One Or More Components Not Compacted Patents (Class 419/7)
  • Publication number: 20130133531
    Abstract: An anvil including a hard phase and a metal matrix in which the hard phase is dispersed, a concentration of the metal matrix phase varying according to a concentration gradient, is disclosed. The anvil may be used in a high pressure press. Methods of making an anvil including forming a hard phase dispersed in a metal matrix phase, a concentration of the metal matrix phase varying according to a concentration gradient, are also disclosed.
    Type: Application
    Filed: November 26, 2012
    Publication date: May 30, 2013
    Applicant: SMITH INTERNATIONAL, INC.
    Inventor: SMITH INTERNATIONAL, INC.
  • Patent number: 8409318
    Abstract: A process and apparatus for forming wires, such as wires used as feedstock in welding, brazing, and coating deposition processes. The process and apparatus generally entail feeding through a passage a quantity of powder particles of a size and composition that render the particles susceptible to microwave radiation. As the particles travel through the passage, the particles within the passage are subjected to microwave radiation so that the particles couple with the microwave radiation and are sufficiently heated to melt at least a radially outermost quantity of particles within the passage. The particles are then cooled so that the radially outermost quantity of particles solidifies to yield a wire having a consolidated outermost region surrounding an interior region of the wire.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: April 2, 2013
    Assignee: General Electric Company
    Inventors: Jeffrey Reid Thyssen, Laurent Cretegny, Daniel Joseph Lewis, Stephen Francis Rutkowski
  • Publication number: 20130075575
    Abstract: There is provided a method for manufacturing a three-dimensional shaped object, the method comprising the repeated steps of: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, followed by the irradiation of a predetermined portion of the powder layer with the light beam, wherein a heater element is disposed on the solidified layer during the repeated steps (i) and (ii), and thereby the heater element is situated within the three-dimensional shaped object.
    Type: Application
    Filed: June 9, 2011
    Publication date: March 28, 2013
    Applicants: OPM LABORATORY CO., LTD., PANASONIC CORPORATION
    Inventors: Satoshi Abe, Yoshiyuki Uchinono, Isao Fuwa, Norio Yoshida, Kazuho Morimoto
  • Publication number: 20130058824
    Abstract: Provided is a method for producing a decorative sintered metallic article and the same, used in jewelry goods, ornaments, clothing accessories, by combining a copper paste and a silver paste. The method comprises the steps of: producing a patterned piece by alternately arranging the copper paste containing an organic binder and water in 10 to 35 wt % and one or more kinds of copper powders selected from a copper powder and a copper alloy powder, and the silver paste similarly prepared to the copper paste; forming patterned pastes by drawing a pattern through deforming at least rows on the upper surface of the alternately arranged copper and silver pastes; drying the patterned pastes to produce a patterned piece; shaping a decorative object by processing the produced patterned piece; and firing the decorative object to produce a decorative sintered object.
    Type: Application
    Filed: November 4, 2010
    Publication date: March 7, 2013
    Applicant: AIDA CHEMICAL INDUSTRIES CO., LTD.
    Inventors: Masashi Hirama, Hidekazu Yoshihara, Toshie Ito
  • Publication number: 20130052442
    Abstract: A method of forming a ceramic layer on a metal substrate. A substrate (40) is formed (54) from a powder (24) of the metal, and may optionally be partially sintered (56). A layer (43) of powdered ceramic is formed (58) on or applied against the substrate (45). The ceramic powder may include a proportion of nano-sized particles effective to reduce the ceramic sintering temperature and to increase the sintering shrinkage of the ceramic layer to more closely match that of the metal substrate. The substrate and layer are then co-sintered (21, 60) at a temperature and for a duration that densifies and bonds them, producing a metal/ceramic layered material system with low interface stress that is durable to temperature variations in a gas turbine. Spark plasma sintering (32, 34, 36) may be used to sinter and/or co-sinter substrate and layer materials that normally cannot be sintered.
