Abstract: The invention relates to metal-plastic composites in which the coefficients of thermal expansion of the plastic structures used are similar to those of the metals used, and whose strengths and stiffnesses are superior to those of purely metallic structures.

Abstract: A method for manufacturing an aluminum-based composite plate is disclosed. The method comprises the step of producing an aluminum-based composite billet. The billet production step includes reducing, by magnesium nitride, an oxide-based ceramic as a porous molded body. The reduced oxide-based ceramic has improved wettability. An aluminum alloy is then caused to infiltrate into porous sections of the reduced oxide-based ceramic to thereby provide the aluminum-based composite billet. The billet is extrusion molded into a flat plate form by using an extrusion press. Plates of desired shapes are punched from the molded flat plate by using a press.

Abstract: A stretched mask having a high tensile strength and favorable high-temperature creep properties and free from tape twist, and a material for the stretched mask. A low-carbon steel sheet containing 70 ppm to 170 ppm of nitrogen on a weight basis is heat-treated at a temperature at which recrystallization does not take place. The heat-treated material is provided with a resist pattern for forming apertures and subjected to etching to form apertures.

Abstract: The present invention relates generally to an improved laser welded work piece, such as an automotive body panel, and a system and method for the manufacture thereof. The invention is also directed to an improved system for manufacturing the welded work piece including an improved laser welder and a laser weld inspection device and system.

Abstract: A nickel, chromium, iron alloy for use in producing weld deposits. The alloy comprises, in weight percent, about 27 to 31.5 chromium; about 7 to 11 iron; about 0.005 to 0.05 carbon; less than about 1.0 manganese, preferably 0.30 to 0.95 manganese; about 0.60 to 0.95 niobium; less than 0.50 silicon, preferably 0.10 to 0.30 silicon; 0.01 to 0.35 titanium; 0.01 to 0.25 aluminum; less than 0.20 copper; less than 1.0 tungsten; less than 1.0 molybdenum; less than 0.12 cobalt; less than 0.10 tantalum; less than about 0.10 zirconium, preferably 0.002 to 0.10 zirconium; less than about 0.01 sulfur; less than about 0.01 boron, preferably 0.001 to 0.01 boron; less than about 0.02 phosphorous; and balance nickel and incidental impurities.

Abstract: A decorative roll-patterned metal strip or sheet, preferably aluminium strip or sheet, having: a thickness of about 0.05-1.0 mm, preferably about 0.1-0.8 mm, with a surface having a plurality of indentations of a depth of about 0.001-0.05 mm, preferably about 0.02-0.035 mm, and optionally having a layer of a paint of a thickness of about 3-30 microns, preferably about 10-15 microns, on the surface and within its indentations, the ratio of the depth of the indentations to the thickness of the strip or sheet being in the range of about 1:5 to about 1:100. A process is provided for making the decorative roll-patterned metal strip.

Abstract: Diffusion bonding techniques are extended to the simultaneous bonding of an array of multilevel piece parts. The problems of uneven expansion and contraction of different levels of different piece parts in the array are obviated by positioning each level of the array within a frame. The stack of frames is pinned in one corner. The opposite corner of the array has a slot at a 45° angle with respect to the x and y axes of the array. The slot engages a pin and allows the entire array to expand and contract along the slot in a manner to maintain the registration of features between respective levels of each piece part.

Abstract: A composite wire for the manufacture of semifinished products to be subjected to an emptying process in the field of goldsmithery. The wire comprises a support core developing essentially along one of its longitudinal axes in a nonprecious metal that is removable by chemical or electrochemical means as well as a plurality of sections in precious metal having an essentially longitudinal development of which at least a portion of each one is radially engaged in the core.

