Abstract: A method for producing a component from two or more sub-components includes the steps of: producing each of the sub-components using an additive manufacturing process in which a resin, which is radiant-energy-curable, is partially cured using a selective application of radiant energy, wherein each sub-component includes a joint surface in which the resin is partially cured which is cured to a lesser degree than the remainder of the respective sub-component, so as to leave the joint surfaces in a condition suitable for bonding; assembling the sub-components with their respective joint surfaces in mutual contact; and performing a secondary cure of the partially-cured resin at the joint surfaces using an application of radiant energy, so as to further cure the partially-cured resin and bond the sub-components to each other, thereby forming the component.

Abstract: A cryogenic refrigerator includes a regenerative heat exchanger material in thermal contact with a working gas including a tin-antimony (Sn—Sb) alloy or a tin-gallium (Sn—Ga) alloy in at least one cooling stage. The regenerative heat exchanger material can include an Sn—Sb-M alloy, with M including at least one element selected from the group consisting of Bi, Ag, Ge, Cu, La, Mg, Mn, Nd, Ni, Pd, Pt, K, Rh, Sm, Se, S, Y, Fe, In, Al, Ce, Dy, Cd, Ti, Au, P, Pr, Yb and Zn. The cryogenic refrigerator can include a Gifford-McMahon refrigerator, a pulse tube refrigerator, or a Stirling refrigerator. A cryopump includes cryopanels adapted to condense or adsorb gases and a cryogenic refrigerator.

Abstract: Provided are a barrier film for a semiconductor wiring containing Ni with its remainder being W and unavoidable impurities and having a composition of WxNiy (70?x?90, 10?y?30 unit: atomic percent), and a sintered compact sputtering target for forming a barrier film for a semiconductor wiring containing Ni with its remainder being W and unavoidable impurities and having a composition of WxNiy (70?x?90, 10?y?30, unit: atomic percent), and comprising a target structure configured from a W matrix and Ni particles existing therein and in which W is diffused in the Ni particles.

Abstract: A method of metal injection molding on a plastics injection molding machine having a heated barrel with an increasing temperature gradient is disclosed. The method comprises the steps of providing a metal alloy feedstock including a first metal alloy with a first melting point and a second metal alloy with a second melting point that is higher than the first melting point, the first metal alloy and the second metal alloy providing a gradient in composition of solids to liquids paralleling the temperature gradient of the heated barrel, feeding the first metal alloy and the second metal alloy into the plastics injection molding machine, heating the first metal alloy and the second metal alloy within the plastics injection molding machine to about 500-700° F./260-372° C.; and forming an equilibrium of about 5% to about 30% solids to liquids between the first metal alloy and second metal alloy within the heated barrel.

Abstract: There is provided a composite material for a heat dissipating plate which achieves both a high thermal conductivity and a low coefficient of thermal expansion and has a performance satisfactory as a heat dissipating plate and a method of production of a composite material which can produce the composite material at a low cost. For this reason, powder metallurgy is used to produce the composite material for a heat dissipating plate. The composite material for a heat dissipating plate which is fabricated by this method of production contains an aluminum alloy and silicon carbide. The particles of silicon carbide are in contact with each other.

Abstract: A multiphase composite system is made by binding hard particles, such as TiC particles, of various sizes with a mixture of titanium powder and aluminum, nickel, and titanium in a master alloy or as elemental materials to produce a composite system that has advantageous energy absorbing characteristics. The multiple phases of this composite system include an aggregate phase of hard particles bound with a matrix phase. The matrix phase has at least two phases with varying amounts of aluminum, nickel, and titanium. The matrix phase forms a bond with the hard particles and has varying degrees of hard and ductile phases. The composite system may be used alone or bonded to other materials such as bodies of titanium or ceramic in the manufacture of ballistic armor tiles.

Abstract: A method for forming a three-dimensional article comprising the steps of: applying a model of the three dimensional article, applying a first powder layer on a work table, directing a first electron beam from a first electron beam source over the work table causing the first powder layer to fuse in first selected locations according to the model to form a first cross section of the three-dimensional article, directing a second electron beam from a second electron beam source over the work table, registering at least one setting of the first electron beam source, registering at least one setting of the second electron beam source, correcting the position of the second electron beam depending on the at least one setting of the first electron beam source and the at least one setting of the second electron beam source.

