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| Number | Title | Issue Date |
| 8153052 | High-temperature composite articles and associated methods of manufacture The present invention provides a method for forming a refractory metal-intermetallic composite. The method includes providing a first powder comprising a refractory metal suitable for forming a metal phase; providing a second powder comprising a silicide precursor s... | 04/10/2012 |
| 8153053 | Method for forming compact from powder and sintered product A method for forming a compact from a powder wherein a forming portion 1A in a mold body 2 is filled with a raw powder and upper and lower punches 3,4 are fitted into the forming portion 1A to form the compact. Prior to filling the formin... | 04/10/2012 |
| 8119062 | Method and apparatus for manufacturing a cutting insert A method for manufacturing a cutting insert green body having undercuts includes providing a die cavity formed in closed top and bottom dies; closing a bottom of the die cavity by a bottom punch accommodated in a punch tunnel formed in the bottom die; filling the di... | 02/21/2012 |
| 7897102 | Method of making valve guide by powder metallurgy process A powder metallurgy method for making valve guides for use in internal combustion engines advantageously utilizes uniaxial side pressing to form compacts. Such compacts are subsequently sintered, formed into a cylindrical shape, and then hollowed to form a valve gui... | 03/01/2011 |
| 7858023 | Method for producing raw material powder for rare earth sintered magnet, method for producing rare earth sintered magnet, granule and sintered body A method for producing a rare earth sintered magnet uses granules having an excellent fluidity to improve the dimensional accuracy and production of a compact formed of the granules without significant property losses. The granules are formed by adding an organic li... | 12/28/2010 |
| 7718117 | Tungsten sputtering target and method of manufacturing the target A method of manufacturing a tungsten sputtering target includes pressing a high purity tungsten powder to form a pressed compact, first sintering the pressed compact at a temperature of 1450-1700° C. for one hour or longer after the pressed compact is heated at a h... | 05/18/2010 |
| 7704449 | Electrode, electrical contact and method of manufacturing the same An electrical contact comprising a matrix of an alloy of a high electro-conductive metal and a low melting point metal and particles of a refractory metal dispersed in the matrix. The electrical contact comprises the alloy containing a low melting point metal of at ... | 04/27/2010 |
| 7625522 | Method and apparatus for forming a hole or slot in powder metal components One or more holes that extend through a wall of a powder metal component are formed by creating an absence of powder metal in a die set during compaction at an interface between a side surface of a punch and another side surface of the die set that faces the side su... | 12/01/2009 |
| 7553445 | Manufacturing processes of sintered alloy and oil-impregnated sintered bearing 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; form... | 06/30/2009 |
| 7531128 | Arrangement, device, method, product and use in connection with a blank made preferably of titanium powder and intended for a dental crown or other product for the human body An arrangement for producing a blank made of metal powder, preferably titanium powder, intended for a dental crown or other product for the human body (spacer, dentine, implant, etc.) comprises at least one first apparatus for powder compression and at least one sec... | 05/12/2009 |
| 7524453 | Apparatus for manufacturing ring-shaped powder compact and method of manufacturing sintered ring magnet An apparatus for manufacturing a ring-shaped powder compact (100) includes a ring-shaped die (80) having magnetic property formed by combining a plurality of arch-shaped members (81, 82, 83, 84), a lower core section (93) placed inside a ... | 04/28/2009 |
| 7479252 | Method for manufacturing throwaway tip and apparatus for aligning green compact A method for manufacturing a throwaway tip is presented in which a green compact Q obtained by press-forming raw material powder for the throwaway tip is placed and sintered on a sintering plate 8. The green compact Q is press-formed so that the density of th... | 01/20/2009 |
| 7435306 | Method for preparing rivets from cryomilled aluminum alloys and rivets produced thereby High strength aluminum alloy rivets are provided in which the aluminum alloys exhibit high strength at atmospheric temperatures and maintain high strength and ductility at extremely low temperatures. The rivets are produced from an alloy which is made by blending ab... | 10/14/2008 |