    Type: Application
    Filed: August 30, 2011
    Publication date: February 28, 2013
    Inventors: Gary B. Merrill, Cora Schillig, Andrew J. Burns, John R. Paulus
  • Patent number: 8333922
    Abstract: A method of producing three-dimensional bodies which wholly or for selected parts consists of a composite of crystalline or nanocrystalline metal particles in a matrix of amorphous metal. A metal powder layer (4) is applied onto a heat-conducting base (1, 13) and limited areas of the layer is melted successively by means of a radiation gun and cooled so that they can be made to solidify into amorphous metal. In connection with the melting of one or several of the limited areas, the radiation gun is regulated so that the melted area is cooled in accordance with a stipulated time-temperature curve in order to form a composite of crystalline or nanocrystalline metal particles in a matrix of amorphous metal. The method is repeated until a continuous layer, which contains composite metal to a desired extent, is formed. A new powder layer (4) is applied and the method is repeated, the new layer being fused to the underlying layer for successive construction of the three-dimensional body.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: December 18, 2012
    Assignee: Exmet AB
    Inventors: Peter Skoglund, Abraham Langlet
  • Publication number: 20120270425
    Abstract: A bi-metallic boss is provided. The bi-metallic boss includes a first portion and a second portion. The first portion is made of a first metal powder. The second portion is integrated with the first portion. Moreover, the second portion made of a second metal powder, such that the second metal powder is different from the first metal powder.
    Type: Application
    Filed: July 6, 2012
    Publication date: October 25, 2012
    Applicant: Caterpillar Inc.
    Inventors: Robert D. Rae, Marius G. Enescu
  • Patent number: 8178212
    Abstract: 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: Grant
    Filed: October 24, 2008
    Date of Patent: May 15, 2012
    Assignees: Honeywell International Inc., The University of Notre Dame du Lac
    Inventors: Allen H. Simpson, Mark L. La Forest, Alexander Mukasyan
  • Publication number: 20120114960
    Abstract: A cermet has a WC first hard phase, a second hard phase including one or more of a carbide, nitride and carbonitride of an element(s) of groups 4, 5 and 6 of the Periodic Table including a titanium element, and a mutual solid solution thereof, and a binder phase. In the cermet, a carbon amount CT (% by weight), a tungsten amount CW (% by weight), and a nitrogen amount CN (% by weight) satisfy 0.25<(CN/(CT?0.0653·CW))<6. The cermet has a surface region with a thickness of 5 to 100 ?m which includes the first hard phase and the binder phase, and an inner region which includes the first and second hard phases and the binder phase. In a cross-section of the inner region, a ratio of an area of the first hard phase to an area of the second hard phase is 0.15 to 4.
    Type: Application
    Filed: June 30, 2010
    Publication date: May 10, 2012
    Applicant: Tungaloy Corporation
    Inventors: Daisuke Takesawa, Keitaro Tamura, Hiroki Hara, Kozo Kitamura, Yasuro Taniguchi, Koji Hayashi
  • Publication number: 20120107561
    Abstract: Provided are a method for producing a decorative metallic article with a wood grain metal pattern and the decorative metallic article with the wood grain metal pattern; the decorative metallic article comprising a sintered copper part produced by sintering a plastic copper containing clay compound, and a sintered silver part produced by sintering a plastic silver containing clay compound.
    Type: Application
    Filed: September 27, 2010
    Publication date: May 3, 2012
    Applicant: AIDA CHEMICAL INDUSTRIES CO., LTD
    Inventors: Masashi Hirama, Hidekazu Yoshihara, Ryota Mitsuhashi, Tomoaki Kasukawa, Akiyoshi Yatsugi
  • Publication number: 20120100031
    Abstract: The invention concerns a method for producing three-dimensional objects (6) layer by layer using a powdery material (7) which can be solidified by irradiating it with a high-energy beam (4), said method comprising the steps of: applying a first layer of powdery material onto a working area (5); solidifying a part of said first layer by irradiating it with a high-energy beam; and applying a second layer (8) of powdery material onto the first, partly solidified layer. The invention is characterized in that the method comprises the step of: determining a rate at which the temperature of the second layer (8) increases after application onto the first layer. The invention also concerns an apparatus configured to operate according to the above method.
    Type: Application
    Filed: July 15, 2009
    Publication date: April 26, 2012
    Applicant: ARCAM AB
    Inventor: Ulric Ljungblad
  • Publication number: 20120097591
    Abstract: The invention relates to an apparatus for the chromatographic separation of a substance mixture in liquid form, comprising a stationary phase, wherein the stationary phase is configured in particular as a plate or plate-shaped body, consisting in particular of a porous solid, characterised in that the apparatus comprises at least one feed device for feeding a substance mixture, wherein the feed device comprises a plurality of feed openings and a plurality of feed lines and the feed openings are in particular disposed in one plane so that the length of the feed lines from a collecting feed line to at least a part of the plurality of feed openings is substantially the same.