Abstract: There are provided a circuit-forming substrate comprising a long stainless steel foil having formed on one surface or both surfaces thereof a polyimide resin layer wholly or partially, and a circuit substrate formed by using the circuit-forming substrate, wherein a conductor layer is finely patterned on the circuit-forming substrate. The circuit-forming substrate sufficiently satisfies low cost, high density and high reliability, scarcely causes warping of the substrate itself, and has excellent workability.

Abstract: A stent and a method for fabricating the stent are disclosed. The stent has an originally flat pattern and connection points where the sides of the flat pattern are joined. The method includes the steps of a) cutting a stent pattern into a flat piece of metal thereby to produce a metal pattern, b) deforming the metal pattern so as to cause two opposing sides to meet, and c) joining the two opposing sides at least at one point. Substantially no portion of the stent projects into the lumen of the stent when the stent is expanded against the internal wall of a blood vessel.

Abstract: The invention provides for a functionally-graded metal substrate that is made of at least two metal compositions, a functional insert and a surrounding body that surrounds the functional insert. In a preferred embodiment of the invention a functional insert powder composition of loose powder metal is placed in a compact of a surrounding body powder composition and both metal compositions are sintered in a sintering furnace to form a sintered part. The sintered part is infiltrated in part or in whole with a molten metal compound to produce a functionally graded metal substrate having a density of at least 90% of theoretical. A heat-generating component such as a chip can be attached to the metal substrate for use in microelectronic packaging. When the functionally-graded metal substrate has two discrete compositions of copper/tungsten the surrounding body which has a CTE that ranges from about 5.6ppm/.degree. C. to about 7 ppm/.degree. C.

Abstract: A thin steel sheet having excellent rectangular drawability is produced by completing roughing rolling of steel containing C: 0.02 wt % or less, Si: 0.5 wt % or less, Mn: 1.0 wt % or less, P: 0.15 wt % or less, S: 0.02 wt % or less, Al: 0.01 to 0.10 wt %, N: 0.008 wt % or less, at least one of Ti: 0.001 to 0.20 wt % and Nb: 0.001 to 0.15 wt %, the balance comprising Fe, and inevitable impurities, in the temperature region of 950.degree. C. to the Ar.sub.3 transformation temperature: performing finish rolling at a reduction of over 70% under lubrication in the temperature region of the Ar.sub.3 transformation temperature to 500.degree. C.; pickling the sheet; annealing the resultant hot rolled sheet under conditions which satisfy the equations (1) and (2) below:(T+273) (20+log t).gtoreq.2.50.times.10.sup.4 (1)745.ltoreq.T.ltoreq.920 (2)wherein T: hot rolled sheet annealing temperature (.degree. C.

Abstract: A cylinder-liner blank which preferably consists of a hypereutectic aluminum/silicon alloy and is cast into a crankcase. A special surface treatment achieves better material bonding of the liner in the crankcase. The blank has a roughness of 30 to 60 .mu.m on its outside, in the form of pyramid-like or lancet-like protruding material scabs or material accumulations. To obtain this roughness, the surface is blasted with particles which are broken so as to have sharp edges and consist of a brittle hard material, preferably high-grade corundum, with an average grain size of about 70 .mu.m. A fine fraction is formed and is continuously separated off. The average grain size is maintained by adding new particles.

Abstract: A bearing outer-race performed piece has a turning stock on an outer periphery thereof and has a circular bearing groove on an inner surface thereof. The bearing groove has a cross-section which includes circular portions defined by a circle of a greater diameter than that of a bearing groove of a bearing outer-race product, and a flat portion being arranged between the circular portions at a location shifted toward the center of the circle of the circular portions from a bottom locus of the circular portions.

Abstract: Pastes of dendrite particles coated with an electrically conductive coating are described. A surface is placed in contact with an electrolytic or electroless plating solution. Dendrites are formed on the surface. The dendrites are exposed to another plating solution to plate a coating on the surface of the dendrites. The coated dendrites are removed from the surface to form a powder of coated dendrites. The powder is added to a polymer material to form a paste. The paste is disposed between electrical contacts on adjacent surfaces. The paste is heated to fuse the dendrite surfaces to form a network of fused dendrites which are also fused to the electrical contacts. The paste is further heated to cure the polymer to form electrical interconnections between the electrical contacts on the adjacent surfaces.

