Powder Next To Powder Patents (Class 419/6)
  • Patent number: 11148201
    Abstract: Aluminum-boron nitride nanotube composites and methods of making thereof are disclosed herein. In at least one specific embodiment, the method can include: at least partially coating boron nitride nanotubes with aluminum to make an aluminum-boron nitride nanotube layered structure, where the at least partially coating is performed by sputter deposition, and where the boron nitride nanotubes have a length of about 100 ?m to about 300 ?m; sintering the aluminum-boron nitride nanotube layered structure to make an aluminum-boron nitride nanotube pellet, where the sintering is performed by spark plasma sintering; and rolling the aluminum-boron nitride nanotube pellet to make the aluminum-boron nitride nanotube composite.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: October 19, 2021
    Assignee: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
    Inventors: Arvind Agarwal, Benjamin Boesl, Pranjal Nautiyal, Chris Rudolf, Cheng Zhang
  • Patent number: 11125021
    Abstract: A downhole cutting tool has a body that includes a cutting end, a connection end, a longitudinal axis extending axially through the body, and a gradient composition having one or more gradients. Each gradient extends a distance in a respective direction through the body. Each gradient has changing amounts of a first material in the gradient composition along the respective direction in which the gradient extends.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: September 21, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Xiaoge Gan, Youhe Zhang, Huimin Song
  • Patent number: 11097346
    Abstract: It has been found that duplex monolithic parts can be manufactured in high volume at low cost by using powder metal technology to mold and sinter an inner component of the part into an outer component of the part. This technique reduces the cost of manufacturing intricate metal products by taking advantage of the attributes of powder metal technology in making the inner component of the part. The outer component of the part can be wrought machined, stamped or forged, or made by double press double sinter or forging a powder metal component of the part. In any case, this technique can beneficially be used in making a wide variety of toroid parts, such as gears, clutches, sprags, bearing races, one-way diodes, and the like.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: August 24, 2021
    Assignee: Keystone Powdered Metal Company
    Inventors: Gary L. Anderson, Peter G. Imbrogno, Kevin Brunner
  • Patent number: 11078729
    Abstract: A method is provided for manufacturing a segment of a drill string, such as a tubular tool, from a plurality of layers. The method includes arranging a plurality of layers based on a selected length of the segment. Each of the plurality of layers includes an aperture that is received over an alignment feature that restricts movement of the plurality of layers to two or fewer degrees of freedom. A joining process is performed to join the plurality of layers, which may include at least one replacement layer.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: August 3, 2021
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Alston Jun Ngai Wong, Jia Ming Kew, Doren Hui Ping Ho, Guan Yee Chan
  • Patent number: 11001002
    Abstract: A method for the additive manufacturing of a closed-cell porous matrix is described herein. A powder-bed, additive manufacturing process is used to create a piece with partially-closed cavities filled with unfused powder. Vacuum, negative pressure, positive pressure, or solvent is used to evacuate the powder from the cavities. Finally, a fresh layer of powder is used to cover the opening of the cavity and the powder is fused on top to close the opening.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: May 11, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventor: Lawrence Kulinsky
  • Patent number: 10960633
    Abstract: Method of forming a compact based on the press forming method provides a compact having high density and not having cracking or surface roughness in a product and without compact adhesion to press forming mold wall occurring, including steps: filling raw material powder in a cavity formed by an outer mold and lower punch, or outer mold and lower punch and core rod, pressing and forming raw material powder between an outer punch and lower punch, and extracting the compact obtained out of the outer mold by the lower punch, wherein a lubricating film of a press forming mold lubricant containing oil as main component is formed on at least part of outer mold inner surface, or outer mold inner surface and core rod outer circumferential surface before filling the raw material powder in the cavity, and press forming so that compact density ratio is not less than 93%.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: March 30, 2021