    Type: Application
    Filed: February 12, 2010
    Publication date: April 26, 2012
    Inventors: Wolfgang Berthold, Andrea Claudia Walter
  • Publication number: 20120093674
    Abstract: There is provided a method for manufacturing a three-dimensional shaped object. The method of the present invention comprises the repeated steps of: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, followed by the irradiation of a predetermined portion of the powder layer with the light beam; wherein only the surface portion of the solidified layer, to which a force is applied when the three-dimensional shaped object is used, is subjected to a machining process.
    Type: Application
    Filed: June 23, 2010
    Publication date: April 19, 2012
    Applicant: PANASONIC ELECTRIC WORKS CO., LTD.
    Inventors: Satoshi Abe, Yoshikazu Higashi, Isao Fuwa, Masataka Takenami
  • Publication number: 20110286874
    Abstract: A method of sintering a 17-4PH alloy powder and a sintered 17-4PH sintered part are disclosed. The part is formed by selective laser sintering a 17-4PH alloy powder and binder mixture to form a green part that is sintered to form a part having a substantially pure martensitic structure. The metal powder includes boron. The sintered part may be further processed by shot peening to improve crack resistance.
    Type: Application
    Filed: August 5, 2011
    Publication date: November 24, 2011
    Applicant: THE BOEING COMPANY
    Inventors: Steven C. LOW, Jerry G. CLARK, Neal W. MUYLAERT, Richard J. NORD, Blair E. THOMPSON, Bryan E. AKE, Reid W. WILLIAMS
  • Patent number: 8052923
    Abstract: A method of producing three-dimensional bodies which wholly or for selected parts consist of amorphous metal. A metal powder layer (4) is applied to a heat-conducting base (1, 13), and a limited area of the layer is melted by a radiation gun (5) and the area is cooled so that the melted area solidifies into amorphous metal. The melting process is successively repeated on new limited areas of the powder layer until a continuous layer of amorphous metal is formed. A new powder layer is applied and the method is repeated, the new layer being fused to underlying amorphous metal for successive construction of the three-dimensional body. The heat-conducting base can be a worktable or a body of amorphous metal or crystalline metal to which amorphous metal is added.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: November 8, 2011
    Inventor: Abraham Langlet
  • Publication number: 20110058975
    Abstract: A method of processing a bimetallic part includes depositing an intermediary material having a metal powder onto a tooling surface of a cavity of a tool, transforming the intermediary material into a metal layer having a first composition on the tooling surface, and forming a metal core having a second, different composition in the cavity such that the metal layer bonds to the metal core to form a bimetallic part.
    Type: Application
    Filed: September 10, 2009
    Publication date: March 10, 2011
    Inventor: Clifford C. Bampton
  • Patent number: 7829012
    Abstract: A method for treating a porous item constructed of metal powder, such as a powder made of Series 400 stainless steel, involves a step of preheating the porous item to a temperature of between about 700 and 900° C. degrees in an oxidizing atmosphere and then sintering the body in an inert or reducing atmosphere at a temperature which is slightly below the melting temperature of the metal which comprises the porous item. The thermal stability of the resulting item is enhanced by this method so that the item retains its porosity and metallic characteristics, such as ductility, at higher (e.g. near-melting) temperatures.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: November 9, 2010
    Assignee: Worldwide Energy, Inc. of Delaware
    Inventors: Brian L. Bischoff, Theodore G. Sutton, Roddie R. Judkins, Timothy R. Armstrong, Kenneth D. Adcock
  • Patent number: 7815847
    Abstract: A process for mass production of three-dimensional articles made of intermetallic compounds based on titanium and aluminium by an electron beam melting technology. The articles are produced in successive sections from powders of the intermetallic compound with which the articles are to be produced. For each section, melting of the powders preceded by a preheating step is performed.
    Type: Grant
    Filed: July 7, 2007
    Date of Patent: October 19, 2010
    Assignees: Avio Investments S.p.A., Avioprop S.r.l.
    Inventors: Paolo Gennaro, Giovanni Paolo Zanon, Giuseppe Pasquero
  • Patent number: 7785529
    Abstract: The invention refers to a method and an apparatus for fabricating a tridimensional solid object by sintering inorganic particles of controlled size distribution. The particles are directed onto a target area in a powdery stream in the shape of a conical surface which is coaxial to a simultaneous heating flux while an at least bidimensional relative movement is maintained between the target area, the powdery stream and the heating flux. As a result the particles sinterization occurs in a single operation directly onto the target area.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: August 31, 2010
    Assignees: MBN Nanomaterialia SpA, LZH Laser Zentrum Hannover E V.