Abstract: A preform insert for use in preventing the flow of a braze or solder material into a void in an article during a brazing or soldering operation. The insert is particularly suited to brazing techniques for repairing stator vanes of a gas turbine, though equally effective for use in the manufacture or repair of other articles, as well as soldering operations. The preform insert is composed of a refractory metal oxide powder dispersed in a polymeric solid such that the preform insert is solid yet relatively flexible. As such, the preform insert can be formed to be appropriately shaped and sized to fill a void in an article, such that the void will remain open after the brazing or soldering operation.

Abstract: An end fitting closes at least one end of a passageway having an external periphery and an internal periphery to be cast-in-place within a part. A fitting body has at least one elongated, blind-ended aperture formed therein. The aperture is defined at least in part by a first surface having a complimentary shape with respect to the external periphery of the cast-in-place passageway for receiving an end of the passageway disposed extending at least partially therein to close the passageway during casting of the part. The fitting body is composed of material essentially identical to material being used during casting of the part. The fitting body is positionable within a casting mold for forming the part to be cast, such that machining the cast part after casting opens the blind-end of the fitting to allow fluid flow through the passageway cast-in-place within the part.

Abstract: A B-channel for use in a damper frame or sleeve is disclosed which is formed from a blank of sheet metal. The blank has a rectangular barrier wall, a pair of side walls formed along two opposing edges and end walls formed along opposing edges of the barrier wall. The side walls and end walls are folded perpendicularly to the barrier wall and tabs are formed on the end walls to be folded into the planes of the side walls. The B-channel is particularly useful in conjunction with a fire damper sleeve.

Abstract: An easy open can end having an improved rivet structure integrally formed thereon for the attachment of a pull tab, a method of further forming a can end to incorporate the improved rivet, and tooling for accomplishing the method. The further formation of the can end includes the steps of bubble formation, first button formation, and final rivet formation.

Abstract: A method and apparatus are provided for reducing or eliminating sliver formation during aluminum sheet trimming operations. By controlling parameters such as trimming angle and cutting blade clearance, aluminum sheet can be trimmed while substantially eliminating the formation of slivers which damage the surface finish of the part. Cutting angle and clearance are preferably selected such that a wide range of cutting blade sharpnesses produce satisfactory cuts. The method and apparatus are particularly useful for trimming aluminum autobody sheet.

Abstract: A highly effective barrier for protecting objects against focused beams of radiant energy. The invention has special applicability in a combat environment for protecting military equipment against destruction by laser weapons, or for thwarting detection of such equipment by reflected radar waves. The barrier comprises a layer of slitted and expanded metal foil, made from a non-ferrous metal having an absorptivity less than 3% and a thermal conductivity above 100 W/m/K, interposed between the radiant energy beam and the object to be protected. The barrier layer may be multiple sheets of the slitted and expanded metal foil, or a contained layer of nested ellipsoids formed from the expanded metal sheets.

Abstract: A supply feedstock intended for use in a workpiece finishing machine wherein individual workpieces are successively separated and presented in a predetermined fashion to an automated loading means. The feedstock includes a plurality of individual workpieces arranged in side-by-side order in the form of a continuous belt, or bandolier, of workpieces, each of the workpieces being interconnected at head and tail portions of the workpieces by integral webs, successive workpieces being trimmed from the bandolier and presented to a loading means, while the separated webs are discharged to waste.

Abstract: An an aluminum mesh with interlaced hollow and solid ribs. The hollow ribs thereof define large open spaces of the aluminum mesh and the solid ribs thereof further define small open spaces within each large open space, providing the aluminum mesh with varied patterns formed from the interlaced hollow and the solid ribs in only one single stretching operation.

