Utilizing Wave Energy (e.g., Laser, Electromagnetic, Etc.) Plasma Or Electron Arc Or Beam Patents (Class 148/565)
  • Patent number: 10520919
    Abstract: Method, and corresponding system, for receiving and processing sensor data for an additive manufacturing machine. The method includes determining values of the sensor data relative to time; and determining tool positions relative to time based on process data which controls operation of the additive manufacturing machine. The method further includes determining the sensor data values at the working tool positions based on a correlation of the values of the sensor data relative to time and the working tool positions relative to time. A representation of the sensor data values at the working tool positions is displayed by a user interface device.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: December 31, 2019
    Assignee: General Electric Company
    Inventors: Li Zhang, Jacob Berlier, Adam McCann, Brandon Good
  • Patent number: 10388098
    Abstract: The present invention provides an anti-counterfeiting pattern processing apparatus and a method thereof that quickly process the anti-counterfeiting pattern with a low cost by forming a fine pattern of a nanometer or micrometer scale by using a laser processing system, and an apparatus and a method thereof detecting the anti-counterfeiting pattern of the micrometer or nanometer scale by using a laser measuring system.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: August 20, 2019
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Ji-Whan Noh, Hee-Shin Kang, Hyon Kee Sohn, Jeng-O Kim
  • Patent number: 10297503
    Abstract: Laser lift off systems and methods may be used to provide monolithic laser lift off with minimal cracking by reducing the size of one or more beam spots in one or more dimensions to reduce plume pressure while maintaining sufficient energy to provide separation. By irradiating irradiation zones with various shapes and in various patterns, the laser lift off systems and methods use laser energy more efficiently, reduce cracking when separating layers, and improve productivity. Some laser lift off systems and methods described herein separate layers of material by irradiating non-contiguous irradiation zones with laser lift off zones (LOZs) that extend beyond the irradiation zones. Other laser lift off systems and methods described herein separate layers of material by shaping the irradiation zones and by controlling the overlap of the irradiation zones in a way that avoids uneven exposure of the workpiece.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: May 21, 2019
    Assignee: IPG PHOTONICS CORPORATION
    Inventors: Jeffrey P. Sercel, Marco Mendes, Jie Fu
  • Patent number: 9669613
    Abstract: Laser lift off systems and methods overlap irradiation zones to provide multiple pulses of laser irradiation per location at the interface between layers of material to be separated. To overlap irradiation zones, the laser lift off systems and methods provide stepwise relative movement between a pulsed laser beam and a workpiece. The laser irradiation may be provided by a non-homogeneous laser beam with a smooth spatial distribution of energy across the beam profile. The pulses of laser irradiation from the non-homogenous beam may irradiate the overlapping irradiation zones such that each of the locations at the interface is exposed to different portions of the non-homogeneous beam for each of the multiple pulses of the laser irradiation, thereby resulting in self-homogenization. Thus, the number of the multiple pulses of laser irradiation per location is generally sufficient to provide the self-homogenization and to separate the layers of material.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: June 6, 2017
    Assignee: IPG Photonics Corporation
    Inventors: Cristian Porneala, Mathew Hannon, Marco Mendes, Jeffrey P. Sercel
  • Patent number: 9636770
    Abstract: In a method for controlling an irradiation system (20) for use in an apparatus (10) for producing a three-dimensional work piece and comprising a first and a second irradiation unit (22a, 22b) a first irradiation area (18a) is defined on a surface of a carrier (16) adapted to receive a layer of raw material powder. A layer of raw material powder applied onto the carrier (16) in the first irradiation area (18a) is irradiated by the first irradiation unit (22a) of the irradiation system (20), wherein the operation of the first irradiation unit (22a) is controlled in such a manner that the raw material powder is pre-heated.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 2, 2017
    Assignee: SLM Solutions Group AG
    Inventors: Dieter Schwarze, Henner Schoeneborn
  • Patent number: 9359652
    Abstract: Thermal treatment method for a micromechanical horological component derived from the LIGA method and exhibiting very low thermal inertia, said method including the step which consists in locally heating one area of the micromechanical horological component to increase hardness by local phase modification, the component being heated for a sufficiently short time that only the locally heated area is affected by the thermal treatment, the phase of the untreated portions of the component remaining unchanged.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: June 7, 2016
    Assignee: Nivarox-FAR S.A.