Abstract: A powder for use in the powder metallurgical manufacture of components is provided. Particularly the subject matter concerns an iron or iron based powder intended for the powder metallurgical manufacturing of components. It is especially suitable for manufacturing of components wherein self-lubricating properties are desired. The subject matter further relates to a method of manufacturing a component from said powder and an accordingly produced component. A diffusion-bonded powder comprising iron or iron-based particles, and particles diffusion-bonded to the iron or iron-based particles is provided. The said particles diffusion-bonded to the iron or iron-based particles may comprise an alloy of Cu and 5% to 15% by weight of Sn. A component is provided which is at least partly formed from such a diffusion-bonded powder.

Abstract: A method of making an article of manufacture includes positioning a cemented carbide piece comprising at least 5% of the total volume of the article of manufacture, and, optionally, a non-cemented carbide piece in a void of a mold in predetermined positions to partially fill the void and define an unoccupied space. Inorganic particles are added to the mold to partially fill the unoccupied space and provide a remainder space. The cemented carbide piece, the non-cemented carbide piece if present, and the hard particles are heated and infiltrated with a molten metal or a metal alloy. The melting temperature of the molten metal or the metal alloy is less than the melting temperature of the inorganic particles. The molten metal or metal alloy in the remainder space solidifies and binds the cemented carbide piece, the non-cemented carbide piece if present, and the inorganic particles to form the article of manufacture.

Abstract: A method for preparing an article is disclosed. The method comprises compacting a mixture of a first pre-alloyed powder and a lubricant to thereby form a green part having a green strength sufficient to permit mechanical handling; applying a slurry to a surface of the green part to thereby form a slurry coated green part, wherein the slurry comprises a second pre-alloyed powder, a binder, and a solvent; and heating the coated green part to a temperature below a solidus temperature of the first pre-alloyed powder and between a solidus temperature and a liquidus temperature of the second pre-alloyed powder to thereby solid state sinter the first pre-alloyed powder into a sintered core and to liquid state sinter the second pre-alloyed powder into a continuous alloy coating over the sintered core.

Abstract: A method of forming and assembling at least two parts together that may be metal, ceramic, or a combination of metal and ceramic parts. Such parts may have different CTE. Individual parts that are formed and sintered from particles leave a network of interconnecting porosity in each sintered part. The separate parts are assembled together and then a fill material is infiltrated into the assembled parts using a method such as capillary action, gravity, and/or pressure. The assembly is then cured to yield a bonded and fully or near-fully dense part that has the desired physical and mechanical properties for the part's intended purpose. Structural strength may be added to the parts by the inclusion of fibrous materials.

Abstract: An iron-based sintered sliding material includes: a sintered structure which contains 10-50 wt. % copper and 1-15 wt. % carbon and has been formed by sintering a powder mixture obtained by mixing at least one of an Fe—Cu alloy powder containing copper in an amount which is the solid solubility or larger and is 5-50 wt. %, excluding 50 wt. %, and an Fe—Cu—C alloy powder containing copper in an amount which is the solid solubility or larger and is 5-50 wt. %, excluding 50 wt. %, and containing carbon in an amount of 0-5 wt. %, excluding 0 wt. %, with a graphite powder and at least one of a copper powder and a copper alloy powder; and graphite particles dispersed in the sintered sliding material in an amount of 1-14 wt. % or 3-50 vol. %.

Abstract: A method of metal injection molding on an injection molding machine having a heated barrel with an increasing temperature gradient is disclosed. A first step includes providing a metal alloy feedstock including a first component having a first melting point and a second component having a second melting point that is higher than the first melting point, the first melting point and the second melting point selected to match the temperature gradient of the heated barrel of the injection molding machine. A second step includes feeding the metal alloy feedstock into the injection molding machine. A third step includes melting the metal alloy feedstock within the heated barrel of the injection molding machine. A fourth step includes maintaining the percentage of solids to liquids in the metal alloy feedstock of the first component and second component within a processable range of about 5% to about 30%.

