Powder Next To Solid Patents (Class 419/8)
-
Patent number: 8283046Abstract: 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.Type: GrantFiled: January 30, 2007Date of Patent: October 9, 2012Assignee: Komatsu Ltd.Inventor: Takemori Takayama
-
Patent number: 8262817Abstract: A first-stage turbine that is adapted for receiving high energy air directly from a combustion chamber in a gas turbine engine auxiliary power unit includes a disk formed from a first alloy and having an outer surface, and a unitary blade wheel formed from a second alloy that is different than the first alloy. The unitary blade wheel includes an annular member having an inner surface that is joined to the disk, and blades that are integrally formed with the annular member.Type: GrantFiled: June 11, 2007Date of Patent: September 11, 2012Assignee: Honeywell International Inc.Inventors: Scott J. Marshall, Victor M. Reyes, Timothy R. O'Brien, Huy Tran, Andrew F. Szuromi
-
Patent number: 8257795Abstract: A paste including metal or metal alloy particles (which are preferably silver or silver alloy), a dispersant material, and a binder is used to form an electrical, mechanical or thermal interconnect between a device and a substrate. By using nanoscale particles (i.e., those which are less than 500 nm in size and most preferably less than 100 nm in size), the metal or metal alloy particles can be sintered at a low temperature to form a metal or metal alloy layer which is desired to allow good electrical, thermal and mechanical bonding, yet the metal or metal alloy layer can enable usage at a high temperature such as would be desired for SiC, GaN, or diamond (e.g., wide bandgap devices). Furthermore, significant application of pressure to form the densified layers is not required, as would be the case with micrometer sized particles.Type: GrantFiled: January 24, 2008Date of Patent: September 4, 2012Assignee: Virginia Tech Intellectual Properties, Inc.Inventors: Guo-Quan Lu, Guangyin Lei, Jesus Calata
-
Publication number: 20120214014Abstract: The invention relates to a method for producing a composite part, the composite part comprising at least one powder metal part compacted from a powdery material and at least one solid part. The powdery material is compacted to a powder metal part inside the working chamber of a press, especially a pressing tool of a press, and the solid part is at least partially fed to the working chamber in the same step, especially in the same working cycle of the press so that the composite part is produced within one working cycle.Type: ApplicationFiled: March 22, 2012Publication date: August 23, 2012Inventors: Rainer Schmitt, Frank Sablotny
-
Patent number: 8206646Abstract: Methods for manufacturing sputtering target assemblies and assemblies thereof are provided, particularly targets made of powders. Powders are adhered to a backing plate by use of a vacuum hot press, the powder preferably contacted by non-planar surfaces, and is compressed with at least about 95% density and substantially simultaneously diffusion-bonded to the backing plate.Type: GrantFiled: December 22, 2006Date of Patent: June 26, 2012Assignee: Praxair Tecnology, Inc.Inventors: Chi-Fung Lo, Darryl Draper
-
Publication number: 20120141317Abstract: A method for manufacturing sintered magnet poles is described. The mould is filled with a vitrifiable base material powder and closed with a plate. A magnetic field aligns the powder and a plate pressed onto the powder establishes a compact that holds the alignment in place. The compact is sintered to form a sintered magnet pole. The mould forms a protective cover of the sintered magnet pole and the plate forms a base plate of a magnet pole piece. Furthermore, a magnet pole piece is provided which has a magnet pole and a base plate which is fixed to a protective cover so that the base plate and the protective cover surround the magnet pole. The base plate and/or the protective cover of the magnet pole piece has at least one element that provides a geometrical locking of the magnet pole to the base plate and/or the protective cover.Type: ApplicationFiled: February 7, 2012Publication date: June 7, 2012Inventors: Erik Groendahl, Henrik Stiesdal
-
Publication number: 20120121427Abstract: A joining element, for example, an adapter, for connecting a rotor blade to a rotor disc or a rotor ring, or a rotor blade per se of an aircraft engine is disclosed. The joining element has a base body and a joining surface, with the joining surface formed by a fusion weldable coating made of a compressed powder that is connected in a positive fit to a contour of the base body. A method for the production of such a joining element, as well as an integrally bladed rotor, is also disclosed.Type: ApplicationFiled: September 13, 2011Publication date: May 17, 2012Applicant: MTU Aero Engines GmbHInventors: Joachim BAMBERG, Wilhelm Satzger
-