Abstract: A method of making a bird repellant structure includes the steps of punching into a continuous base strip a plurality of diagonal slots, cutting into the continuous base strip at least one finger extending from each of the diagonal slots such that a leading end of each finger is formed by a portion of the diagonal edge of each respective slot, and thereafter, punching a plurality of repellant arms into the continuous base strip. The repellant arms extend longitudinally from each diagonal slot such that a leading end of each repellant arm is formed by the diagonal edge of each diagonal slot and includes the fingers cut therein.

Abstract: An end fitting closes at least one end of a passageway having an external periphery and an internal periphery to be cast-in-place within a part. A fitting body has at least one elongated, blind-ended aperture formed therein. The aperture is defined at least in part by a first surface having a complimentary shape with respect to the external periphery of the cast-in-place passageway for receiving an end of the passageway disposed extending at least partially therein to close the passageway during casting of the part. The fitting body is composed of material essentially identical to material being used during casting of the part. The fitting body is positionable within a casting mold for forming the part to be cast, such that machining the cast part after casting opens the blind-end of the fitting to allow fluid flow through the passageway cast-in-place within the part.

Abstract: A blank for a sheet metal forming process having a part portion surrounded by a peripheral portion. The peripheral portion has a portion thereof which is discontinuous whereby scrap is minimized.

Abstract: There is provided a novel terminal bus and retainer for a multicellular converter, particularly a catalytic converter, which converter is characterized by an electrically heatable portion and a light-off portion. The electrically heatable portion includes flat thin metal strips as heater bands and flat thin metal bands not electrically heatable. A terminal bus and retainer is adapted to be connected to a voltage source and to the ends of the heater bands. A portion of the terminal bus and retainer may be used as a connector bus. The terminal bus and retainer also retains the thin metal foil elements in tightly spirally wound condition. These devices are especially useful in catalytic converters for automotive vehicles.

Abstract: An arm head for use in a wiper assembly. The arm head is designed to align the wiper blade perpendicular to the windshield of the automotive vehicle in a way that eliminates the need to bend the wiper rod.

Abstract: Apparatus and directed to improved gating for the investment casting of metal wood golf club heads.

Abstract: A method of forming a highly-deflective surface on aluminum alloys. The, the composition comprising: cleaning a body formed from an aluminum alloy; electrobrightening the body; and desmutting the surface of the freshly-brightened body without etching. The bath comprises: 15-95 vol. % nitric acid and 1-85 vol. % acetic acid; 1-40 vol. % total water; and a source of fluoride ion supplying at least 35 grams per liter of fluoride. Ammonium bifluoride is the preferred source of fluoride.

Abstract: Contacts such as contact points, contact strips, or contact sections are usually provided with hard solder on a copper-silver basis in the form of a flat solder layer. The contact is then connected over this solder layer with a contact carrier. The solder layer is melted, whereupon the free surface of the solder layer (13, 130) is covered during melting with a material (1, 5, 15) that has no solubility with silver or copper. The material can, during melting of the solder, form a covering (1, 15) beneath the contact (10, 12, 100) provided on its solder side with the solder layer (13, 130) or can also form a covering over the contact (10, 12, 100) provided on its solder side with the solder layer (13, 130). As materials for covering the solder layer (13, 130), high-melting metals, preferably tantalum, or a ceramic are used.

Abstract: A supply feedstock intended for use in a workpiece finishing machine wherein individual workpieces are successively separated and presented in a predetermined fashion to an automated loading means. The feedstock includes a plurality of individual workpieces arranged in side-by-side order in the form of a continuous belt, or bandolier, of workpieces, each of the workpieces being interconnected at head and tail portions of the workpieces by integral webs, successive workpieces being trimmed from the bandolier and presented to a loading means, while the separated webs are discharged to waste.