    Inventors: Paolo Matteazzi, Hinrich Becker
  • Publication number: 20100190026
    Abstract: A composite material includes a structural material and a shape-memory alloy embedded in the structural material. The shape-memory alloy changes crystallographic phase from austenite to martensite in response to a predefined critical macroscopic average strain of the composite material. In a second embodiment, the composite material includes a plurality of particles of a ferromagnetic shape-memory alloy embedded in the structural material. The ferromagnetic shape-memory alloy changes crystallographic phase from austenite to martensite and changes magnetic phase in response to the predefined critical macroscopic average strain of the composite material.
    Type: Application
    Filed: January 11, 2010
    Publication date: July 29, 2010
    Applicant: USA as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Terryl A. Wallace, Stephen W. Smith, Robert S. Piascik, Michael R. Horne, Peter L. Messick, Joel A. Alexa, Edward H. Glaessgen, Benjamin T. Hailer
  • Patent number: 7726023
    Abstract: 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: Grant
    Filed: June 15, 2006
    Date of Patent: June 1, 2010
    Assignee: Rolls-Royce PLC
    Inventor: John Gareth Pursell
  • Patent number: 7722802
    Abstract: The invention relates a powder material consisting of coated particles for a powder-based rapid generative prototyping methods, in particular by compressing a 3D binder. Said powder material consists of individual plastic, metal and/or ceramic particles and/or granules. A coating essentially consists of an adhesive agent which can be activated by a liquid binder, light or laser light, and of sinterable or glass-forming fine-grained material. Said invention also relates to a method for compressing 3D binder with the aid of an organic solvent having a water content less than 45% and to sintered bodies, in particular for moulding or precision mechanical engineering, which are fixed to each other by sintering or glass formation from a fine grained material.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: May 25, 2010
    Assignee: Daimler AG
    Inventors: Rolf Pfeifer, Jialin Shen
  • Publication number: 20100065142
    Abstract: A method for fabricating a unitary conduit is disclosed the method comprising the steps of determining three-dimensional information of the unitary conduit having at least one flow passage, converting the three-dimensional information into a plurality of slices that each define a cross-sectional layer of the unitary conduit, and successively forming each layer of the unitary conduit by fusing a metallic powder using laser energy. A unitary conduit is disclosed, comprising a body and a flow passage, wherein the flow passage and the body have a unitary construction, and made by using a rapid manufacturing process.
    Type: Application
    Filed: July 30, 2008
    Publication date: March 18, 2010
    Inventors: MARIE ANN MCMASTERS, Michael A. Benjamin, Alfred Mancini
  • Publication number: 20100044547
    Abstract: A method for producing a three-dimensionally shaped object, includes the steps of: (i) forming a solidified layer by irradiating a light beam on a specified portion of a powder layer placed on a shaping table to sinter or melt the specified portion; (ii) forming another solidified layer by placing a new powder layer on the solidified layer thus obtained, and irradiating the light beam on a specified portion of the new powder layer to sinter or melt the specified portion of the new powder layer; and (iii) repeating the step (ii) to produce a three-dimensionally shaped object. When performing the steps (i) to (iii) within a chamber, at least a part of an ambient gas in the chamber is exhausted from the chamber through a gas passage of a shaping tank.
    Type: Application
    Filed: August 18, 2009
    Publication date: February 25, 2010
    Applicant: Panasonic Electric Works Co.,
    Inventors: Yoshikazu Higashi, Masataka Takenami, Satoshi Abe, Isao Fuwa, Norio Yoshida
  • Publication number: 20100028192
    Abstract: A method for manufacturing a plate-type heat pipe includes filling a cavity of a mold with a core, and filling first and second metal powders into the injection systems of a double-mode injection molder with opposite injection directions. The first and second metal powders are injected into the cavity, and the first metal powder adheres to the core and the second metal powder adheres to the first metal powder. The resulting green piece is removed from the mold and the core removed therefrom by thermal or chemical reaction, resulting in a chamber in the green piece. The green piece is heated to obtain a sintered product with a tight outer wall constituting the sintered second metal powder and a wick structure constituting the sintered first powder. Finally a working fluid is injected into the chamber, and the sintered workpiece is evacuated by vacuum and sealed.
    Type: Application
    Filed: August 4, 2008
    Publication date: February 4, 2010
    Applicant: FOXCONN TECHNOLOGY CO., LTD.