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Satoshi Onodera, Katsuhiko Ueda, Tomoyuki Kohida, Junichi Ichikawa
  • Patent number: 10843260
    Abstract: A metal powder contains not less than 0.10 mass % and not more than 1.00 mass % of at least one of chromium and silicon, and a balance of copper. The total content of the chromium and the silicon is not more than 1.00 mass %. In accordance with an additive manufacturing method for this metal powder, an additively-manufactured article made from a copper alloy is provided. The additively-manufactured article has both an adequate mechanical strength and an adequate electrical conductivity.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: November 24, 2020
    Assignees: DAIHEN CORPORATION, OSAKA RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Ryusuke Tsubota, Jyunichi Tanaka, Yohei Oka, Takayuki Nakamoto, Takahiro Sugahara, Mamoru Takemura, Sohei Uchida
  • Patent number: 10414949
    Abstract: A coating applied to an article is provided. The coating has an adhesive material, in contact with at least one substrate of the article. The coating has a plurality of high density metal pellets disposed in the adhesive material. The high density metal pellets are in an amount of at least 90% by weight of the total weight percent of the coating, and each high density metal pellet has a diameter of at least 0.04 inch. The coating further has a polymer material. The coating is applied to the at least one substrate of the article to obtain a mass-enhanced, coated article. The coating has a coating thickness of at least 0.25 inch. The coating thickness and the amount of high density metal pellets are sufficient to provide an attenuation of vibration of the coated article and a reduced risk of unwanted ergonomic effects.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: September 17, 2019
    Assignee: The Boeing Company
    Inventor: Jason P. Dutter
  • Patent number: 10288394
    Abstract: A method of making a fragmenting structure for an explosive device includes placing a volume of fragments of a deformable metal material into a press mold, the fragments having sufficient surface adhesiveness to adhere to each other upon being compressed together, e.g., by coating the fragments with adhesive. The fragments are compressed together in the press mold to form the fragmenting structure as a rigid and substantially void-free structure of compression-deformed, mutually adhering metal fragments, the fragmenting structure being sized and shaped for subsequent incorporation into the explosive device. An explosive device includes an explosive charge and a fragmenting structure adjacent to the explosive charge, the fragmenting structure being a rigid and substantially void-free structure of compression-deformed, mutually adhering metal fragments. The structure may have been manufactured by the disclosed method.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: May 14, 2019
    Assignee: Textron Innovations Inc.
    Inventors: Clayton W. Miller, James A. Hollowell
  • Patent number: 10247929
    Abstract: A light irradiation device according to an embodiment is for an additive layer manufacturing apparatus. The light irradiation device includes a light condensing unit and a function unit. The light condensing unit condenses a plurality of first light beams. At least a part of the function unit is positioned at a location among the plurality of first light beams or at a location surrounded by the plurality of first light beams.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: April 2, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Ohno, Takahiro Terada, Masayuki Tanaka
  • Patent number: 10145183
    Abstract: A method is provided for manufacturing a segment of a drill string, such as a tubular tool, from a plurality of layers. The method includes arranging a plurality of layers based on a selected length of the segment. Each of the plurality of layers includes an aperture that is received over an alignment feature that restricts movement of the plurality of layers to two or fewer degrees of freedom. A joining process is performed to join the plurality of layers, which may include at least one replacement layer.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: December 4, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Alston Jun Ngai Wong, Jia Ming Kew, Doren Hui Ping Ho, Guan Yee Chan
  • Patent number: 10066670
    Abstract: The invention relates to a plain bearing composite material, comprising a supporting layer (12) made of steel, a bearing metal layer (14) made of copper or a copper alloy, which is applied to the supporting layer (12), and a functional layer (16) made of aluminum or an aluminum alloy, which is applied to the bearing metal layer (14).