Patent number: 8178212Abstract: Method for chemical bonding of fiberglass fibers to steel surfaces to prepare the steel for bonding with carbon composite material. This fiber-bonding step greatly increases the strength of the subsequent metal-composite bond. The fiberglass fibers which are chemically bonded to the steel provide a high surface area interface to entangle with carbon fibers in the composite component, and thereby inhibit crack formation on the boundary surface between the steel and composite components when they are bonded together.Type: GrantFiled: October 24, 2008Date of Patent: May 15, 2012Assignees: Honeywell International Inc., The University of Notre Dame du LacInventors: Allen H. Simpson, Mark L. La Forest, Alexander Mukasyan
-
Publication number: 20120099923Abstract: A method of forming a hybrid component comprising at least two metallic parts, the method comprising preparing a first metallic part by forming at least one macroscopic interfacing feature on an interfacing surface of the part; positioning the first part in a mould tool; introducing a metallic powder into the mould tool and around the interfacing feature(s); and consolidating the metallic powder by a Hot-Isostatic Pressing (HIP) process to form a second metallic part which encapsulates the interfacing feature(s) to provide a mechanical connection between the first and second parts of the component. Also, a hybrid component so formed. The metallic parts may have substantially different material properties.Type: ApplicationFiled: March 29, 2010Publication date: April 26, 2012Applicant: AIRBUS OPERATIONS LIMITEDInventors: Jonathan Meyer, Daniel Johns
-
Publication number: 20120088184Abstract: The present invention provides an improved metal separator for a fuel cell and a method for preparing same. More particularly, the invention provides a metal separator for a fuel cell, whereby the separator has a surface structure that imparts reduced contact resistance, improved corrosion resistance, and stable electrical conductivity. The invention further provides a surface treatment method for making the metal separator of the invention. The inventive method comprises sintering Fe—Cr—B—V-based powder on the surface of a metal foam to form an alloy layer; and forming a nitride layer of a (Cr—V—B)N-based material while supplying nitrogen gas on the surface of the alloy layer.Type: ApplicationFiled: November 22, 2010Publication date: April 12, 2012Applicant: HYUNDAI MOTOR COMPANYInventors: Young Min Nam, Yoo Chang Yang, Suk Min Baeck, Seung Gyun Ahn
-
Patent number: 8119061Abstract: A method for attaching a metal structure to a dental coping having opposite sides in the preparation or repair of a dental restoration comprising the steps of: (1) forming a dental material composition comprising high-fusing temperature metal particles in a range of between 1-10 weight percent with the high-fusing temperature metal particles having at least 30% thereof selected from the platinum group of metals, low fusing temperature metal particles having a melting temperature below the melting temperature of the high-fusing particles with the low fusing temperature metal particles being present above at least about 90 weight percent of the total composition and being composed primarily of gold, and a small measure of borate fluxes in a range of between 0.1 to 2.Type: GrantFiled: December 15, 2008Date of Patent: February 21, 2012Inventors: Itzhak Shoher, Aharon Whiteman
-
Publication number: 20120039738Abstract: A method of manufacturing an assembly, including a plurality of blades mounted in a platform preparing a mixture of metal powder and thermoplastic binder, includes manufacturing the blades separately from the platform, and finishing the blades after the manufacturing. The method also includes injecting the mixture into a mold to obtain a platform blank, removing the binder from the platform blank prior to assembling the finished blades with the blank, inserting one end of the finished blades into a housing formed in the platform blank in order to assemble the assembly, and sintering the assembly comprising the platform blank and the finished blades to unify the assembly.Type: ApplicationFiled: April 16, 2010Publication date: February 16, 2012Applicant: SNECMAInventors: Jean-Paul Benard, Vanessa Mengeling, Jean-Baptiste Mottin
-
Patent number: 8110143Abstract: The present invention is directed to composite metal foams comprising hollow metallic spheres and a solid metal matrix. The composite metal foams show high strength, particularly in comparison to previous metal foams, while maintaining a favorable strength to density ratio. The composite metal foams can be prepared by various techniques, such as powder metallurgy and casting.Type: GrantFiled: December 16, 2009Date of Patent: February 7, 2012Assignee: North Carolina State UniversityInventor: Afsaneh Rabiei
-