    Inventor: CHUEN-SHU HOU
  • Publication number: 20090255261
    Abstract: A method for fabricating a unitary venturi is disclosed, the method comprising the steps of determining three-dimensional information of the unitary venturi having an annular venturi wall and a swirler having a plurality of vanes arranged circumferentially around a swirler axis, converting the three-dimensional information into a plurality of slices that each define a cross-sectional layer of the unitary venturi, and successively forming each layer of the unitary venturi by fusing a metallic powder using laser energy. Exemplary embodiments are disclosed, showing a unitary venturi comprising an annular venturi wall having a swirler axis and a heat shield located at an end wherein unitary venturi is made by using a rapid manufacturing process. In one aspect of the invention, the rapid manufacturing process is a laser sintering process.
    Type: Application
    Filed: October 31, 2008
    Publication date: October 15, 2009
    Inventors: MARIE ANN MCMASTERS, Michael A. Benjamin, Alfred Mancini
  • Publication number: 20090255119
    Abstract: A method for fabricating a unitary swirler is disclosed, the method comprising the steps of determining three-dimensional information of the unitary swirler having a plurality of vanes arranged in a circumferential direction on a body around a swirler axis and a wall extending between a rim and a portion of the body, converting the three-dimensional information into a plurality of slices that each define a cross-sectional layer of the unitary swirler, and successively forming each layer of the unitary swirler by fusing a metallic powder using laser energy. Exemplary embodiments are disclosed, showing a unitary swirler comprising a plurality of vanes extending from a hub having a unitary construction wherein unitary swirler is made by using a rapid manufacturing process. In one aspect of the invention, the rapid manufacturing process is a laser sintering process.
    Type: Application
    Filed: August 29, 2008
    Publication date: October 15, 2009
    Inventors: Marie Ann McMasters, Michael A. Benjamin, Alfred Mancini
  • Patent number: 7521652
    Abstract: The invention is a method for controllably cooling at least a portion of a part-cake from a laser sintering system to minimize cool down time, maximize throughput, and minimize thermal gradients within the part-cake. The method generally comprises forming one or more thermal transfer channels within the part-cake. The thermal transfer channels can include ducts and cooling fins in the part-cake surrounding the formed part. The method can further comprise removing unfused powder from the ducts and introducing cooling media into the ducts. The invention also includes a part-cake having thermal transfer channels formed therein and a laser sintering apparatus comprising a part-cake containing cylinder having permanent fittings therein for receiving terminal portions of thermal transfer channels formed in the part-cake.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: April 21, 2009
    Assignee: 3D Systems, Inc.
    Inventors: Tae Mark Chung, Raymond J. Bishop, Bradley David Geving, Jon Jody Fong, Patrick Dunne
  • Publication number: 20090047165
    Abstract: A metal powder for use in an additive production method of three-dimensional objects is disclosed. The powder is solidified by means of a laser or electron beam or another heat source and contains iron and the following components by weight percent (wt.-%): carbon: 0.07 max. wt-%, chromium: 14.00-15.50 wt.-%, nickel: 3.5-5.0 wt.-%, and copper: 3.0-4.5 wt.-%. The powder particles have a median particle size d50 between 20 ?m and 100 ?m.
    Type: Application
    Filed: May 13, 2008
    Publication date: February 19, 2009
    Applicant: EOS GmbH Electro Optical Systems
    Inventors: Tatu Syvanen, Olli Nyrhila, Juha Kotila
  • Publication number: 20090042057
    Abstract: A composite metal article includes a higher melting point metal, a lower melting point alloy and at least one other metal with an intermediate melting point between that of the higher melting point metal and the lower melting point alloy. The at least one other metal is selected to aid in sinter-densification of the higher melting point metal in a temperature range above the liquidus temperature of the lower melting point alloy and below the melting point of the at least one other metal.
    Type: Application
    Filed: August 11, 2008
    Publication date: February 12, 2009
    Applicant: Springfield Munitions Company, LLC
    Inventors: Julian Alex Thomas, Timothy George Smith
  • Publication number: 20080286139
    Abstract: In photo-shaping a target object executed by a photo-shaping machine (10) along with a computing device (1), a first path (P1) is generated as a light beam irradiation path on the basis of contour data of each section sliced at a specified pitch of three-dimensional CAD model data of the target object desired to be formed, and the first parameter data. A second path (P2) is generated as a removal processing path on the basis of the three-dimensional CAD model data, the second parameter data, and removing timing data showing a timing of executing the removal process. Driving programs (P3) are generated for executing the photo-shaping process including the light beam irradiation and the removal process, on the basis of the first path data, second path data and removing timing data, thereby performing the photo-shaping and removal process according to the driving programs.