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: September 4, 2018
    Assignee: Federal-Mogul Wiesbaden GmbH
    Inventors: Stefan Rittmann, Gerd Andler, Maik Wilhelm, Fabio Cosentino, Berndt-Peter Reichl
  • Patent number: 9970318
    Abstract: A method of manufacturing a shroud segment, including separately molding at least first and second parts by powder injection molding. The first part has an inner surface and at least one fluid passage in communication with the inner surface. The second part has an outer surface complementary to the inner surface of the first part. At least one of the inner and outer surfaces is formed to define a plurality of grooves. A plurality of cooling passages in fluid communication with the at least one fluid passage are defined with the plurality of grooves by interconnecting the inner and outer surfaces while the first and second parts remain in a green state. The interconnected parts are debound and sintered to fuse the parts to define at least a portion of the shroud segment including the cooling passages.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: May 15, 2018
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Orlando Scalzo, Marc Campomanes, Eric Hosking, Alain Bouthillier
  • Patent number: 9856962
    Abstract: A forged composite powder metal part, such as a CVJ inner race or bevel gear, and method of making the same are disclosed. The forged composite powder metal part includes a outer section concentrated with a first powder metal material, a inner section concentrated with a second powder metal material and a variable boundary profile between the materials of the two sections. For example, in a forged CVJ inner race, the different materials can provide improved wear resistance in the ball tracks and improved spline performance. As another example, in a forged bevel gear, the different materials can be used to create a continuous variable boundary profile that defines the depth of a harder layer over the teeth.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: January 2, 2018
    Assignee: GKN Sinter Metals, LLC
    Inventor: Timothy E. Geiman
  • Patent number: 9719176
    Abstract: Thermal barrier materials are provided that possess low heat capacity and low thermal conductivity, while at the same time, high structural integrity and robustness. In some embodiments, the disclosed coating comprises metal-containing spheres that are sintered or glued together and/or embedded in a matrix. The coating has at least 60% void volume fraction and closed porosity. The coating thickness is from 50 microns to 500 microns, and the metal spheres have an average diameter that is from about 5% to about 30% of the coating thickness. In some embodiments, the metal spheres have an average diameter that is 4-10 times smaller than the coating thickness. Thermal barrier materials with these coatings can be beneficial in engine applications, for example.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: August 1, 2017
    Assignee: HRL Laboratories, LLC
    Inventors: Tobias A. Schaedler, Adam F. Gross, Andrew P. Nowak, John A. Martin, Joanna A. Kolodziejska
  • Patent number: 9592554
    Abstract: A method for manufacturing a three-dimensional shaped object, comprising: (i) forming a powder layer on a base plate by a sliding movement of a squeegee blade, followed by forming a solidified layer by irradiating a predetermined portion of the powder layer with a light beam, thereby allowing sintering of the powder of the predetermined portion or melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, and then irradiating another predetermined portion of the new powder layer with the light beam, steps (i) and (ii) being repeatedly performed, wherein machining is performed at least once on an outer surface of a shaped object precursor obtained during manufacturing, and after machining, at least one solidified layer is formed, and followed by upper face machining to remove a raised solidified portion generated at a peripheral edge of the solidified layer.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: March 14, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Abe, Isamu Matsumoto, Masataka Takenami, Isao Fuwa, Yoshikazu Higashi, Yoshiyuki Uchinono, Norio Yoshida
  • Patent number: 9550325
    Abstract: This invention relates to a device and procedure for the production of a work piece with exact geometry and high surface quality, a form tool in particular. Preferably, the work piece is constructed using a process wherein powder coatings are applied one on top of each other, by means of compaction, said process being computer-controlled. After the powder has been compacted, the surfaces thereof are finely machined in a mechanical manner. During the entire machining process, the work piece to be produced is surrounded with powdery source material.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: January 24, 2017
    Assignee: BU:ST GmbH
    Inventors: Tim Sievers, Andreas Lohner
  • Patent number: 9527740
    Abstract: The present disclosure relates to ground expanded graphite agglomerate compositions, methods for making such agglomerates, their use as conductive additives, and conductive composites including such ground expanded graphite agglomerates. The disclosure also relates to methods for making such composites and the use of such composites in preparing thermally conductive materials. The agglomerates may be characterized by a certain softness allowing the agglomerates to dissolve, for example, through shear forces applied during compounding, thereby leading to an improved feedability and a highly homogenous distribution of the expanded graphite material in the composite matrix.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: December 27, 2016