Publication number: 20120019979Abstract: An anode with a pellet wherein the pellet has a bottom surface. The anode further also has an anode wire with a primary axis and extending beyond the pellet along the primary axis wherein the anode wire has a cross-section perpendicular to the primary axis wherein the cross-section of the anode wire breaches the bottom surface.Type: ApplicationFiled: September 30, 2011Publication date: January 26, 2012Applicant: Kemet Electronics CorporationInventor: John D. Prymak
-
Publication number: 20120003493Abstract: The invention relates to a composite component (10) having a carrier (12) made of powder metal and a wear-resistant body (14) which is made of cemented carbide and is embedded at least in certain portions in the carrier (12), wherein the cemented carbide body (14) is metalized at least in certain portions. The invention also relates to a method for producing such a composite component.Type: ApplicationFiled: March 22, 2011Publication date: January 5, 2012Applicant: Kennametal Inc.Inventors: Klaus Schon, Jacques Pirlet, Robert Koenig, Dirk Heesen, Bernhard Schuetter, Leon Simmen, Beat Hofer
-
Publication number: 20110286855Abstract: Devices and methods provide for an impeller for use in a compressor. A method for manufacturing the impeller includes: attaching an intermediate layer to a base metal by placing a first metal powder into a gap between a first insert and the base metal; processing with hot isostatic pressing the base metal, the first metal powder and the first insert such that the intermediate layer is bonded to the base metal; attaching an external layer to the intermediate layer by placing a second powder into a gap between a second insert and the intermediate layer; processing the base metal, the intermediate layer, the second metal powder and the second insert via hot isostatic pressing such that the external layer is bonded to the intermediate layer; and removing the second insert to form the impeller, wherein the external layer is corrosion resistant.Type: ApplicationFiled: April 1, 2011Publication date: November 24, 2011Inventors: Filippo CAPPUCCINI, Massimo GIANNOZZI, Gabriele MASI, Federico IOZZELLI
-
Publication number: 20110286875Abstract: A bearing material and a method for the manufacture of a bearing having a lining of the bearing material is described, the bearing material comprising: in wt %: 4-12 tin; 0.1-2 nickel; 1-6 bismuth; 0.01-less than 0.10 alumina; balance copper apart from incidental impurities.Type: ApplicationFiled: November 25, 2009Publication date: November 24, 2011Applicants: MAHLE INTERNATIONAL GMBHInventors: Raymond Brigdeman, Janette Johnston
-
Publication number: 20110277812Abstract: A multilayered structure may include a doped buffer layer on a transparent conductive oxide layer.Type: ApplicationFiled: May 13, 2011Publication date: November 17, 2011Inventors: Benyamin Buller, Akhlesh Gupta
-
Patent number: 8043655Abstract: Three dimensionally large metallic structures comprised of submicron grain sizes are produced by a process which includes directing a supersonic powder jet against a substrate such that the powder adheres to the substrate and to itself to form a dense cohesive deposit. The powder jet may be comprised of refractory metal powders. The powder may be deposited by a supersonic jet and may be extruded by Equi channel angular extrusion.Type: GrantFiled: October 6, 2008Date of Patent: October 25, 2011Assignee: H.C. Starck, Inc.Inventors: Steven A. Miller, Prabhat Kumar
-
Patent number: 8039175Abstract: The present invention provides a method for producing a multilayer structure, comprising the steps of: providing a composition comprising a Fe—Cr alloy powder and at least one of the oxides of Fe, Cr, Ni, Co, Zn, Cu; forming a first layer of said composition; forming at least one additional layer on one side of said first layer; heat treating said layers in an oxygen-containing atmosphere; and sintering in a reducing atmosphere so as to provide a final alloy, wherein the amount of Fe in the final alloy of the first layer after the sintering step is in the range of from about 50-90% by weight, based on the total weight of the final alloy.Type: GrantFiled: January 12, 2006Date of Patent: October 18, 2011Assignee: Technical University of DenmarkInventors: Søren Linderoth, Peter Halvor Larsen
-
Publication number: 20110240115Abstract: A solar cell with a doped buffer layer includes silicon and tin.Type: ApplicationFiled: March 18, 2011Publication date: October 6, 2011Inventors: Benyamin Buller, Dale Roberts, Rui Shao
-