Abstract: The invention relates to an assembly (1) having at least two metallic components (2, 3) which are subject to sliding stress and each have a sliding surface and in operation slide against one another, wherein at least one of the components (2, 3) consists of a metallic sintered material having an iron-based matrix containing iron together with carbon and up to 10% by weight of at least one non-ferrous metal at least in the region of the sliding stress, where the carbon content is at least 1% by weight and not more than 10% by weight and at least part of the carbon is present in unbound particulate form in the matrix.

Abstract: Methods of forming bit bodies for earth-boring bits include assembling green components, brown components, or fully sintered components, and sintering the assembled components. Other methods include isostatically pressing a powder to form a green body substantially composed of a particle-matrix composite material, and sintering the green body to provide a bit body having a desired final density. Methods of forming earth-boring bits include providing a bit body substantially formed of a particle-matrix composite material and attaching a shank to the body. The body is provided by pressing a powder to form a green body and sintering the green body. Earth-boring bits include a unitary structure substantially formed of a particle-matrix composite material. The unitary structure includes a first region configured to carry cutters and a second region that includes a threaded pin. Earth-boring bits include a shank attached directly to a body substantially formed of a particle-matrix composite material.

Abstract: A ferrous sintered multilayer roll-formed bushing having a ferrous sintered sliding material layer which is sinter-bonded to a back metal steel, wherein the ferrous sintered sliding material layer is produced in such a manner that a Fe—C—Cu—Sn based sintered sliding material mixed powder containing at least carbon of 0.40 to 15 wt %, Cu of 13 to 40 wt % and Sn of 0.5 to 10 wt % is preliminarily sinter-bonded to said back metal steel and then finally sinter-bonded by a liquid-phase sintering at high temperatures higher than 1000° C. after bending into a roll.

Abstract: A method for producing a cemented carbide material includes producing an M3C type double carbide (wherein M comprises M1 and M2; M1 represents one or more elements selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W; and M2 represents one or more elements selected from the group consisting of Fe, Co and Ni) as a main component of the surface portion; reducing heat treating the compact at a vacuum atmosphere; carburizing the resulting WC—Co compact at a temperature of 800 to 1100° C.; subjecting the carburized compact to liquid phase sintering at a temperature of more than 1350° C. to form a sintered body; and coating a surface layer of the sintered body with a compound containing boron and/or silicon and subjecting the coated sintered body to a diffusion heat treatment at a temperature within a range from 1200 to 1350° C.

Abstract: A method of forming and assembling at least two parts together that may be metal, ceramic, or a combination of metal and ceramic parts. Such parts may have different CTE. Individual parts that are formed and sintered from particles leave a network of interconnecting porosity in each sintered part. The separate parts are assembled together and then a fill material is infiltrated into the assembled parts using a method such as capillary action, gravity, and/or pressure. The assembly is then cured to yield a bonded and fully or near-fully dense part that has the desired physical and mechanical properties for the part's intended purpose. Structural strength may be added to the parts by the inclusion of fibrous materials.

Abstract: The present invention provides a WC—Co system (the WC—Co system in the present invention means that it comprises not only hard grains composed mainly of WC and iron group metal powder containing Co, but also at least one kind selected from carbide, nitride, carbonitride and boride of elements in Groups IVa, Va and VIa of the Periodic Table, excluding WC, as hard grains) cemented carbide having high strength and high toughness which is excellent in wear resistance, toughness, chipping resistance and thermal crack resistance.

Abstract: A wear part is formed of a diamond-containing composite material with 40 to 90% by volume of diamond grains, 0.001 to 12% by volume of carbidic phase, formed from one or more elements from the group Si, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, B, Sc, Y and lanthanides and 7 to 49% by volume of a metallic or intermetallic alloy with a liquidus temperature<1400° C., the metallic or intermetallic alloy containing the carbide-forming element or elements in dissolved or precipitated form and having a hardness at room temperature>250 HV.

Abstract: A method of assembling two or more parts together that may be metal, ceramic, metal and ceramic parts, or parts that have different CTE. Individual parts are formed and sintered from particles that leave a network of interconnecting porosity in each sintered part. The separate parts are assembled together and then a fill material is infiltrated into the assembled, sintered parts using a method such as capillary action, gravity, and/or pressure. The assembly is then cured to yield a bonded and fully or near-fully dense part that has the desired physical and mechanical properties for the part's intended purpose. Structural strength may be added to the parts by the inclusion of fibrous materials.