    Assignee: IMERYS GRAPHITE & CARBON SWITZERLAND SA
    Inventors: Eusebiu Grivei, Fabio Rota, Jean-Christophe Rietsch, Simone Zuercher, Raffaele Gilardi, Michael Spahr
  • Patent number: 9385290
    Abstract: An assembly of at least one thermoelectric element capable of generating an electric current under the effect of a temperature gradient exerted between two of its sides, referred to as the contact sides, and an electrical connection means is disclosed. The assembly includes a first deformable element electrically connecting the electrical connection means to the thermoelectric element, the first element including a first side linked to the electrical connection means and a second side linked to the thermoelectric element, the first side being deformable independently from the second side and vice versa, the assembly including a second deformable element forming a heat bridge between the first and second sides of the first element. A thermoelectric module including such an assembly and a thermoelectric device including such a module are also disclosed.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: July 5, 2016
    Assignee: Valeo Systemes Thermiques
    Inventor: Cédric De Vaulx
  • Patent number: 9302236
    Abstract: Methods for forming cutting elements comprising polycrystalline materials, methods for forming polycrystalline compacts for cutting elements of a drilling tool, methods for forming polycrystalline diamond compacts, and resulting polycrystalline compacts and cutting elements are disclosed. Grains of a hard material are introduced to a press and subjected to a high-pressure, high-temperature (HPHT) process to sinter the grains. The system conditions (i.e., temperature and pressure) are then adjusted past a phase or state change point, after which, at least one of the system conditions is held during an anneal stage before the system conditions are adjusted to final levels. The resulting compacts and cutting elements may therefore include inter-granularly bonded hard material grains with a more stable microstructure (e.g., less stressed microstructure) than a polycrystalline compact and cutting element formed without an anneal stage during the HPHT process.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: April 5, 2016
    Assignee: Baker Hughes Incorporated
    Inventors: Anthony A. DiGiovanni, Danny E. Scott
  • Patent number: 9187612
    Abstract: The present disclosure relates to ground expanded graphite agglomerate compositions, methods for making such agglomerates, their use as conductive additive, and conductive composites including such ground expanded graphite agglomerates. The disclosure also pertains to methods for making such composites and the use of such composites in preparing thermally conductive materials. The agglomerates may be characterized by a certain softness allowing the agglomerates to dissolve, e.g., through shear forces applied during compounding, thereby leading to an improved feedability and a highly homogenous distribution of the expanded graphite material in the composite matrix.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: November 17, 2015
    Assignee: Imerys Graphite & Carbon Switzerland SA
    Inventors: Eusebiu Grivei, Fabio Rota, Jean-Christophe Rietsch, Simone Zuercher, Raffaele Gilardi, Michael Spahr
  • Patent number: 9080447
    Abstract: Turbine systems are provided. In one embodiment, a turbine system includes a transition duct comprising an inlet, an outlet, and a duct passage extending between the inlet and the outlet and defining a longitudinal axis, a radial axis, and a tangential axis. The outlet of the transition duct is offset from the inlet along the longitudinal axis and the tangential axis. The duct passage includes an upstream portion extending from the inlet and a downstream portion extending from the outlet. The turbine system further includes a rib extending from an outer surface of the duct passage, the rib dividing the upstream portion and the downstream portion.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: July 14, 2015
    Assignee: General Electric Company
    Inventors: Kevin Weston McMahan, Jeffrey Scott LeBegue, Jaime Javier Maldonado, Daniel Jackson Dillard, James Scott Flanagan
  • Publication number: 20150125334
    Abstract: A process and materials are disclosed to enable the formation of metal powder-polymer/plastic preform articles by three dimensional printing a green state article, debinding the polymer/plastic from the metal powder, and sintering the article to a final shape.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Applicant: American Hakko Products, Inc.
    Inventors: Takashi Uetani, Chris Stuber
  • Publication number: 20150118511
    Abstract: A first die is sequentially filled with a first-layer mixed powder that is a mixture of a basic metal powder having a small particle size and a low-melting-point lubricant powder, a second-layer mixed powder that is a mixture of the basic metal powder having a large particle size and the low-melting-point lubricant powder, and a third-layer mixed powder that is a mixture of the basic metal powder having a small particle size and the low-melting-point lubricant powder. A first pressure is applied to each mixed powder to form an intermediate green compact. The intermediate green compact is heated, and placed in a second die. A second pressure is applied to the intermediate green compact to form a high-density three-layer green compact.