    Type: Application
    Filed: October 21, 2005
    Publication date: November 20, 2008
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Satoshi Abe, Hirokazu Shinkai
  • Publication number: 20080274900
    Abstract: A method of manufacturing a sintered body, which is a method of manufacturing a sintered body containing Mg and B, comprises the arrangement and heat treatment steps of arranging Mg powder (3a, 3b) and B powder (2) without mixing the Mg powder and the B powder with each other and heat-treating the Mg powder (3a, 3b) and the B powder (2) after the arrangement step. The temperature in the heat treatment step is at least 651° C. and not more than 1107° C. Thus, the critical current density can be improved.
    Type: Application
    Filed: October 25, 2005
    Publication date: November 6, 2008
    Inventors: Jun-ichi Shimoyama, Takeshi Kato
  • Publication number: 20080231409
    Abstract: The object of the present invention is to provide a powder core and method for making the same that is equipped with insulative coating having superior heat resistance, with the coating making it possible to adequately restrict the flow of eddy currents between particles. The powder core is equipped with a plurality of compound magnetic particles bonded to each other. Each of said plurality of composite magnetic particles includes: a metal magnetic particle 10; an insulative lower layer coating 20 surrounding a surface 10a of said metal magnetic particle 10; an upper layer coating 30 surrounding said lower layer coating 20 and containing silicon; and dispersed particles 50 containing a metal oxide compound and disposed in said lower layer coating 20 and/or said upper layer coating 30. A mean particle diameter R of the dispersed particles 50 meets the condition 10 nm<R?2 T, where the average thickness of the coating combining the lower layer coating 20 and the upper layer coating 30 is T.
    Type: Application
    Filed: January 28, 2005
    Publication date: September 25, 2008
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Hirokazu Kugai, Naoto Igarashi, Toru Maeda, Kazuhiro Hirose, Haruhisa Toyoda, Koji Mimura, Takao Nishioka
  • Publication number: 20080166580
    Abstract: The present invention relates to a cemented carbide endmilling tool particularly useful for semifinishing and finishing machining of hardened steels of HRC above 46, comprising a substrate and a wear resistant coating. The substrate, a, comprises from about 90 to about 94 wt % WC in a binder phase of Co also containing Cr in such an amount that the Cr/Co weight ratio is from about 0.05 to about 0.18. The wear resistant coating, b, is from about 1.8 to about 9.5 ?m thick, and comprises a first layer, c, of a hard and wear resistant refractory PVD AlMe nitride or carbonitride where Me is Zr, V, Nb, Cr or Ti having a thickness of from about 1.0 to about 4.5 ?m and an atomic fraction of Al to Me of from about 1.20 to about 1.50, a second layer, d, of hard and wear resistant refractory PVD AlMe nitride or carbonitride where Me is Zr, V, Nb, Cr or Ti, having a thickness of from about 0.5 to about 4.5 ?m, and an atomic fraction of Al to Me of 1.30-1.
    Type: Application
    Filed: December 13, 2007
    Publication date: July 10, 2008
    Inventors: Torbjorn Selinder, Susanne Norgren, Mats Ahlgren, Ragnar Sjostrom, Anders Jonsson
  • Patent number: 7378052
    Abstract: A method and apparatus for producing products from a powered base material, by means of so-called free form fabrication, wherein the powder granules are bound together into a solid product.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: May 27, 2008
    Assignee: FCUBIC AB
    Inventor: Urban Harryson
  • Publication number: 20080066952
    Abstract: An alloy circuit board and a method of manufacturing the alloy circuit board are disclosed. Using a method of manufacturing alloy circuit board which includes forming a first circuit layer, by printing ink containing first metal particles on a board in correspondence to a circuit pattern; stacking a second circuit layer on the first circuit layer, by printing ink containing second metal particles on the board; and sintering the first circuit layer and the second circuit layer, a desired alloy circuit can be formed without using alloy ink, and an alloy circuit can be formed by an inexpensive process without the use of masks.
