate and the zinc plated steel plate.

Abstract: The present invention is directed to a method of polishing a minimum spangle aluminum-zinc alloy hot-dip coating applied to sheet steel to provide a polished hot-dip coating having a continuous, consistent surface appearance suitable for use in an unpainted condition.

Abstract: Various structures or components can include plated surfaces or other parts. For example, an article can include a base and a plated part with a limit artifact that results from plating adjacent a non-plateable surface; the limit artifact can be disposed away from the base. Exemplary limit artifacts include lack of protrusions, smooth upper surfaces, and curved surfaces, where a curved surface can transition between a smooth upper surface and an irregular side surface. Exemplary plated structures can be tube-shaped or cup-shaped, with an opening at a top end and, around the opening, a lip with a limit artifact. Wall-like structures can similarly have limit artifacts at their top end. If plating on a mold's side surface, the non-plateable surface can be the lower surface of an overhanging polymer disk or structure positioned on the mold. Plated tubes and wall-like structures can be employed in microfluidic structures.

Abstract: The invention provides spray coatings to achieve circumferentially non-uniform seal clearances in turbomachines. In steam and gas turbines it is desirable to assemble the machines with elliptical seal clearances to compensate for expected casing distortion, rotordynamics or phenomena that cause circumferentially non-uniform rotor-stator rubs. The claimed invention allows the casing hardware to be fabricated round, and a spray coating is applied to the radially inner surface such that the coating thickness varies circumferentially, providing the desired non-uniform rotor-stator clearance during assembly.

Abstract: A cylinder liner has an outer circumferential surface around which another metal is to be cast. The cylinder liner also has a plurality of protrusions disposed on the outer circumferential surface and having respective substantially conical undercuts or necks which are progressively spread outwardly from the outer circumferential surface. The protrusions have respective flat faces on the distal ends of the undercuts.