Publication number: 20110236721Abstract: Maraging steel compositions, methods of forming the same, and articles formed therefrom comprising, by weight, 15.0 to 20.0% Ni, 2.0 to 6.0% Mo, 3.0 to 8.0% Ti, up to 0.5% Al, the balance Fe and residual impurities. The composition may be a first layer of a composite plate, and may have a second layer deposited on the first layer, the second layer having a composition comprising, by weight, 15.0 to 20.0% Ni, 2.0 to 6.0% Mo, 1.0 to 3.0 Ti, up to 0.5% Al, the balance Fe and residual impurities. The first layer may have a hardness value ranging from 58 to 64 RC, and the second layer may have a hardness value ranging from 48 to 54 RC. The first layer may be formed employing powdered metallurgical techniques. Articles formed from the compositions include armored plate.Type: ApplicationFiled: June 8, 2011Publication date: September 29, 2011Applicant: ATI Properties, Inc.Inventors: Ronald E. Bailey, Thomas R. Parayil, Timothy M. Hackett, Tong C. Lee
-
Patent number: 8007922Abstract: 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: GrantFiled: October 25, 2007Date of Patent: August 30, 2011Assignee: TDY Industries, IncInventors: Prakash K. Mirchandani, Alfred J. Mosco, Eric W. Olsen, Steven G. Caldwell
-
Publication number: 20110198983Abstract: A method is provided for producing a wire or tape, especially for use as an electrode or electrode tip in spark plugs. The method includes the following steps: (a) producing an intermetallic compound having a melting point above 1700° C.; (b) grinding the intermetallic compound; (c) mixing the intermetallic compound with metal powder; (d) introducing the mixture obtained in step (c) in a tube produced from ductile material; and (e) shaping the tube filled in step (d) to give a wire or tape. Also provided are a wrapped wire or wrapped tape, especially a semifinished product for producing electrodes or electrode tips of spark plugs.Type: ApplicationFiled: March 29, 2007Publication date: August 18, 2011Applicant: W.C. HERAEUS GMBHInventors: Harald Manhardt, David Francis Lupton, Tanja Eckardt, Holger Zingg
-
Patent number: 7998401Abstract: A method for producing an aluminum composite material having a great content of a ceramics with ease. The method (a) mixes an aluminum powder and ceramic particles, to prepare a mixed material, (b) subjects the mixed material to electric pressure sintering together with a metal sheet material, to form a clad material including a sintered product covered with the metal sheet material, and (c) subjects the clad material to a plastic working to prepare an aluminum composite material. In the (b) subjecting, the mixed material is sandwiched between a pair of metal sheets or a powder of the mixed material is held in a metal container, the mixed material is placed in a forming die in a state in which the metal sheet material is pressurized by a punch, and the mixed material is compressed together with the metal sheet material. The metal sheet material is made of aluminum or stainless steel.Type: GrantFiled: December 28, 2005Date of Patent: August 16, 2011Assignees: Nippon Light Metal Company, Ltd., Nikkeikin Aluminium Core Technology Company, Ltd.Inventors: Shigeru Okaniwa, Shigeki Aoyama, Toshimasa Nishiyama, Hiroaki Kita
-
Patent number: 7989084Abstract: A powdered metal assembly includes a mechanical part, a powdered metal part and a fastener configured to join the mechanical part and the powdered metal part. In another aspect of the disclosure, a method for manufacturing a powdered metal assembly may include the steps of positioning the mechanical part in a forming apparatus, providing a powdered metal into the forming apparatus, compressing the powdered metal to form and bond a powdered metal part to the mechanical part to form the powdered metal assembly, and removing the powdered metal assembly from the forming apparatus.Type: GrantFiled: May 9, 2008Date of Patent: August 2, 2011Assignee: Motor Excellence, LLCInventor: Thomas Janecek
-
Publication number: 20110182761Abstract: A stator for a helicoidal down-hole drilling motor is formed with a through-hole, in addition to the main stator bore. The through-hole can be a straight hole extending parallel to the axis of the stator, or a hole of helical form, the helix extending about the axis of the stator. The through-hole can be used to accommodate a communications cable extending through the through-hole, and/or the through-hole can be connected to a fluid supply. The stator is produced from metal-based powder by producing an insert of accurate dimensions corresponding to the dimensions of a bore to be created in the finished stator, the bore having a length of at least 750 mm, supporting the insert within a mould cavity, filling the mould cavity with metal-based powder, subjecting the powder to isostatic pressing, and subsequently removing the material of the insert.Type: ApplicationFiled: March 20, 2009Publication date: July 28, 2011Applicant: Advanced Interactive Materials Science LimitedInventor: Geoffrey Frederick Archer
-