    Inventors: Christian Charbon, Alexandre Fussinger
  • Patent number: 9347130
    Abstract: Provided are a lanthanum target for sputtering which has a Vickers hardness of 60 or more and no spotty macro patterns on the surface, and a method of producing a lanthanum target for sputtering, wherein lanthanum is melted and cast to produce an ingot, the ingot is subject to knead forging at a temperature of 300 to 500° C. and subsequently subject to upset forging at 300 to 500° C. to form the shape into a rough target shape, and this is additionally subject to machining to obtain a target. This invention aims to offer technology for efficiently and stably providing a lanthanum target for sputtering that has no spotty macro patterns on the surface, and a method of producing the same.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: May 24, 2016
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Shiro Tsukamoto, Tomio Otsuki
  • Patent number: 9096913
    Abstract: A process and a system for creating internal stress in a metallic workpiece by laser shock peening is provided. In the process, a first laser pulse is applied to a treatment site of the workpiece covered by a surface layer. A second laser pulse follows the first laser pulse in time, and is applied to the treatment site of the workpiece. A covering layer, such as flowing water, is provided over the treatment site during the application of the laser pulses.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: August 4, 2015
    Assignee: EADS Deutschland GmbH
    Inventors: Roland Lang, Eggert Reese, Juergen Steinwandel
  • Patent number: 9057114
    Abstract: A method for producing a structural and/or safety-related motor vehicle component having at least one hot-formed and press-hardened part constructed from high-strength steel includes the steps of partially heat-treating a region of the motor vehicle component by heating the region to a heat-up temperature in a temperature range between 500° C. and 900° C.; maintaining the heat-up temperature for a duration of a holding time; and cooling down from the heat-up temperature in one or more phases. A body component constructed as a structural and/or safety-related motor vehicle component from a steel sheet blank that has been hot-formed and press-hardened includes joining flanges and/or coupling locations and/or safety-related parts, wherein the joining flanges, coupling locations and/or safety-related parts are partially heat-treated in several steps with the disclosed method.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: June 16, 2015
    Assignee: BENTELER AUTOMOBILTECHNIK GMBH
    Inventors: Markus Pellmann, Martin Pohl, Martin Schroeter, Stefan Adelbert, Otto Buschsieweke, Christian Handing
  • Publication number: 20150082764
    Abstract: A laser hardened knife guard is provided. In one aspect, the invention provides for a knife guard that comprises a guard body that further comprises a base material. The base material includes a mounting bar that defines at least one bolt hole and at least one tine projecting forward from the mounting bar. The base material has a first hardness. A laser treated material is formed into or in the base material. The laser treated material comprises a second hardness greater than the first hardness.
    Type: Application
    Filed: September 26, 2013
    Publication date: March 26, 2015
    Applicant: Kondex Corporation
    Inventors: Keith A. Johnson, Neal J. Stoffel
  • Publication number: 20150075678
    Abstract: A method for laser heat treatment of high tensile steel is provided to improve for improving formability. The method includes performing a heat treatment by irradiating a surface of a high tensile steel blank that includes a martensite structure and a ferrite structure with a laser to decrease a fraction of the martensite structure and increase a fraction of the ferrite structure. In addition, the method includes slowly cooling the blank to temper or anneal the heat-treated blank and subjecting the cooled blank to cold press forming.
