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| Number | Title | Issue Date |
| 8066937 | Method for making high thermal conductivity metal matrix composite Discontinuous diamond particulate containing metal matrix composites of high thermal conductivity and methods for producing these composites are provided. The manufacturing method includes producing a thin reaction formed and diffusion bonded functionally graded int... | 11/29/2011 |
| 7892481 | Manufacturing method for wear resistant sintered member, sintered valve seat, and manufacturing method therefor A manufacturing method for wear resistant sintered member is provided. The method includes: compacting a raw powder containing a matrix forming powder and a hard phase forming powder into a green compact, the matrix forming powder containing 90 mass % or more of a p... | 02/22/2011 |
| 7722803 | High carbon surface densified sintered steel products and method of production therefor A powder mixture alloy is provided for manufacturing surface densified high carbon sintered steel articles containing iron or iron pre-alloyed powder, which has been preliminary mixed with at least 0.4 wt % graphite, lubricant and optionally at least one alloying el... | 05/25/2010 |
| 7449144 | Process for manufacturing a sliding contact piece for medium to high current densities A process for manufacturing a sliding contact piece for medium to high current densities including a step of warm premixing of graphite and plastic binder, a step of cold mixing of the resulting premixture with copper, a step of pressing of the resulting main mixtur... | 11/11/2008 |
| 7396505 | Use of CoCrMo to augment biocompatibility in polycrystalline diamond compacts CoCrMo can be used to enhance biocompatibility of a sintered polycrystalline diamond compact. ... | 07/08/2008 |
| 7341689 | Pre-alloyed iron based powder The invention concerns a new pre alloyed steel powder comprising in addition to iron and inevitable impurities, by wt %, 1.3-1.7% by weight of Cr, 0.15-0.3% by weight of Mo, 0.09-0.3% by weight of Mn, not larger than 0.01 by weight of C, not larger than 0.25% of O. | 03/11/2008 |
| 7329381 | Method for fabricating a metallic article without any melting A metallic article made of metallic constituent elements is fabricated from a mixture of nonmetallic precursor compounds of the metallic constituent elements. The mixture of nonmetallic precursor compounds is chemically reduced to produce an initial metallic materia... | 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 |
| 7323136 | Containerless mixing of metals and polymers with fullerenes and nanofibers to produce reinforced advanced materials The present invention relates to fullerene, nanotube, or nanofiber filled metals and polymers. This invention stems from a cross-disciplinary combination of electromagnetic and acoustic processing and property enhancement of materials through fullerene or nanofiber ... | 01/29/2008 |
| 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 |
| 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 |
| 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 |
| 7261753 | Bonding structure and bonding method for cemented carbide element and diamond element, cutting tip and cutting element for drilling tool, and drilling tool A cutting tip for a drilling tool includes a cemented carbide cutting base 11, a diamond element 12 supported by the cutting base 11, and a bonding layer formed between the cutting base 11 and the diamond element 12 in order to bon... | 08/28/2007 |
| 7258720 | Metal powder composition for use in selective laser sintering A three-dimensional object of a desired shape is made by irradiating an optical beam on a metal powder layer to form a sintered layer and by laminating such sintered layer one above another. A metal powder composition for use in making such a three-dimensional objec... | 08/21/2007 |
| 7244318 | Method for preparation of permanent magnet A blended powder including a first powder containing an R2T14B phase as a main phase, and a second powder containing an R2T17 phase at 25 wt % or more of the whole is prepared. Herein, R is at least one element selected fr... | 07/17/2007 |
| 7214343 | Method for producing granulated powder of R—FE—B type alloy and method for producing R—FE—B type alloy sintered compact The method for producing a granulated powder of the present invention includes the steps of: preparing an R—Fe—B alloy powder; and granulating the alloy powder using at least one kind of granulating agent selected from normal paraffins, isoparaffins and depolyme... | 05/08/2007 |
| 7211218 | Polycrystalline diamond carbide composites Polycrystalline diamond (PCD) carbide composites of this invention have a microstructure comprising a plurality of granules formed from PCD, polycrystalline cubic boron nitride, or mixture thereof, that are distributed within a substantially continuous second matrix... | 05/01/2007 |
| 7198553 | Corrosion resistant abrasive article and method of making An abrasive article includes a plurality of abrasive particles securely affixed to a substrate with a corrosion resistant matrix material. The matrix material includes a sintered corrosion resistant powder and a brazing alloy. The brazing alloy includes an element w... | 04/03/2007 |
| 7153339 | Powder metallurgical compositions and methods for making the same Metallurgical powder compositions of the present invention include an iron based powder combined with a master alloy powder, as a mechanical property enhancing powder. The addition of master alloy powders has been found to enhance the mechanical properties of the fi... | 12/26/2006 |
| 7141208 | Fe-Co-B alloy target and its production method, and soft magnetic film produced by using such target, and magnetic recording medium and TMR device An Fe—Co—B alloy target, in which the largest inscribed circle depictable in regions containing no boride phases in its cross-sectional microstructure has a diameter of 30 μm or less. Its composition is represented by (FeXCo100−X)10... | 11/28/2006 |
| 7083760 | Method of forming a powder compact This invention provides a method of forming a powder compact which can produce a high density compact under a high pressure and at the same time can reduce pressure for ejecting the compact from a die. This method comprises the application step of applying a ... | 08/01/2006 |