Publication number: 20110162612Abstract: A chromium-iron alloy comprises in weight %, 1 to 3% C, 1 to 3% Si, up to 3% Ni, 25 to 35% Cr, 1.5 to 3% Mo, up to 2% W, 2.0 to 4.0% Nb, up to 3.0% V, up to 3.0% Ta, up to 1.2% B, up to 1% Mn and 43 to 64% Fe. In a preferred embodiment, the chromium-iron alloy comprises in weight %, 1.5 to 2.3% C, 1.6 to 2.3% Si, 0.2 to 2.2% Ni, 27 to 34% Cr, 1.7 to 2.5% Mo, 0.04 to 2% W, 2.2 to 3.6% Nb, up to 1% V, up to 3.0% Ta, up to 0.7% B, 0.1 to 0.6% Mn and 43 to 64% Fe. The chromium-iron alloy is useful for valve seat inserts for internal combustion engines such as diesel or natural gas engines.Type: ApplicationFiled: January 5, 2010Publication date: July 7, 2011Applicant: L.E. Jones CompanyInventors: Cong Yue Qiao, Todd Trudeau
-
Patent number: 7959706Abstract: A sintering compound containing a sinterable powder and a binder removable in a debinding step is injected into a metal mold set provided with a sintering compound injecting mold, in a sintering compound molding step (S104). An add-on forming compound which becomes removable or separable from the sintering compound injection molded body in the debinding step or the sintering step is injected into the metal mold set provided with an add-on mold in an add-on forming step (S102). The sintering compound injection molded body and the add-on are formed integrally with each other in the metal mold set. The integral formation of the add-on and the sintering compound injection molded body enables to prevent damage during release from the mold and make easy to handle the injection molded body.Type: GrantFiled: December 29, 2009Date of Patent: June 14, 2011Assignee: Taisei Kogyo, Ltd.Inventor: Shigeo Tanaka
-
Patent number: 7946035Abstract: A method of manufacturing a hollow article (10) comprising the steps of cold pressing two members (30,34) to form at least one depression (32,36) in the members (30,34). Arranging the two members (30,34) in abutting relationship such that the at least one depression (32,36) defines at least one chamber between the two members (30,34). Sealing (41) the edges (40,42) of the two members (30,34) together to form a core structure (44). Positioning the core structure (44) in a mold (46) to define a cavity (48) between the external surface (50) of the core structure (44) and the internal surface (52) of the mold (46), the internal surface (52) of the mold (46) substantially defining the external shape of the hollow article (10). Filling the cavity (48) between the core structure (44) and the mold (46) with a powder material (54), sealing the open edge of the core structure (44) to the mold (46).Type: GrantFiled: March 15, 2007Date of Patent: May 24, 2011Assignee: Rolls-Royce PLCInventor: Ewan F. Thompson
-
Patent number: 7947219Abstract: In a process for manufacturing composite sintered machine components, the composite sintered machine component has an approximately cylindrical inner member and an approximately disk-shaped outer member, the inner member has pillars arranged in a circumferential direction at equal intervals and a center shaft hole surrounded by the pillars, and the outer member has holes corresponding to the pillars of the inner member and a center shaft hole corresponding to the center shaft hole of the inner member and connected to the holes. The process comprises compacting the inner member and the outer member individually using an iron-based alloy powder or an iron-based mixed powder so as to obtain compacts of the inner member and the outer member, tightly fitting the pillars of the inner member into the holes of the outer member, and sintering the inner member and the outer member while maintaining the above condition so as to bond them together.Type: GrantFiled: November 1, 2007Date of Patent: May 24, 2011Assignee: Hitachi Powdered Metals Co., Ltd.Inventors: Hiromasa Imazato, Koichiro Yokoyama
-
Publication number: 20110085929Abstract: A method for preparing an implant having a porous metal component. A loose powder mixture including a biocompatible metal powder and a spacing agent is prepared and compressed onto a metal base. After being compressed, the spacing agent is removed, thereby forming a compact including a porous metal structure pressed on the metal base. The compact is sintered, forming a subassembly, which is aligned with a metal substrate portion of an implant. A metallurgical bonding process, such as diffusion bonding, is performed at the interface of the subassembly and the metal substrate to form an implant having a porous metal component.Type: ApplicationFiled: October 8, 2009Publication date: April 14, 2011Applicant: BIOMET MANUFACTURING CORP.Inventor: Gautam GUPTA
-