| 7431808 | Sputter target based on titanium dioxide An electrically conductive titanium dioxide sputter target with an electrical resistivity of less than 5 Ω-cm, which contains as an additive at least one doping agent or a mixture of doping agents in an amount of less than 5 mole %. The doping agent or agents are s... | 10/07/2008 |
| 7419527 | Increased density particle molding Novel powders or particles are formed by associating them with relatively small proportions of hydrolysable liquid material. The resulting particle/liquid mass is placed in a mold and sintered under conditions of heat and pressure that enables at least some of the h... | 09/02/2008 |
| 7416697 | Method for preparing a metallic article having an other additive constituent, without any melting A method for preparing an article of a base metal alloyed with an alloying element includes the steps of preparing a compound mixture by the steps of providing a chemically reducible nonmetallic base-metal precursor compound of a base metal, providing a chemically r... | 08/26/2008 |
| 7416613 | Method for compacting magnetic powder in magnetic field, and method for producing rare-earth sintered magnet A method for compacting a magnetic powder in a magnetic field comprising steps of filling a die with a magnetic powder, applying a pulsed magnetic field to the magnetic powder in the die to orientate the powder, and compressing the magnetic powder, wherein the pulse... | 08/26/2008 |
| 7393498 | Sintered metal parts and method for the manufacturing thereof A powder metal tooth part and a method of producing a toothed sintered metal part by uniaxially compacting an iron or iron-based powder having coarse particles in a single compaction step, subjecting the part to sintering, and subjecting the part to a surface densif... | 07/01/2008 |
| 7389905 | Flip chip bonding tool tip A flip chip bonding tool tip comprising a dissipative material with a resistance low enough to prevent a discharge of a charge to a device being bonded and high enough to avoid current flow large enough to damage the device being bonded is disclosed. Methods for man... | 06/24/2008 |
| 7387230 | Brazing filter metal sheet and method for production thereof In order to provide a brazing sheet having excellent workability, a powder of a brazing filler metal composition is obtained from a single type of powder or by mixing two or more powders to form the brazing filler metal composition. By powder roll compaction of the ... | 06/17/2008 |
| 7384596 | Method for producing a metallic article having a graded composition, without melting A method for preparing a metallic article made of metallic constituent elements includes furnishing a mixture of nonmetallic precursor compounds of the metallic constituent elements. The method further includes chemically reducing the mixture of nonmetallic precurso... | 06/10/2008 |
| 7378053 | Method for producing copper-based material with low thermal expansion and high heat conductivity The invention proposes a copper-based material with low thermal expansion and high thermal conductivity having good machinability and adaptability to nickel plating and also proposes a method for producing the same. The copper-based material is prepared through the ... | 05/27/2008 |
| 7371271 | Composite soft magnetic sintered material having high density and high magnetic permeability and method for preparation thereof An object of the present invention is to provide a composite soft magnetic sintered material that has high density, high mechanical strength and high relative magnetic permeability at high frequencies and, in order to achieve this object, the present invention provi... | 05/13/2008 |
| RE40273 | Method of manufacturing an archery broadhead with sintered components The present invention relates generally to a method of manufacturing broadhead components utilizing a powder injection molding (PIM) process that reduces the number of operations, thus simplifying the manufacturing process required to produce a finished product whil... | 04/29/2008 |
| 7360309 | Method of manufacturing microchannel heat exchangers A heat exchanger device includes an extruded body that includes one or more layers of channels for coolant flow therethrough, the channels generally having inner diameters of between about 50 microns to about 2000 microns. The device is formed of a material having a... | 04/22/2008 |
| 7361203 | Sliding component and method for manufacturing the same A bearing is manufactured by filling iron-based material powder and copper-based material powder in a filling portion of a mold, compacting those material powder so as to form a green compact, and then sintering the green compact. The copper-based material powder co... | 04/22/2008 |