    Type: Application
    Filed: September 18, 2007
    Publication date: March 20, 2008
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young-Jae Kim, Jae-Woo Joung, Young-Seuck Yoo
  • Patent number: 7141207
    Abstract: A 3D Printing Rapid Prototyping process using Al/Mg particles coated with a metal (i.e. copper, nickel, zinc, or tin) that (1) prevents oxidation of the Al/Mg particles, and (2) either alone, or when alloyed with the aluminum or magnesium core metal, melts below the liquidus temperature of the core.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: November 28, 2006
    Assignee: General Motors Corporation
    Inventors: William F. Jandeska, Jr., James E. Hetzner
  • Patent number: 7120520
    Abstract: An energy management device is provided in a first energy related system and manages transfer of energy between the first energy related system and a second energy related system remote from the first energy related system, each of the first and second energy related systems including, as an energy related element, at least one of an accumulation unit which accumulates energy, a consumption unit which consumes energy, and a generation unit which generates energy. In the energy management device, a communication unit exchanges information between the first energy related system and the second energy related system, the information related to at least one of the energy consumption, the energy accumulation and the energy generation in each of the first and second energy related systems. A supply control unit controls supplying of energy from one of the first and second energy related systems to the other based on contents of the exchanged information.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: October 10, 2006
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Keisuke Seto, Hiroshi Isono, Kei Takakuwa, Takahiro Kodaira
  • Patent number: 6893560
    Abstract: Mounting plates used to mount filter elements within cylindrical canisters are made from sintered powdered materials, such as sintered powdered metal in order to reduce engineering and tooling lead time as well as to reduce costs. By making a mounting plate of sintered metal, the mounting plate can have a varying thickness which is an advantage not obtainable with a mounting plate stamped from steel sheet.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: May 17, 2005
    Assignee: WIX Filtration Corp.
    Inventor: David Matthew Reinhart
  • Patent number: 6881376
    Abstract: The present invention relates to a nuclear fuel body comprising tungsten network and a method for manufacturing the same, more particularly, a nuclear fuel body in which tungsten network is continuously formed over the entire or some parts of a sintered body and a method for manufacturing the same. The sintered body in the nuclear fuel body of the present invention contains tungsten network having excellent heat conductivity, leading to the enhancement of heat conductivity of the nuclear fuel sintered body itself with decreasing the temperature of the nuclear fuel, so that it can contribute to the improvement in safety and performance of nuclear fuel.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: April 19, 2005
    Assignees: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power, Co., Ltd.
    Inventors: Kun Woo Song, Jae Ho Yang, Keon Sik Kim, Ki Won Kang, Jong Hun Kim, Youn Ho Jung
  • Publication number: 20040173945
    Abstract: Disclosed are methods and systems for selective inhibition of sintering in 3D fabrication. The disclosure provides methods and systems that use selective heating arrangements to selectively sinter areas during fabrication thereby reducing waste improving efficiency.
    Type: Application
    Filed: December 19, 2003
    Publication date: September 9, 2004
    Inventor: Behrokh Khoshnevis
  • Patent number: 6723278
    Abstract: This invention presents the process of direct laser casting of copper alloys: Cu—X (where X=Ni, Fe, W;) and their composites Cu—Y and Cu—X—Y (Y=WC, TiC, Ti+C) from powders prepared using mechanical mixing and ball milling processes. Since the metallic powder is combined with a low melting point Cu metal, which has good thermal and electrical conductivity, the combination allows the powder mixture to be melted by CO2 laser and re-solidified into a part with good mechanical properties and conductivity. The laser casting process for the Cu-based in-situ formation and the material systems formed using the said method have been developed. The process can be used to fabricate complex three-dimensional objects by multi-layer overlapping and the material systems can be used to build rapid tooling due to the properties of good thermal conductivity and low wear rate.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: April 20, 2004
    Assignees: The National University of Singapore, The Singapore Institute of Manufacturing Technology
    Inventors: Li Lu, Jerry Ying Fuh, Yoke San Wong, Zhenda Chen, Gnian Cher Lim
  • Patent number: 6699431
    Abstract: A method of producing an anode for a capacitor, which includes the steps of molding a continuously deformable material onto a flat anode conductor and simultaneously externally shaping the material, and solidifying the material to form an anode body.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: March 2, 2004
    Assignee: Epcos AG
    Inventors: Helge Clasen, Willy Knabe, Klaus Gnann, Josef Gerblinger, Dieter Hahn
  • Patent number: 6676892