Publication number: 20110058976Abstract: A method for producing a magnetizable metal shaped body comprising a ferromagnetic starting material that is present in powder and in particulate form, using the following steps: (a) first compaction of the starting material (S3) such that adjoining particles become bonded to each other by means of positive adhesion and/or integral bonding in sections along the peripheral surfaces thereof and while forming hollow spaces, (b) creating an electrically isolating surface coating on the peripheral surfaces of the particles in regions outside the joining sections (S4), and (c) second compaction of the particles (S5) provided with the surface coating, such that the hollow spaces are reduced in size or eliminated.Type: ApplicationFiled: April 27, 2009Publication date: March 10, 2011Inventors: Paul Guempel, Stefan Glaeser, Beat Hofer
-
Publication number: 20110038748Abstract: Described is a process of producing a component from a gamma prime or gamma double prime precipitation-strengthened nickel-base superalloy. The process includes forming a powder of the superalloy and filling a can with the powder wherein the can includes nickel-chromium-molybdenum-niobium alloy. The can is evacuated and sealed in a controlled environment. The can and the powder are consolidated at a temperature, time, and pressure to produce a consolidation. The consolidated billet is forged at a temperature and strain rate to produce a forging with a uniform fine grain throughout. A further aspect described is a mold including a nickel-chromium-molybdenum-niobium alloy can.Type: ApplicationFiled: August 14, 2009Publication date: February 17, 2011Applicant: GENERAL ELECTRIC COMPANYInventor: Timothy Eden Channel
-
Publication number: 20110033331Abstract: First and second components 2, 4, which may be metallic components, are joined together in a process which comprises introducing a sinterable powder 20 between the components, the powder being retained within a receptacle 16, displacing the component 4 towards the component 2 to compress the powder, and subsequently applying heat and pressure to the powder 20 to form a sintered bond.Type: ApplicationFiled: July 27, 2010Publication date: February 10, 2011Applicant: ROLLS-ROYCE PLCInventors: Stephen Tuppen, Daniel Clark
-
Patent number: 7871563Abstract: Disclosed in this specification is a process for refurbishing a spent sputtering target. The process includes the step of applying sufficient heat and axial force to the filled sputtering target to hot press the filled sputtering target such that the powdered metal fuses with the un-sputtered metal, producing a refurbished target. The process may be used to refurbish precious metal targets, such as ruthenium targets.Type: GrantFiled: July 15, 2008Date of Patent: January 18, 2011Assignee: Williams Advanced Materials, Inc.Inventors: Robert Acker, Adrish Ganguly, Matthew T. Willson
-
Patent number: 7862768Abstract: A plain bearing is provided which has an Sn-and-Si-rich layer formed of an Al alloy containing Sn and Si, and a base material which does not contain Sn. The Sn-and-Si-rich layer have the sliding surface having an area ratio of Sn phase grains in a range of 6 to 40% and that of Si phase grains in a range of 5 to 25%.Type: GrantFiled: April 25, 2008Date of Patent: January 4, 2011Assignee: Daido Metal Company LtdInventors: Masahito Fujita, Eisaku Inoue, Shigeru Inami
-
Patent number: 7854886Abstract: A method of producing an aluminum matrix composite material is described that comprises the steps of: mixing an aluminum powder and a ceramic powder to prepare a mixed powder; providing a lower casing made of aluminum and formed in a hollow rectangular parallelepiped shape having an open top, and a closing member made of aluminum and formed in a shape adapted to hermetically close the open top of the lower casing; packing the mixed powder into the lower casing; closing the open top of the lower casing filled with the mixed powder, by the closing member, to prepare a pre-rolling assembly having the mixed powder hermetically sealed therein; preheating the pre-rolling assembly; and rolling the preheated assembly to obtain the aluminum matrix composite material, where the aluminum matrix composite material includes a pair of metal plates having the mixed powder therebetween.Type: GrantFiled: October 23, 2007Date of Patent: December 21, 2010Assignees: Nippon Light Metal Co., Ltd., Nikkeikin Aluminum Core Technology Co., Ltd.Inventors: Yuichi Tamaki, Kazuto Sanada, Toshimasa Nishiyama
-
Patent number: 7854887Abstract: A method of producing an aluminum matrix composite material is described that comprises the steps of: mixing an aluminum powder and a ceramic powder to prepare a mixed powder; providing a lower casing made of aluminum and formed in a hollow rectangular parallelepiped shape having an open top, and a closing member made of aluminum and formed in a shape adapted to hermetically close the open top of the lower casing; packing the mixed powder into the lower casing; closing the open top of the lower casing filled with the mixed powder, by the closing member, to prepare a pre-rolling assembly having the mixed powder hermetically sealed therein; preheating the pre-rolling assembly; and rolling the preheated assembly to obtain the aluminum matrix composite material, where the aluminum matrix composite material includes a pair of metal plates having the mixed powder therebetween.Type: GrantFiled: October 23, 2007Date of Patent: December 21, 2010Assignees: Nippon Light Metal Co., Ltd., Nikkeikin Aluminum Core Technology Co., Ltd.Inventors: Toshimasa Nishiyama, Kazuto Sanada, Hideki Honmou