| 7332123 | Method for manufacturing composite articles and the articles obtained therefrom A method of molding an article comprises inserting a mandrel into the cavity of the mold; placing a niobium based refractory metal intermetallic composite powder into a cavity of a mold; consolidating the niobium based refractory metal intermetallic composite around... | 02/19/2008 |
| 7329302 | Lubricants for powdered metals and powdered metal compositions containing said lubricants Particulate lubricants are disclosed which comprise discrete particles of a fatty monoamide, especially oleamide and discrete particles of at least one other powder metallurgy lubricant, which provide a synergistic free-flowing composition; there are also provided n... | 02/12/2008 |
| 7329380 | Method of controlling the dimensional change when sintering an iron-based powder mixture The invention concerns a method of controlling the dimensional change to a predetermined value including the steps of providing a first powder (A) consisting of an iron based powder (1) and copper in the form of elemental copper (2), or copper diffusio... | 02/12/2008 |
| 7325587 | Method for casting cooling holes A method for casting a cooled component includes molding a sacrificial pattern. A plurality of holes are formed through the pattern. A shell is formed over the pattern including filling the holes. The pattern is destructively removed from the shell. A metallic mater... | 02/05/2008 |
| 7311873 | Process of direct powder rolling of blended titanium alloys, titanium matrix composites, and titanium aluminides The invention relates to manufacturing of fully dense strips, plates, sheets, and foils from titanium alloys, titanium metal matrix composites, titanium aluminides, and flat multilayer composites of said materials by direct powder rolling of blended powders followed... | 12/25/2007 |
| 7311875 | High density stainless steel products and method for the preparation thereof The invention concerns a method of preparing products having a sintered density of above 7.3 g/cm3. This method comprises the steps of subjecting a water-atomised, stainless steel powder to HVC compaction with an uniaxial pressure movement with a ram spee... | 12/25/2007 |
| 7309466 | Cemented carbide body containing zirconium and niobium and method of making the same A sintered cemented carbide body (e.g., a cutting tool) and a method of making the same. The sintered cemented carbide body includes tungsten carbide, a binder phase of at least one metal of the iron group or an alloy thereof, and one or more solid solution phases. ... | 12/18/2007 |
| 7309373 | Method of making a ceramic body of densified tungsten carbide A method of making tungsten carbide and a method of making a densified tungsten carbide-containing ceramic body with a transverse rupture strength greater than 300,000 psi are disclosed. ... | 12/18/2007 |
| 7309465 | Sintered sprocket for silent chain and production method therefor A sintered sprocket for a silent chain is obtained from a material with few addition elements by a simple densifying method. The sintered sprocket is made of an ferrous material having an ovarall composition containing Cu at 1 to 2%, C at 0.5 to 0.8%, Mn as an inevi... | 12/18/2007 |
| 7309374 | Diffusion bonded nickel-copper powder metallurgy powder In contrast to current industrial practice where alloying powders are added to starting powder metallurgy compositions either as powder mixtures or fully prealloyed powders, the present invention posits a diffusion bonded nickel-copper precursor additive mixture for... | 12/18/2007 |
| 7302821 | Techniques for manufacturing a product using electric current during plastic deformation of material A technique for manufacturing a product involves receiving material, providing plastic deformation to the material to at least partially form the product, and applying electric current to the material while providing the plastic deformation to the material. The elec... | 12/04/2007 |
| 7300488 | Powder metal composition and method for producing components thereof The present invention concerns a powder metal composition for producing powder metal components comprising a Co-based pre-alloyed powder, with irregularly shaped particles comprising at least 15% by weight Cr and less than 0.3% by weight C, admixed with graphite. | 11/27/2007 |
| 7297271 | Titanium powder sintered compact Provided are a porous sintered compact suitable for a filter, a power feeder in a polymer electrolyte membrane type water electrolyzer, a current collector in a solid polymer fuel cell and in addition a liquid dispersion plate, especially an ink dispersion plate for... | 11/20/2007 |
| 7287907 | Surface densification of powder metal bearing caps A high performance main bearing cap has particular surfaces densified for improved fatigue crack resistance. The surfaces densified are the bolted face inside of a perimetral margin and outside of bolt head interface areas around the main bolt holes, the surfaces of... | 10/30/2007 |