    Type: Application
    Filed: April 22, 2013
    Publication date: April 30, 2015
    Inventors: Kazuhiro Hasegawa, Yoshiki Hirai
  • Publication number: 20150099104
    Abstract: In at least one embodiment, a single sintered magnet is provided having a concentration profile of heavy rare-earth (HRE) elements within a continuously sintered rare-earth (RE) magnet bulk. The concentration profile may include at least one local maximum of HRE element concentration within the bulk such that a coercivity profile of the magnet has at least one local maximum within the bulk. The magnet may be formed by introducing alternating layers of an HRE containing material and a magnetic powder into a mold, pressing the layers into a green compact, and sintering the green compact to form a single, unitary magnet.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 9, 2015
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Feng Liang, C Bing Rong, Michael W. Degner
  • Patent number: 8986604
    Abstract: A method of forming an article includes forming a layer of a mixture of at least two distinct metal powders selected such that when combined they are chemically in the proportions of a superalloy containing a gamma prime phase, and fusing the powders locally without diffusion to define the shape of a part of the article such that the materials of the distinct metal powders remain substantially chemically segregated forming regions of different chemical composition. The method further includes repeating the forming and fusing until the derived article is formed, and heat treating the finished article such that at least one of the distinct separate materials diffuses to form a gamma prime phase containing superalloy with the other.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: March 24, 2015
    Assignee: Materials Solutions
    Inventor: Gordon Green
  • Publication number: 20150079416
    Abstract: A tool for a high temperature, high pressure apparatus includes a working layer of a first hard metal composition of material and at least one supporting layer of a second hard metal composition of material attached to the working layer. The first hard metal composition has a mean linear intercept of less than about 0.4 ?m of a binder phase. The working layer has a top and bottom surface. At least one supporting layer of a second hard metal composition of material is attached to the working layer. The at least one supporting layer includes an upper portion. An interface region is formed by the bottom surface of the working layer and the upper portion of the at least one supporting layer. The bottom surface and upper portion have a corresponding shape, wherein the bottom surface and upper portion are bonded to form the corresponding shape in the interface region.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventors: Stefan Ederyd, Erin Delmotte
  • Patent number: 8980166
    Abstract: The invention relates to a method for producing a strand-like, particularly band-like semi-finished part for electrical contacts, wherein the semi-finished part has a top side intended for making the electrical contact, said top side made from a silver-based composite material in which one or multiple metal oxides or carbon are embedded, and has a carrier layer supporting the composite material made of silver or a silver-based alloy, said method having the following steps: Powder-metallurgic production of a block made from the silver-based composite material, encasing of the block made of the composite material with a powder made primarily of silver, compressing the block, encased by the metal powder, to condense the metal powder, sintering the compressed block, reshaping the sintered block by extrusion pressing, creating a partial strand with a top side made from composite material and a bottom side made from silver or a silver-based alloy.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: March 17, 2015
    Assignee: Doduco GmbH
    Inventors: Helmut Heinzel, Andreas Kraus, Evelyn Mahle-Moessner, Johann Wenz
  • Patent number: 8951464
    Abstract: One aspect relates to a medical implant, for example, implantable stimulation electrode, having a tight substrate and a porous contact region. One aspect also relates to a lead of a cardiac pacemaker having an implantable stimulation electrode and to a method for manufacturing a medical implant, for example, an implantable stimulation electrode. A medical implant according to one aspect is characterized in that the implant includes a sintered body with graduated porosity.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: February 10, 2015
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Heiko Specht, Andreas Reisinger, Goran Pavlovic
  • Patent number: 8940114
    Abstract: Fabricating a core of a component (34A, 34B, 34C) from a stack (25, 36) of sheets (20) of material with cutouts (22A) in the sheets aligned to form passages (38) in the core. A casing preform (28) is then fitted over the core. The preform is processed to form a casing (29) that brackets at least parts of opposed ends of the stack. Shrinkage of the casing during processing compresses (46) the sheets together. The preform may slide (52) over the core, and may be segmented (28A, 28B, 28C) to fit over the core. A hoop (66) may be fitted and compressed around the segmented casing (29A, 29B, 29C).
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: January 27, 2015
    Assignees: Siemens Energy, Inc., Mikro Systems, Inc.