Abstract: Methods of forming bit bodies for earth-boring bits include assembling green components, brown components, or fully sintered components, and sintering the assembled components. Other methods include isostatically pressing a powder to form a green body substantially composed of a particle-matrix composite material, and sintering the green body to provide a bit body having a desired final density. Methods of forming earth-boring bits include providing a bit body substantially formed of a particle-matrix composite material and attaching a shank to the body. The body is provided by pressing a powder to form a green body and sintering the green body. Earth-boring bits include a unitary structure substantially formed of a particle-matrix composite material. The unitary structure includes a first region configured to carry cutters and a second region that includes a threaded pin. Earth-boring bits include a shank attached directly to a body substantially formed of a particle-matrix composite material.

Abstract: A method of manufacturing a sheet of semiconductor material is provided. The method includes forming a first layer of silicon powder of at least one semiconductor material, wherein the first layer has a lower surface and an opposite upper surface. The method further includes depositing a second layer across the upper surface of the first layer, wherein the second layer of silicon powder has a melting point that is substantially similar to the melting point of the first layer of silicon powder. The method also includes heating at least one of the first and second layers of silicon powder to initiate a controlled melt of one of the first and second layer of silicon powder and to initiate crystallization of at least one of the first and second layers of silicon powder.

Abstract: Disclosed is a manufacturing process of a sintered iron-copper base porous alloy and of an oil-impregnated sintered bearings, having the steps of: preparing a mixed powder comprising an iron powder, and at least one of a copper powder and a copper alloy powder; forming the mixed powder into a green compact; and sintering the green compact to obtain a sintered iron-copper base porous alloy. The iron powder contains a porous iron powder which has a particle size of 177 microns or less and a specific surface area of 110 to 500 m2/kg according to a gas adsorption method. The sintered compact has high intercommunicating porosity and low permeability, and it is sized to prepare the sintered bearing into which a lubricating oil is impregnated.

Abstract: The invention relates to a method for making metallic and/or non-metallic products 2, in particular dental products, by freeform sintering and/or melting, in which the products 2 are fabricated layer by layer from a material 5 that is applied layer by layer by means of a computer-controlled high-energy beam 7, in particular a laser or electron beam. In order to reduce production times, beam 7 irradiates predetermined positions P1 to P6 of a layer of a material 5 a plurality of time, namely m times, where m is a whole integer greater than 1. Each of said positions P1 to P6 is initially heated during the first irradiation to a temperature below the melting point Tmelt of the material 5, and during the mth irradiation to a temperature above said melting point and is completely melted over the entire thickness of the layer in such a way that the material (5) fuses at said position to the layer thereunder. The invention also relates to an apparatus for performing said method.

Abstract: Tungsten-based alloy material sintered at a high sintering power that may contain additive elements soluble in the nickel and selected from the group constituted, for example, by rhenium, molybdenum, tantalum, niobium, vanadium or a mixture of these, wherein, after sintering in liquid phase at a temperature of around 1500° C., it has: a two-phased ?-? microstructure that is fully densified, has no porosities or has negligible porosities of a low mean grain size (L?) and a contiguity (C??) that is very low with respect to the size of the tungsten crystals, and a dispersion of micro-oxides with no loss of ductility properties.

Abstract: A method includes combining a solid first material and a solid second material and melting at least a portion of the first material sufficient to coat the second material and any remaining first material. An approximately homogenous distribution of the second material can be formed throughout the liquid phase of the first material. The first material liquid phase can then be solidified to define a composite target blank exhibiting an approximately homogenous distribution of the solid second material in a matrix of the solidified first material. The first material can comprise SE and the second material can comprise Ge and/or Ag. The composite target blank can include at least about 50 vol % matrix. The first and second materials can be powdered metals. Accordingly, a physical vapor deposition target can include a matrix of a first material and an approximately homogenous distribution of particles of a second material throughout the first material matrix.