    Abstract: A method of fabricating a fully dense, three dimensional object by direct laser sintering is disclosed. In a chamber with a partial pressure atmosphere, a beam of directed energy melts metallic powder in order to form a solid layer cross section. Another layer of powder is deposited and melted, along with a portion of the previous layer. The energy beam typically is in the form of a laser, scanning along a path resembling a parametric curve or another, arbitrary piecewise parametric curve. In another embodiment, the previous layer is not remelted, thus creating an oxide film that acts as a clean stop to prevent unwanted downward growth.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: January 13, 2004
    Assignee: Board of Regents, University Texas System
    Inventors: Suman Das, Joseph J. Beaman
  • Patent number: 6652804
    Abstract: A method for producing a thin openly porous metal film from a metal powder that can be sintered. The metal powder is suspended in a carrier fluid with a specific size distribution of particles, the suspension is applied to a supporting material in at least one thin film and dried, and the green layer thus formed is sintered. The thickness of the layer formed by suspension thus applied corresponds at least to the thickness (s) of the metal film to be produced after sintering, whereby (s) is at least three times the value of the diameter (D) of the powder particles, D=1-50 urn and the maximum thickness of the finished metal film is 500 &mgr;m.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: November 25, 2003
    Assignee: GKN Sinter Metals GmbH
    Inventors: Peter Neumann, Andreas Kuhstoss
  • Patent number: 6630009
    Abstract: A paste composition, including a binding agent charged with metallic powder, to be used in a solid freeform fabrication procedure, comprising: a) a solidifiable binding agent comprised of at least one polymerizable resin, with a viscosity of less than 4000 mPa.s, measured at 25° C.; b) at least one initiator, in a concentration greater than about 0.1% by mass with respect to the mass of the resin; and c) a mixture of at least two metallic powders, said mixture having a volumetric concentration greater than 40% with respect to the composition, wherein said mixture of metal powders is either i) a bimodal or trimodal mixture in nature, or ii) is a majority of stainless steel with an amount of NiB or NiP and combinations thereof effective to lower the sintering temperature.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: October 7, 2003
    Assignee: 3D Systems, Inc.
    Inventors: Khalil M. Moussa, Kenneth J. Newell, Catherine Hinczewski, Charles H. Zenuk
  • Patent number: 6599465
    Abstract: According to the inventive method for producing a composite part (4), a support body (1) is produced from a powder with a ferrous alloy base using powder metallurgy. A magnet body (2) which is based on an alloy that is rich in rare earths is applied to the support body (1) and both are then sintered in a furnace (1), whereby a solid joint is formed between the support body (1) and the magnet body (2).
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: July 29, 2003
    Assignee: Vacuumschemlze GmbH
    Inventors: Georg-Werner Reppel, Volker Zellmann
  • Patent number: 6585930
    Abstract: A binder, and a method of using it in conventional powder metallurgy processes and solid free form fabrication including metal powder, or combinations of metals and ceramics, in which the binder contains at least one carbohydrate as the active binding compound. The carbohydrate generally contains between 6 and about 900 carbon atoms and may be selected from various categories including but not limited to: 1) monosaccharides; 2) disaccharides; 3) trisaccharides; and 4) polysaccharides containing the base sugars identified in 1)-3) above; and 5) hydrolyzed starches in which the hydrolysate contains between about 6-900 carbon atoms, including dextrins such as limit dextrin, hydrolyzed amylose, and hydrolyzed amylopectin. The amount of carbohydrate in the binder solution is generally on the order of about 5-50 grams carbohydrate per 100 ml of carrier solution, more preferably 5-30 g/ml, and most preferably 15 g/ml (or comparable amounts on a dry basis).
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: July 1, 2003
    Assignee: Extrude Hone Corporation
    Inventors: Jianxin Liu, Michael Rynerson
  • Patent number: 6558616
    Abstract: An electrode for a PTC thermistor of the present invention includes a base layer having electrical conductivity and a sintered layer formed on the base layer. The sintered layer is formed by sintering a conductive powder and has electrical conductivity, and has roughness on a surface thereof. Thus, the present invention can provide an electrode for a PTC thermistor that has a large adhesion to the conductive polymer and can be produced easily.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: May 6, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masahiro Ito, Masakazu Tanahashi, Toshiro Kume, Kouichi Morimoto, Junji Kojima, Emiko Igaki
  • Patent number: 6508979
    Abstract: A method for fabricating or prototyping a nanoscale object is disclosed. The method includes defining a sequence of nanolayers that represent the nanoscale object, constructing a current nanolayer on a first surface, and depositing a sacrificial layer to cover the first surface but not the nanolayer. The nanolayer represents a slice of the nanoscale object. The nanolayer and the sacrificial layer provide a second surface on which a next nanolayer is constructed. The above construction and deposition steps are repeated if the next nanolayer is not the last nanolayer. The method also includes removing the sacrificial layers to produce the nanoscale object.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: January 21, 2003
    Assignee: University of Southern California
    Inventors: Aristides A. G. Requicha, Bruce E. Koel, Roland Resch, Diana Lewis, Mark E. Thompson