| 7077867 | Prosthetic knee joint having at least one diamond articulation surface Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for making joints, bearing and articulation surfaces, and methods for man... | 07/18/2006 |
| 7077883 | Pre-alloyed bond powders The present invention relates to a pre-alloyed powder and its use as a bond powder in the manufacture of powder metallurgy parts and of diamond tools in particular. A pre-alloyed powder is disclosed, based on the iron-copper dual phase system, additionally containin... | 07/18/2006 |
| 7074247 | Method of making a composite abrasive compact There is provided a method of making a composite abrasive compact which comprises an abrasive compact bonded to a substrate. The abrasive compact will generally be a diamond compact and the substrate will generally be a cemented carbide substrate. The composite abra... | 07/11/2006 |
| 7014677 | Iron based sintered body excellent in enveloped casting property in light metal alloy and method for producing the same The object of the invention is to provide an iron based sintered body suitable for being enveloped in light metal alloy such as an aluminum alloy by casting, and a method for producing the same. A mixed powder is prepared by mixing an iron based powder, a copper pow... | 03/21/2006 |
| 6960319 | Tungsten alloys for penetrator application and method of making the same Disclosed is a flow-softening tungsten alloy having the general formula: W100-pAiBjCkDe wherein W is tungsten; A is one or more elements selected from the ... | 11/01/2005 |
| 6951578 | Polycrystalline diamond materials formed from coarse-sized diamond grains PCD materials of this invention comprise diamond crystals that are bonded together with a catalyst/binder material. The PCD material is prepared by combining diamond grains with a catalyst/binder material either as a premixture or by infiltration during sintering. T... | 10/04/2005 |
| 6949216 | Rapid manufacturing of carbon nanotube composite structures A system for fabricating a free form structure of a composite material including carbon nanotubes. The system includes a discharge assembly and a composite formation device operatively linked with the discharge assembly. The discharge assembly dispenses a fusing age... | 09/27/2005 |
| 6946096 | Use of powder metal sintering/diffusion bonding to enable applying silicon carbide or rhenium alloys to face seal rotors A method for making aerospace face seal rotors reinforced by rhenium metal, alloy, or composite in combination with silicon carbide or other ceramic. The resulting rotor also is disclosed. Ceramic grains, preferably silicon carbide (SiC), are mixed with powdered met... | 09/20/2005 |
| 6917011 | Method and apparatus for decapping integrated circuit packages The invention relates to a method and apparatus for decapping integrated circuit packages. The invention involves irradiating an IC package with laser radiation, typically in the UV-IR spectra and of short pulse duration. The irradiation results in ablation of the m... | 07/12/2005 |
| 6914330 | Heat sink formed of diamond-containing composite material with a multilayer coating A module serves as a heat sink for semiconductor components. The module includes a diamond/composite substrate that carries a multilayer coating on at least one substrate surface and a housing frame made from ceramics which is soldered onto the substrate. The module... | 07/05/2005 |
| 6908688 | Graded composite hardmetals A multiple-region hardmetal tool piece. The tool piece includes a hardmetal body including a hard particle component and a binder; an additional body, the additional body including a hardmetal body having a hard particle component and a binder; a metal body or a cer... | 06/21/2005 |
| 6905530 | Metallic powder-molded body, re-compacted body of the molded body, sintered body produced from the re-compacted body, and processes for production thereof In a preliminary molding step 1, a metallic powder mixture 7 obtained by blending an iron-based metal powder 7a with graphite 7b such that the graphite is present in an amount of preferably not less than 0.1% by weight, more... | 06/14/2005 |
| 6872356 | Method of forming polycrystalline diamond cutters having modified residual stresses The residual stresses that are experienced in polycrystalline diamond cutters, which lead to cutter failure, can be effectively modified by selectively thinning the carbide substrate subsequent to high temperature, high pressure (sinter) processing, by selectively v... | 03/29/2005 |
| 6827755 | High-toughness and high-strength ferritic steel and method of producing the same A high-strength and high-toughness ferritic steel having a tensile strength of not less than 1,000 MPA and a Charpy impact value of not less than 1 MJ/m2 is provided. A ferritic steel comprising, by weight, not more than 1% Si, not more than 1.25% Mn, 8 t... | 12/07/2004 |
| 6805835 | Process for sintering powder metal components A process for sintering green powder metal, metal alloy or metal composition parts employing microwave energy is described. ... | 10/19/2004 |
| 6793876 | Production process for Fe-based sintered alloy valve seat A valve seat is produced by (a) using, as a raw material powder for forming a matrix, an Fe-based alloy powder with an average particle size of 20 to 50 μm, and using, as a raw material powder for forming a hard dispersion phase, a Co-based alloy powder with an ave... | 09/21/2004 |
| 6773482 | cold work steel alloy for the manufacture of parts by powder metallurgy A cold work steel alloy for the manufacture of parts, comprising the elements C, Si, Mn, Cr, W, Mo, V, Nb, Co, S, N, Ni and accompanying elements in the concentration ranges recited in claim 1 and having an oxygen content of less than 100 ppm and a content of... | 08/10/2004 |
| 6759005 | Fabrication of B/C/N/O/Si doped sputtering targets The present invention relates to a method of manufacturing sputtering targets doped with non-metal components including boron, carbon, nitrogen, oxygen and silicon. A powder process is utilized whereby alloyed powders, which contain non-metal elements of B/C/N/O/Si ... | 07/06/2004 |
| 6696014 | Iron-based sintered powder metal body, manufacturing method thereof and manufacturing method of iron-based sintered component with high strength and high density A sintered iron-based powder metal body with lower re-compacting load and having a high density and a method of manufacturing an iron-based sintered component with fewer pores of a sharp shape and having high strength and high density.... | 02/24/2004 |