Abstract: A green article comprising an A-B powder mixture and methods of manufacturing such green articles and corresponding sintered articles are disclosed. The A-B powder mixture consists of a minor volume fraction of a relatively fine powder A and a complementary major volume fraction of a relatively coarse prealloyed powder B wherein the A-B powder mean particle size ratio is at least about 1:5. Metal powder A consists of one or more elemental metals or alloys which has a melting or solidus temperature above the highest sintering temperature at which the A-B powder mixture may be sintered without slumping. Prealloyed metal powder B consists of one or more alloys which are amenable to supersolidus liquid phase sintering. Green articles made from the A-B powder have a wider sintering temperature window than do articles made from prealloyed metal powder B alone.

Abstract: Metal-metal or metal-ceramic/carbide composite materials are fabricated by combination of powder injection molding and infiltration. This is achieved by first forming a composite system having a matrix component and an infiltrant layer. The matrix component is formed from a metal or ceramic/carbide powder, that is of a higher melting point, admixed with a first binder. The infiltrant layer is formed from a metal powder, that is of a lower melting point, admixed with a second binder. The first and second binders are subsequently removed from the composite system during a debinding process. The composite system is then heated in a sintering furnace to coalesce the matrix component into a matrix phase having a network of interconnected pores, and to effect infiltration of the infiltrant layer into these pores to form the composite material of the present invention.

Abstract: A process for producing a binder phase free fine grained refractory metal compact at temperatures that are less than about 80 percent of the melting point of the refractory metal. A refractory metal is mixed with a metallic reagent to produce a mixture with a low melting point, and formed into a preform. The metallic reagent has limited solubility in the solid phase refractory metal. The refractory metal-metallic reagent mixture forms a liquid phase at the boundaries of the refractory metal grains. The metallic reagent diffuses into the boundaries of the refractory grains leaving a solid refractory-reagent phase at the boundaries between the grains. As heating continues at less than about 80 percent of the melting point of the refractory metal, consolidation takes place with minimum grain growth until the solid refractory-reagent phase substantially disappears and a refractory metal compact without a binder phase is recovered.

Abstract: A braze preform and a method for making the braze preform are disclosed. The braze preform includes a filler metal that has been sintered to produce a liquid phase of at least a portion of the filler metal.

Abstract: Liquid phase sintering method for a two-phase alloy includes forming a green body billet of a two-phase alloy, solid state sintering the green body billet, surrounding the solid state sintered billet with a refractory barrier medium within a refractory container to form a charge, optionally flowing wet hydrogen through at least a portion of the charge, equilibrating a charge temperature below a solidus temperature of the two-phase alloy, changing the charge temperature to a liquid phase sintering temperature of the two-phase alloy, maintaining the liquid phase sintering temperature for a period of time of ≦four hours, reducing the charge temperature to less than the solidus temperature of the two-phase alloy, and optionally holding the charge stationary as the charge temperature passes through the solidus temperature. Optionally, the charge can be rotated about an axis of symmetry during liquid phase sintering and a portion of the charge can be zone heated.

Abstract: The present invention provides a lubricant system in the pressing of powders to form a part. The lubricant system is a solid at ambient conditions. However, upon application of pressure during the pressing of the metal parts, the lubricant system forms a liquid phase along the walls of cavity in which the powder is being pressed. The lubricant system may also be used in connection with a polar powder thereby providing certain beneficial results.

Abstract: This invention presents the process of direct laser casting of copper alloys: Cu—X (where X=Ni, Fe, W;) and their composites Cu—Y and Cu—X—Y (Y=WC, TiC, Ti+C) from powders prepared using mechanical mixing and ball milling processes. Since the metallic powder is combined with a low melting point Cu metal, which has good thermal and electrical conductivity, the combination allows the powder mixture to be melted by CO2 laser and re-solidified into a part with good mechanical properties and conductivity. The laser casting process for the Cu-based in-situ formation and the material systems formed using the said method have been developed. The process can be used to fabricate complex three-dimensional objects by multi-layer overlapping and the material systems can be used to build rapid tooling due to the properties of good thermal conductivity and low wear rate.