    Inventors: Allister W. James, Gary B. Merrill, Iain A. Fraser
  • Patent number: 8926896
    Abstract: One embodiment includes providing a first layer including a first powder material and a second layer including a second powder material over the first layer, and compacting the first powder material and the second powder material using at least a first magnetic field.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: January 6, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Shekhar G. Wakade, Mark A. Osborne, William L. Miller
  • Publication number: 20140377118
    Abstract: An ultrasonic welding tool fabricated of powder metal material includes a body and a welding tip extending axially from the body to a working end. The powder metal material can be ferrous-based and admixed with additives, such as alumina, carbide, ferro-molybdenum, ferro-nickel, chrome or tribaloy. An exposed surface of the welding tip can comprise Fe3O4 oxides. The tool is compacted to the desired shape and sintered. The body can include a different second material compacted separately from the welding tip and then joined to the tip and sintered.
    Type: Application
    Filed: September 12, 2014
    Publication date: December 25, 2014
    Inventor: Denis Christopherson, JR.
  • Patent number: 8889065
    Abstract: An improved sintered material and product. A nanometer size reinforcement powder is mixed with a micron size titanium or titanium alloy powder. After the reinforcement powder is generally uniformly dispersed, the powder mixture is compacted and sintered, causing the nano reinforcement to react with the titanium or titanium alloy, producing a composite material containing nano and micron size precipitates that are uniformly distributed throughout the material.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: November 18, 2014
    Assignee: IAP Research, Inc.
    Inventors: Bhanumathi Chelluri, Edward Arlen Knoth, Edward John Schumaker, Ryan D. Evans, James. L. Maloney, III
  • Patent number: 8858869
    Abstract: A method of treating a porous work piece includes infiltrating a liquid metallic alloy into surface porosity of a work piece and isothermally solidifying the liquid metallic alloy to at least partially fill the surface porosity.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: October 14, 2014
    Assignee: Aerojet Rocketdyne of DE, Inc.
    Inventor: Clifford C. Bampton
  • Publication number: 20140294652
    Abstract: A method of making a combustion turbine component includes assembling a plurality of metallic combustion turbine subcomponent greenbodies together to form a metallic greenbody assembly and sintering the metallic greenbody assembly to thereby form the combustion turbine component. Each of the plurality of metallic combustion turbine subcomponent greenbodies may be formed by direct metal fabrication (DMF). In addition, each of plurality of metallic combustion turbine subcomponent greenbodies may include an activatable binder and the activatable binder may be activated prior to sintering.
    Type: Application
    Filed: December 30, 2013
    Publication date: October 2, 2014
    Inventors: Jay A. Morrison, Jay E. Lane, Allister W. James, Michael Appleby, Iain Fraser, John Paulus
  • Patent number: 8841005
    Abstract: An article includes a working portion including cemented carbide, and a heat sink portion in thermal communication with the working portion. The heat sink portion includes a heat sink material having a thermal conductivity greater than a thermal conductivity of the cemented carbide. Also disclosed are methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat sink material having a thermal conductivity that is greater than a thermal conductivity of the cemented carbide. The heat sink portion conducts heat from the working portion.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: September 23, 2014
    Assignee: Kennametal Inc.