Abstract: An elongated retainer for use in a linear motion guide unit is provided. The retainer has a generally U-shaped cross sectional shape and formed with a recessed portion at each end thereof. The recessed portion is engageable with a corresponding stopper provided at each end of the guide unit so that the effective stroke of the retainer is increased by a sum of the depths of these two recessed portions.

Abstract: A composite article is manufactured by preparing a machined surface of the composite article for diffusion bonding. The method includes removing most of the exposed fibers by shot peening followed by acid etching. The acid etch may be followed by grit blasting and then another acid etch. After the method is applied to the surface, the article can be diffusion bonded to other composite article to form complex shapes.

Abstract: Disclosed is a method for preliminarily printing a blank for a tapered draw-formed body, which comprises transforming digital rectangular coordinates to annular coordinates so that the height of the rectangular coordinates is made to correspond to the height of a tapered plane on which the printed image is to be manifested and the change of the area of the tapered plane by a minute change of the height of the tapered plane is made equal to the change of the area of the annular plane. In this method, excessive flattening of the image in the lateral direction is prevented when the resulting preliminarily printed blank is draw-formed, and an image having a beautiful appearance and a high commercial value can be reproduced.

Abstract: An improved method of producing articles by chemical vapor deposition and articles made therefrom. The method comprises machining an appropriate shape on a suitable substrate, positioning an insert within the shape, depositing a support member material on the shape and the insert to produce a support member, separating the support member from the substrate, chemically vapor depositing an article material on the support member and etching away the support member to produce a free standing article, such as a funnel shaped diamond water-jet mixing tube.

Abstract: The present invention relates to a pattern for castings and the castings produced from the pattern. The pattern comprises a pattern plate including a parting plane, at least one multistage draft and at least one substantial draft extending from the parting plane. A casting having a suitable draft includes corner portions formed by the parting plane.

Abstract: A hollow metallic or metalloplastic element drawn or drawn-ironed from a decorated blank, and comprising an outer skirt decorated with an image formed from lines of dots of ink. The skirt has over its entire height which comprises zones of level h:2R at least equal to 0.5, a spacing between adjacent lines of dots of a same ink and an angle of inclination of the lines which are constant to better than a relative 1%.

Abstract: This invention overcomes problems such as pinholes and blisters in making plated coin blanks and similar articles. A ferrous metal blank is electroplated with a strike of nickel, following which a coating of copper is applied at an initial low current density followed by full current density to minimize bridging. Preferably an outer layer of nickel is applied, also at an initial low current density, followed by full current density. Annealing before or after application of the final layer of nickel is advisable. This invention also relates to the resulting coin blank and coins.

Abstract: High strength, high precision thin-walled cartridge cases are manufactured from a metal of interest selected from low alloy and carbon steels utilizing an extrusion and heat treating process. The cartridge blanks are extruded to a length greater than that necessary for the finished cartridge case and are provided with one or more peripheral grooves close to the open end of the extruded cartridge blank to prevent warpage during subsequent heat treatment.

Abstract: A billet is provided for subsequent heating and working into a finished product in, for example, a rolling mill. The billet comprises a mass of swarf jacketed in a tubular jacket. At least one end of the jacket is joined to an end piece which surrounds the end of the mass of swarf. The end piece and the jacket are materials of different composition. In particular, a jacket of stainless steel with mild steel end pieces at each end is envisaged. The end pieces may be open ended sleeves or caps. Where an open ended sleeve is used it may be closed by crimping its end or by the provision of an insert which is welded or crimped into the sleeve. The end of the swarf exposed in the sleeve may also be sealed by application of a graphite paste.