Abstract: An apparatus and method of producing dense, near net shape components of advanced materials such as intermetallics, ceramics, and their composites. The method consists of two major steps combined into one. First step includes the preparation of semi-solid or liquid materials by means of combustion synthesis or self-propagating high-temperature synthesis. The second step includes the densification and near net shape forming of such combustion products by semi-solid metalworking or die casting techniques. The combination of combustion synthesis and semi-solid metalworking or die casting techniques provides a low cost, fast production method for many articles made of high temperature materials such as intermetallics, ceramics, and their composites.

Abstract: The present invention relates to a method of controlling the microstructures of Cu—Cr-based contact materials for vacuum interrupters, in which a heat-resistant element is added to the Cu—Cr-based contact materials to obtain an excellent current interrupting characteristic and voltage withstanding capability, and contact materials manufactured thereby. The method of controlling the microstructures of Cu—Cr-based contact materials includes the steps of mixing a copper powder used as a matrix material, a chromium powder improving an electrical characteristic of the contact material and a heat-resistant element powder making the chromium particles in the matrix material fine to thereby obtain mixed powder, and subjecting the mixed powder to one treatment selected from sintering, infiltration and hot pressing to thereby obtain a sintered product.

Abstract: A process for producing a binder phase free fine grained refractory metal compact at temperatures that are less than about 80 percent of the melting point of the refractory metal. A refractory metal is mixed with a metallic reagent to produce a mixture with a low melting point, and formed into a preform. The metallic reagent has limited solubility in the solid phase refractory metal. The refractory metal-metallic reagent mixture forms a liquid phase at the boundaries of the refractory metal grains. The metallic reagent diffuses into the boundaries of the refractory grains leaving a solid refractory-reagent phase at the boundaries between the grains. As heating continues at less than about 80 percent of the melting point of the refractory metal, consolidation takes place with minimum grain growth until the solid refractory-reagent phase substantially disappears and a refractory metal compact without a binder phase is recovered.

Abstract: A method of directly fabricating metal parts with surface features only requires first preparing a mold of the desired metal part. A powder blend is poured into the mold, which includes a base metal, a lower melting temperature alloy of the base metal, and a polymer binder. The mold containing the powder blend is heated until the polymer binder melts and adheres the metal particles to form a green part. The green part is removed from the mold and placed in a crucible, and loose ceramic powder is packed around the part to support it. The supported green part is then heated as needed to vaporize the binder and consolidate the part via liquid phase sintering. Once cool, the consolidated part can be machined to meet precise dimensional tolerances, if necessary.

Abstract: The use of hot pressing for weighting of a golf club head is disclosed herein. The preferred weighting material is a multiple component material that includes a high-density component and a binding component. A preferred multiple component material includes tungsten and tin. The hot pressing process is performed in an open air environment at standard atmospheric conditions.

Abstract: A method for producing an indium-tin-oxide sintered body comprising the steps of; molding a powder comprising indium, tin and oxygen, and sintering the molded article in oxygen gas-containing atmosphere, wherein the halogen content of the powder comprising indium, tin and oxygen is 0.02% by weight or less, the concentration of oxygen in the oxygen gas-containing atmosphere is 90% or more during the sintering, the partial pressure of moisture contained in the oxygen gas-containing atmosphere is 800 Pa or less during the sintering, and the molded article is maintained at a temperature in the range from 1500 to 1650° C. for 1 hour or more for the sintering.

Abstract: The use of liquid phase sintering for weighting of a golf club head is disclosed herein. The preferred weighting material is a multiple component material that includes a high-density component, a binding component and an anti-oxidizing component. A preferred multiple component material includes tungsten, copper and chromium. The liquid phase sintering process is performed in an open air environment at standard atmospheric conditions.

Abstract: A method for making porous metals that can be used as a filter, a sound-absorbing plate and a line material for a heat exchanger, is manufactured in a simple process using metal powder. The method includes the steps of heating a mixture of a powder-shaped salt and metal powder at a temperature lower than a melting temperature of the salt and higher than a melting temperature of metal powder, to thereby melt the metal powder, pressing and molding the mixture so that the fusion metal is filled into the powder-shaped salt, and erupting the salt from, the plastic body to thereby obtain porous metal. The porous metal having a simple process and a reduced production cost, has an advantageous competitiveness over any or methods for use in a sound-absorbing material or a line material of a neat exchanger, in view of a high pore ratio and a specific surface area.