    Type: Application
    Filed: December 31, 2013
    Publication date: March 19, 2015
    Applicant: HYUNDAI MOTOR COMPANY
    Inventor: Kyung-Bo Kim
  • Patent number: 8980169
    Abstract: Provided are high-purity lanthanum, wherein the purity excluding rare-earth elements and gas components is 4N or higher, and amounts of aluminum, iron and copper in the lanthanum are respectively 100 wtppm or less; as well as high-purity lanthanum, wherein the purity excluding rare-earth elements and gas components is 4N or higher, amounts of aluminum, iron and copper in the lanthanum are respectively 100 wtppm or less, oxygen content is 1500 wtppm or less, elements of alkali metals and alkali earth metals are respectively 1 wtppm or less, elements of transition metals and high-melting-point metals other than those above are respectively 10 wtppm or less, and radioactive elements are respectively 10 wtppb or less. The invention aims to provide technology capable of efficiently and stably providing high-purity lanthanum, a sputtering target comprising high-purity lanthanum, and a thin film for metal gate mainly comprising high-purity lanthanum.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: March 17, 2015
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Masahiro Takahata, Yuichiro Shindo, Gaku Kanou
  • Patent number: 8969752
    Abstract: The present invention provides a laser processing method comprising the steps of attaching a protective tape 25 to a front face 3 of a wafer 1a, irradiating a substrate 15 with laser light L while employing a rear face of the wafer 1a as a laser light entrance surface and locating a light-converging point P within the substrate 15 so as to form a molten processed region 13 due to multiphoton absorption, causing the molten processed region 13 to form a cutting start region 8 inside by a predetermined distance from the laser light entrance surface along a line 5 along which the object is intended to be cut in the wafer 1a, attaching an expandable tape 23 to the rear face 21 of the wafer 1a, and expanding the expandable tape 23 so as to separate a plurality of chip parts 24 produced upon cutting the wafer 1a from the cutting start region 8 acting as a start point from each other.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: March 3, 2015
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Kenshi Fukumitsu, Fumitsugu Fukuyo, Naoki Uchiyama
  • Publication number: 20150047753
    Abstract: The invention relates to a method for producing a component from transformable steel by hot forming, in which a plate first is cut out of a strip or sheet as the pre-material, and is then heated to forming temperature and pre-formed, having an at least partially martensitic transformation structure after forming. Instead of a press mould hardening, the at least partially martensitic transformation structure is created in the pre-material, or in the plate to be formed, by austenitisation and quenching already before forming, and then the thus-conditioned plate is reheated after forming, while maintaining the at least partially martensitic transformation structure, to a temperature below the Ac1 transformation temperature, and formed at this temperature.
    Type: Application
    Filed: February 27, 2013
    Publication date: February 19, 2015
    Inventors: Friedrich Luther, Thomas Evertz, Stefan Muetze, Michael Braun
  • Publication number: 20150034850
    Abstract: A valve body for an electromechanically operable valve is produced by providing a base element with a circumferential sidewall having a first portion, a second portion, and a third portion, the sidewall being made of a ferromagnetic material and enclosing a cavity extending along a longitudinal axis. The third portion is positioned in longitudinal direction between the first portion and the second portion. A thickness of the third portion is smaller than a thickness of the first portion and the second portion. Hardening the third portion is achieved by laser heating, which transforms a material structure of the third portion into a martensitic structure. The locally decreased thickness creates a bottleneck for a magnetic flux, and a magnetic flux bypass in the valve body is reduced due to magnetic saturation; however, a structural resistance of the valve body remains high due to the laser induced hardening.
    Type: Application
    Filed: June 2, 2014
    Publication date: February 5, 2015
    Applicant: Continental Automotive GmbH
    Inventors: Francesco Lenzi, Stefano Filippi, Mauro Grandi
  • Publication number: 20150020992
    Abstract: A non-scaling heat-treatable steel with particular suitability for producing hardened or die-hardened components is disclosed, characterized by the following chemical composition in % by weight: C 0.04-0.50; Mn 0.5-6.0; Al 0.5-3.0; Si 0.05-3.0; Cr 0.05-3.0; Ni less than 3.0; Cu less than 3.0; Ti 0.010-?0.050; B 0.0015-?0.0040; P less than 0.10; S less than 0.05; N less than 0.020; remainder iron and unavoidable impurities. Further disclosed is a method for producing a non-scaling hardened component from the steel and a method for producing a hot strip from a steel.