Abstract: A mold for the casting of aluminum sow ingots includes a mold box having a bottom wall and side walls that define a generally rectangular mold cavity. The bottom wall includes a central raised longitudinally extending protrusion and side longitudinally extending protrusions adapted to define corresponding depressions in the ingot bottom. The side depressions establish ledges for receiving a pair of fork lift blades or tines entering the ledges from either transverse side of the ingot perpendicular to the ledges. A pair of transversely extending protrusions in the mold bottom wall establish corresponding transverse depressions in the mold bottom that are perpendicular to the central longitudinal depression and equispaced from the central transverse axis by a distance enabling the pair of fork lift blades to enter the transverse depressions from a direction perpendicular to either of the longitudinally extending ingot sides to provide a dual entry feature for ease of handling.

Abstract: A metal insert is provided for use in forming an elastomer-tipped armature to a precise length. The insert is formed as an elongated member with a central hole passing through its length, and an elastomer element is molded within the hole. A circumferential groove is formed in the exterior surface of the insert to create a weakened "hinge" point in the insert wall such that, as mold elements for forming the elastomer element engage opposing ends of the insert, the insert may be compressed longitudinally at the groove to thereby decrease the overall length of the completed armature to within a predetermined tolerance.

Abstract: The invention is directed to an expandable metal product for use in extinguishing surface fires. Rolled, unexpanded continuous sheets of magnesium alloy foil are transported to the site of a fire and stretched over the surface of the fire to extinguish it. This invention also is directed to using the expanded product in the form of an ellipsoid to promote nestling in fuel containers.

Abstract: An improved blank base and method of making a bird repellant structure. The method comprises forming slots into a continuous base strip for the formation of repellant members. Said repellant members have a single forward diagonal edge for the simple cutting of repellant barbs.

Abstract: Disclosed herein is an improved new product and a process for its manufacture. The new product is a continuous cast steel bar having improved surface quality when compared to prior art continuous cast steel bars. The improved product is produced by means of a continuous casting machine of the known type having a rotating casting wheel with a peripheral groove which is closed along a portion of its length by a metal band.

Abstract: This invention provides improved prepregs for producing laminates and improved laminates using such prepregs. Processes for producing the prepregs and the laminates are also provided. Processes for producing the prepreg include the steps of providing a dipping solution or suspension comprising a polynorbornene polymer, a polyolefin polymer derived from C.sub.2 -C.sub.4 monomers, and a solvent followed by impregnating a non-cellulosic cloth with the solution. The solvent is removed from the cloth to form the prepreg. Printed circuit boards are also provided by a process which includes the steps of providing such a prepreg and pretreating the surface of a conductive film with a solution of a silane compound, effective to increase the bond strength between the copper foil and the prepreg, followed by laminating the prepreg to the conductive film.

Abstract: Printed wiring boards useful for high frequency applications are obtained by laminating a conductive foil pretreated with a silane to a polynorbornene prepreg wherein a sheet of polyolefin film derived from C.sub.2 -C.sub.4 monomers is laminated between the prepreg and the foil to the surfaces of each member. The prepreg is made by impregnating a fiberglass cloth with a ring-opening polymerized polymer. The conductive foil is pretreated with a silane which is capable of improving the bond strength between the conductive foil and a norbornene copolymer.

Abstract: A stainless steel wheel trim ring is constructed of an outer ring and a grip annulus. The outer ring is formed of a sheet metal band which is constructed from a rectangular blank having a pair of wedge shaped strain relief notches in a longitudinal edge adjacent to each end. The blank is welded at the joined ends to form the band. During manufacture, the band is expanded in the order of 25% at the longitudinal edge. A crimped peripheral bead along the longitudinal edge secures the grip annulus to the outer ring.

Abstract: Printed wiring boards useful for high frequency applications are obtained by laminating a conductive foil pretreated with a silane to a polynorbornene prepreg wherein a sheet of polyolefin film derived from C.sub.2 -C.sub.4 monomers is laminated between the prepreg and the foil to the surfaces of each member. The prepreg is made by impregnating a fiberglass cloth with a ring-opening polymerized polymer. The conductive foil is pretreated with a silane which is capable of improving the bond strength between the conductive foil and a norbornene copolymer.