    Inventors: Prakash K. Mirchandani, Alfred J. Mosco, Eric W. Olsen, Steven G. Caldwell
  • Patent number: 8828116
    Abstract: There is provided a metal powder for use in a selective laser sintering method for producing a three-dimensional shaped object, wherein the metal powder comprises a powder mixture of a precipitation-hardening metal composition. In particular, the metal powder of the present invention is configured to have a Fe-based component powder and a Ni-based component powder which are individually included in the powder mixture wherein a powder made of an alloy of Fe-based and Ni-based components is not included as a main powder in the powder mixture.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: September 9, 2014
    Assignee: Panasonic Corporation
    Inventor: Isao Fuwa
  • Publication number: 20140234650
    Abstract: According to the invention, there are disclosed a power metallurgy composite cam sheet and a fabrication method thereof. The power metallurgy composite cam sheet is constructed by combining a power metallurgy cam be composited on a surface of a matrix. The fabrication method of the power metallurgy composite cam sheet includes sinter welding, braze welding, argon arc welding, laser welding, hot pressing and other methods. The powder metallurgy composite cam sheet fabricated by the invention has merits of stable size, good impact toughness, good abrasion resistance, low cost and so on, so that it can replace an integral cam sheet that is currently fabricated by forging, drawing, power metallurgy or other process. It is suitable for the case where a hollow camshaft is prepared by mechanical assembly, hydraulic forming, welding or other process, so that the usage requirements of an assembled camshaft can be met.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 21, 2014
    Inventors: Linshan Wang, Limin Wang, Xuebing Liang, Xiaojiang Dong, Lei Wang
  • Patent number: 8802004
    Abstract: The invention relates to components which are produced or processed by powder metallurgy, and to processes for producing components of this type. The components produced by powder metallurgy are intended both to have porous regions and to provide fluid-tight properties, and it should also be possible to produce them at correspondingly low cost and suitably flexibly. For this purpose, a component of this type has at least one porous region, which is formed from an intermetallic phase or solid solutions. However, it may also have a corresponding surface coating. Moreover, in a component of this type there is at least one areal fluid-tight region which is formed from a meta or metal alloy of the corresponding intermetallic phase or solid solution.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: August 12, 2014
    Assignees: Alantum Corporation, Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Dirk Naumann, Thomas Weissgarber, Alexander Bohm
  • Publication number: 20140212318
    Abstract: A method is of producing a circular saw blade having cooling channels. In that case, placing of a plurality of thread-shaped bodies on a first circular disc of plastic material is carried out in such a manner that each of the thread-shaped bodies is oriented in radial direction. A second circular disc of plastic material is then placed on the first disc and the thread-shaped bodies. Subsequently, pressure is exerted on the second disc in the direction of the first disc. Removal of the plate-shaped bodies from the compressed disc pair is thereafter carried out, whereby cooling channels are created. Finally, sintering of the disc pair in order to obtain a circular saw blade having cooling channels running in radial direction is carried out.
    Type: Application
    Filed: April 1, 2014
    Publication date: July 31, 2014
    Inventor: Arno FRIEDRICHS
  • Patent number: 8782897
    Abstract: A dental implant for preventing elution of metal when applied within an oral cavity and preventing the occurrence of mismatching (bumpy occlusion or the like) when fixed in place, and its manufacturing method are provided. The abutment is manufactured through steps including molding a titanium molded body composition to obtain a titanium molded body, molding a ceramic molded body composition to obtain a ceramic molded body, assembling the titanium molded body and the ceramic molded body together to obtain an assembled body, degreasing the assembled body so that the titanium molded body becomes a titanium degreased body and the ceramic molded body becomes a ceramic degreased body, and sintering the assembled body to transform the titanium degreased body into a titanium member and to transform the ceramic degreased body into a ceramic member so that the titanium member and the ceramic member are firmly fixed and joined together.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: July 22, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Junichi Hayashi, Michio Ito
  • Patent number: 8770324
    Abstract: Partially formed earth-boring rotary drill bits comprise a first less than fully sintered particle-matrix component having at least one recess, and at least a second less than fully sintered particle-matrix component disposed at least partially within the at least one recess. Each less than fully sintered particle-matrix component comprises a green or brown structure including compacted hard particles, particles comprising a metal alloy matrix material, and an organic binder material. The at least a second less than fully sintered particle-matrix component is configured to shrink at a slower rate than the first less than fully sintered particle-matrix component due to removal of organic binder material from the less than fully sintered particle-matrix components in a sintering process to be used to sinterbond the first less than fully sintered particle-matrix component to the first less than fully sintered particle-matrix component.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: July 8, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Redd H. Smith, Nicholas J. Lyons
  • Publication number: 20140178240
    Abstract: A bearing forming method in which different properties of powder materials are compressed and molded in batches and then the materials are together sintered to form an integrated porous bearing. By means of the bearing forming method, the necessary material properties of a part of the bearing are enhanced. Moreover, the material cost and the manufacturing cost are greatly lowered.
    Type: Application
    Filed: December 23, 2012
    Publication date: June 26, 2014
    Applicant: ASIA VITAL COMPONENTS CO., LTD.