Abstract: The present invention relates to a powder-metallurgically produced composite material comprising a matrix and a granular additive comprising at least one fine-grained refractory metal with an average grain size of at most 2 &mgr;m uniformly distributed in the matrix, so that the composite exhibits a residual porosity of <0.5%. Furthermore, the invention relates to a method for the production of the composite and its use as an electrical contact material.

Abstract: A method for manufacturing the roller carrier of a vibration balance device, the roller carrier is installed with at least one round track around a rotary axis thereof for carrying a plurality of rollers; characterized in that: the roller carrier is made of alloy powder and made by a process of metal powder metallurgy. The material of the powder is SUS-316L or other proper alloy powder. The manufacturing process of the metal powder metallurgy includes the steps of: feeding material, compacting, sintering, and sizing, or other manufacturing process of the metal powder metallurgy (MIM) can be used, which includes the steps of feeding material, pelletizing, injection molding, debinding, sintering, and sizing. The roller carrier from aforementioned processes uses less materials, can be mass-produced, has a precise dimension, is light weighted, has a smooth surface and has a high surface hardness.

Abstract: The present invention relates to a method for manufacturing a sintered body of carbonitride alloy with titanium as the main component and cobalt as the binder phase and which does not have any compositional gradients or center porosity concentration after sintering. This is achieved by processing the material in a specific manner to obtain a lower melting point of the liquid phase in the interior of the body than in the surface while balancing the gas atmosphere outside the body with the alloy composition during all stages of the liquid phase sintering.

Abstract: The use of liquid phase sintering for manufacturing a high density multiple component material is disclosed herein. The preferred weighting material is a multiple component material that includes a high-density component, a binding component and an anti-oxidizing component. A preferred multiple component material includes tungsten, copper and chromium. The liquid phase sintering process is preferably performed in an open air environment at standard atmospheric conditions.

Abstract: A method of producing a silicon aluminum sputtering target is provided. The target is formed from a powder base of between about 80% to about 95% by weight silicon and about 5% to about 20% by weight aluminum which is placed in a containment unit, heated under vacuum and then sealed. The base is then subjected to a pressure greater than about 3000 psi and heated to a temperature between about 1076° F. and about 1652° F. such that some, but not more than 30%, of the resulting target is formed from liquid phase silicon-aluminum.

Abstract: A method is disclosed for manufacturing a molded body, in accordance with three-dimensional CAD data of a model of a molded body, by depositing layers of a metallic material in powder form. Several layers of powder are successively deposited one on top of the other, whereby each layer of powder is heated to a specific temperature by means of a focused laser beam applied to a given area corresponding to a selected cross-sectional area of the model of the molded body, before deposition of the next layer. The laser beam is guided over each layer of powder in accordance with the CAD cross-sectional data of the selected cross-sectional area of the model in such a way that each layer of powder is fixed to the layer below it.

Abstract: A process for preparing complex-shaped, ceramic-metal composite articles, comprising: (a) contacting a non-wettable powder that is non-wetting to a metal to be used for infiltration with a shaped ceramic body to form a layer of the non-wettable powder on one or more surfaces of the shaped ceramic body, wherein the shaped ceramic body has a region where there is no layer of the non-wettable powder, and (b) infiltration the shaped ceramic body with the metal through the region or regions where there is no layer of the non-wettable powder, such that a complex-shaped ceramic-metal composite comprising one or more metal phases and one or more ceramic phases is formed, wherein the article has substantially the net shape of the shaped ceramic body and undesirable regions of excess metal on the surface and undesirable phases within the complex-shaped ceramic-metal composite article near the surface are located only in the region or regions where there is no layer of the non-wettable powder.

Abstract: Solid objects are formed in an imagewise layering process in which components of a dispersion are homogenized to form an alloy. Imagewise exposure of the layers to radiation to form an alloy permits separation of the exposed, homogenized regions from non-exposed, non-homogenized regions. As each layer is formed and imagewise homogenized, contiguous layer regions are bonded together to form a homogenized, three-dimensional object which may be separated from surrounding dispersion.