-
Publication number: 20100276205Abstract: Methods of forming earth-boring rotary drill bits include providing a bit body, providing a shank that is configured for attachment to a drill string, and attaching the shank to the bit body. Providing a bit body includes providing a green powder component having a first region having a first composition and a second region having a second, different composition, and at least partially sintering the green powder component. Other methods include providing a powder mixture, pressing the powder mixture to form a green component, and sintering the green component to a final density. A shank is provided that includes an aperture, and a feature is machined in a surface of the bit body. The aperture is aligned with the feature, and a retaining member is inserted through the aperture. An earth-boring bit includes a bit body comprising a particle-matrix composite material including a plurality of hard particles dispersed throughout a matrix material. A shank is attached to the bit body using a retaining member.Type: ApplicationFiled: July 7, 2010Publication date: November 4, 2010Applicant: BAKER HUGHES INCORPORATEDInventors: James A. Oxford, Jimmy W. Eason, Redd H. Smith, John H. Stevens, Nicholas J. Lyons
-
Publication number: 20100274307Abstract: Methods of preparing an electrode are provided. A metal lead wire is pre-treated to facilitate bonding of the lead wire to a metal powder during subsequent de-oxidation sintering. A connection region can be formed by directly contacting the metal lead wire with a liquid reactive metal. After removal of resultant oxides, an additional metal powder can be de-oxidation sintered onto the connection region to form the electrode. The oxides formed during the de-oxidation sintering are then removed from the electrode.Type: ApplicationFiled: October 28, 2009Publication date: October 28, 2010Applicant: MEDTRONIC, INC.Inventors: Michael B. Hintz, Paul B. Young
-
Publication number: 20100200189Abstract: A method for making a turbine airfoil includes providing a mold core and an outer shell which cooperatively define a cavity in the shape of a hollow airfoil having an outer wall, a root, and a tip. A tip portion of the core extends completely through the portion of the cavity defining the tip of the airfoil. The core is restrained to prevent movement between the core and outer shell. Molten metal is introduced into the cavity and solidified to form an airfoil having at least one outer wall which defines an open tip and a hollow interior. A metallic tip cap is formed on the outer wall which substantially closes off the open tip. The tip cap may be formed by packing the airfoil with metallic powder; and laser sintering the exposed powder so as to form a tip cap which is metallurgically bonded to the outer wall.Type: ApplicationFiled: February 12, 2009Publication date: August 12, 2010Applicant: General Electric CompanyInventors: Huan Qi, Magdi Azer, Prabhjot Singh, Todd Jay Rockstroh, Sudhir K. Tewari, Joseph Giancarlo Sabato, Donald Brett Desander, Mark Douglas Gledhill
-
Publication number: 20100170786Abstract: A method for making a refurbished sputtering target has steps of providing a spent target with a backside, an eroded side and a rim; mechanically pre-treating the backside of the spent target; applying powder material that has the same composition as the spent target to form a powder-filled layer; and sequentially pre-pressing and sintering the spent target with the powder-filled layer to obtain the refurbished sputtering target. Therefore, a percentage of the spent target is reduced by mechanically treating the backside of the spent target, so the refurbished sputtering target has a consistent quality.Type: ApplicationFiled: July 6, 2009Publication date: July 8, 2010Applicant: SOLAR APPLIED MATERIALS TECHNOLOGY CORP.Inventors: Tzu-Wen WANG, Chih-Yao CHAN, Hao-Chia LIAO
-
Patent number: 7749430Abstract: A member for a semiconductor device of low price, capable of forming a high quality plating layer on a surface, having heat conductivity at high temperature (100° C.) of more than or equal to 180 W/m·K and toughness that will not cause breaking due to screwing, and will not cause solder breaking due to heat stress when it is bonded to other member with solder, and a production method thereof are provided. A member for a semiconductor device (1) having a coefficient of thermal expansion ranging from 6.5×10?6/K to 15×10?6/K inclusive, and heat conductivity at 100° C.Type: GrantFiled: January 11, 2006Date of Patent: July 6, 2010Assignee: A.L.M.T. Corp.Inventor: Akira Fukui