    Inventor: Wen-Hao Liu
  • Publication number: 20140170012
    Abstract: The invention relates to an additive manufacturing apparatus and method. According to the invention, an additive manufacturing apparatus includes a material supply system. The material supply system delivers layers of partially sintered pulverant material to an additive manufacturing device.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: United Technologies Corporation
    Inventors: Robert P. Delisle, Christopher F. O'Neill, Paul R. Faughnan, Jesse R. Boyer
  • Patent number: 8748006
    Abstract: The invention relates to a slide bearing composite material having at least one carrier layer and a sintered bearing metal layer. The sintered bearing metal layer is designed in at least one layer region as a gradient layer.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: June 10, 2014
    Assignee: Federal-Mogul Wiesbaden GmbH
    Inventors: Holger Schmitt, Thomas Enghof, Daniel Meister
  • Publication number: 20140154126
    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.
    Type: Application
    Filed: November 18, 2013
    Publication date: June 5, 2014
    Inventor: Robert G. Lee
  • Publication number: 20140153687
    Abstract: The invention relates to a fuel component and a method for manufacturing of a fuel component. The fuel component is adapted to be used in fission reactors. The fuel component comprises a core consisting of a first material, and a layer consisting of a second material. The layer encloses at least partly the core. The first material comprises a fissile substance. The fuel component comprises an intermediate layer between the core and the layer. The intermediate layer has a material gradient that comprises a decrease of the concentration of the first material from the core to the layer and an increase of the concentration of the second material from the core to the layer.
    Type: Application
    Filed: February 23, 2011
    Publication date: June 5, 2014
    Applicant: WESTINGHOUSE ELECTRIC SWEDEN AB
    Inventors: Lars Hallstadius, Karin Backman, Björn Rebensdorff, Hans Widegren
  • Patent number: 8728388
    Abstract: A method is provided that includes depositing metal powder over a seed crystal having a predetermined primary orientation, scanning an initial pattern into the metal powder to melt or sinter the deposited metal powder, and re-scanning the initial pattern to re-melt the scanned metal powder and form an initial layer having the predetermined primary orientation. The method further includes depositing additional metal powder over the initial layer, scanning an additional pattern into the additional metal powder to melt or sinter at least a portion of the additional metal powder, re-scanning the additional pattern to re-melt a portion of the initial layer and the scanned deposited additional metal powder to form a successive layer having the predetermined primary orientation, and repeating the steps of depositing additional metal powder, scanning the additional pattern, and re-scanning the additional pattern, until a final shape of the component is achieved.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: May 20, 2014
    Assignee: Honeywell International Inc.
    Inventors: Mark C. Morris, Tom Strangman, Yiping Hu
  • Publication number: 20140131050
    Abstract: A method of making a composite downhole article is disclosed. The method include forming at least one removable core member comprising a first metallic material that is removable in a wellbore fluid at a first removal rate; and disposing at least one outer member on the core member, the outer member comprising a second material that is removable in the wellbore fluid at a second removal rate, wherein the removable core member has a composition gradient or a density gradient, or a combination thereof, and wherein the first removal rate is substantially greater than the second removal rate. A method of using a composite downhole article is also disclosed. The method includes forming a composite downhole article as described above; using the article to perform a first wellbore operation; exposing the article to the wellbore fluid; and selectively removing the second removable member.
    Type: Application
    Filed: January 17, 2014
    Publication date: May 15, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Zhiyue Xu, Michael Johnson
  • Patent number: 8703045
    Abstract: The present invention relates to a method of manufacturing a multiple composition component 10, comprising: arranging first, second and third constituent parts 40, 30, 42 having first, second and third compositions respectively A, B, C so that the first constituent part 40 shares a first boundary with the second constituent part 30 and the second constituent part 30 shares a second boundary with the third constituent part 40. The first, second and third constituent parts 40, 30, 42 are each either a powder or a solid so that the first and second boundaries are each a solid adjacent to a powder. The arrangement is then processed so as to form a single solid component having first, second and third regions 16, 18, 20 having first, second and third compositions A, B, C respectively.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: April 22, 2014
    Assignee: Rolls-Royce PLC
    Inventors: Robert J. Mitchell, Catherine M. F. Rae, Mark C. Hardy, Shaun R. Holmes