-
Patent number: 7749428Abstract: A manufacturing method of a clad material composed of a bronze alloy and a steel is provided, including: scattering a bronze alloy powder on a steel back metal; sintering the bronze alloy powder to obtain a bilayer material having a porous bronze alloy layer on the steel; dry-rolling and a sintering the bilayer material so that the bronze alloy layer has a porosity of 3% or less; and wet-rolling the bilayer material with supplying a rolling oil to surfaces of rolling rolls. The clad manufactured according to this method can be heat-treated without an disadvantage in a conventional wet-rolling that entering rolling oil vaporizes in the bronze alloy layer during the heat treatment to form new voids. Therefore, it becomes possible to make a bronze alloy layer high in density in small times of rolling, thus enabling an increase in production efficiency.Type: GrantFiled: March 27, 2007Date of Patent: July 6, 2010Assignee: Daido Metal Co Ltd.Inventors: Hiroyuki Sugawara, Yasuo Ido, Yoshiaki Sato, Yukio Ogita, Shigemasa Hakakoshi
-
Patent number: 7726023Abstract: In order to create titanium components with a titanium composite insert, a method is provided whereby an initial pre form 1 has a groove 2 formed in it. An encapsulating member 4 is then provided about the groove 2 in order to create a cavity 5 which is filled with titanium alloy powder 6. This titanium alloy powder 6 is densified and then accurately machined in order to create a groove insert form 7 which can accommodate a titanium composite material pre form insert 8 and further titanium alloy powder 9 such that through a high temperature isostatic pressing (HIP) process, the insert 8 is embedded. The original component form 1 can then be machined in order to create the final component elements such as aerofoils 13.Type: GrantFiled: June 15, 2006Date of Patent: June 1, 2010Assignee: Rolls-Royce PLCInventor: John Gareth Pursell
-
Publication number: 20100129254Abstract: The disclosure relates to a method for production of a component, such as a contact piece, for a switchgear assembly. To introduce a slot and apply a contact outer contour directly during the powder-metallurgical production process of the contact material, contouring in the form of a slot or slots is introduced into the powder-metal material, which is located in a mold, essentially in a direction parallel to a normal to a surface of the component, to form the component with a slot.Type: ApplicationFiled: November 30, 2009Publication date: May 27, 2010Applicant: ABB Technology AGInventors: Dietmar Gentsch, Guenter Pilsinger
-
Publication number: 20100124388Abstract: A composite bearing member 10 includes: a bearing sliding material 20 whose surface contacts a rotating portion; a bearing base material 30 made of a material different from a material constituting the bearing sliding material 20; and a joining layer 40 joining the bearing sliding material 20 and the bearing base material 30. Further, the bearing sliding material 20 has a sliding layer 50 sliding the rotating portion on a surface. Furthermore, the bearing sliding material 20 has, between the sliding layer 50 and the joining layer 40, a composition graded layer 60 which dispersedly contains the same metal material as a metal material constituting the joining layer 40 and in which a content of the metal material is increased toward the joining layer 40.Type: ApplicationFiled: November 18, 2009Publication date: May 20, 2010Inventors: Than Trong Long, Yuuji Hisazato, Satoshi Namba, Kazuma Mukai
-
Patent number: 7716838Abstract: An outer ring of a cross roller bearing is a composite component having an outer ring main body portion constructed of a lightweight metal alloy and a raceway surface formation portion linked to an inner side thereof and constructed of a ferrous material. A ring for forming the raceway surface formation portion is preformed, and is inserted into a forging die, powder forging is performed using a metal powder for manufacturing the outer ring main body portion, a composite component is manufactured in which a ringshaped portion for forming the outer ring main body portion is integrally formed with the raceway surface formation ring, and an after-treatment is performed on the product.Type: GrantFiled: June 28, 2005Date of Patent: May 18, 2010Assignees: Harmonic Drive Systems, Inc., Sumitomo Electric Sintered Alloy, Ltd.Inventors: Masaru Kobayashi, Toshihiko Kaji
-
Publication number: 20100104465Abstract: Method of joining a carbon-carbon composite piece 30 together with a metal insert 20, e.g. in the manufacture of aircraft brake discs 10.Type: ApplicationFiled: October 24, 2008Publication date: April 29, 2010Inventors: Allen H. Simpson, Mark L. La Forest, Alexander Mukasyan