    Type: Application
    Filed: March 19, 2013
    Publication date: January 22, 2015
    Inventors: Joachim Schöttler, Friedrich Luther, Stefan Mütze
  • Publication number: 20150020932
    Abstract: A method of remanufacturing a rocker arm is provided. The rocker arm includes a body defining a center hole for receipt of a shaft, a first arm extending radially away from the center hole, and a second arm extending radially away from the center hole in a direction opposite the first arm. The second arm is configured to be operatively engaged with a valve mechanism and includes a contact surface configured to engage with a braking member. The contact surface includes a worn upper hardened surface. The method includes machining the contact surface to a depth less than a predefined tolerance limit to remove the worn upper hardened surface and create a generally planar unhardened contact surface. The method further includes hardening the unhardened contact surface using a laser to create a repaired contact surface with a surface hardness of greater than at least Rockwell C 50.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Applicant: Caterpillar Inc.
    Inventors: Taylor Young, Kegan Luick, Jonathan R. Eggemeyer
  • Publication number: 20150013855
    Abstract: A method of heat treating a surface with a laser, successive passes of the laser over the surface having a large overlap with each individual pass applying insufficient energy to obtain the desired effect on the surface but the overlapping passes applying sufficient energy. Various patterns of laser movement may be used.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 15, 2015
    Inventors: Curt Bergeson, Konrad Feigel
  • Patent number: 8911876
    Abstract: A method for forming pattern on substrate comprises steps of: providing a metal substrate; amorphousizing the metal substrate to from an amorphous pattern layer in the metal substrate; etching the metal substrate and forming an etching portion in the surface of the metal substrate which is not covered with the amorphous pattern layer. The article manufactured by the method is also provided.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: December 16, 2014
    Assignees: Shenzhen Futaihong Precision Industry Co., Ltd., FIH (Hong Kong) Limited
    Inventors: Quan Zhou, Xin-Wu Guan, Po-Feng Ho
  • Patent number: 8900688
    Abstract: To provide a grain oriented electrical steel sheet that can securely suppress propagation of lateral strain, and can make a product even from a portion where the lateral strain occurs. A grain oriented electrical steel sheet of the present invention has a linearly altered portion 14 generated in a glass coating film 12 at one of side edges of a steel sheet 11, in a continuous line or in a discontinuous broken line in a direction parallel with a rolling direction of the steel sheet, and having a composition different from a composition in other portions of the glass coating film. An average value of a deviation angle of a direction of an axis of easy magnetization of crystal grains relative to the rolling direction is 0° or more and 20° or less in a base metal iron portion of the steel sheet 11 at a position along a width direction of the steel sheet, the position corresponding to the linearly altered portion 14.
    Type: Grant
    Filed: May 28, 2012
    Date of Patent: December 2, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Tatsuhiko Sakai, Yoshio Nakamura, Kazuyuki Tashiro, Shohji Nagano, Shuichi Yamazaki, Koji Hirano
  • Publication number: 20140324186
    Abstract: Medical implants with non-equilibrium surface structures are disclosed. The surface treatment of the implants greatly enhances osseointegration, reduces time to recovery following implant surgery, reduces surgery-related infections, and improves outcomes. The implants, including dental implants and other implants for insertion into or attachment to bone, are applicable to treatment of a wide variety of medical conditions. The methods of altering the surface properties of medical implants include exposure of a crystalline surface material, such as metal or ceramic, to a short burst of high thermal energy or shock, resulting in the introduction of a non-equilibrium concentration of crystal lattice defects in a surface layer.
    Type: Application
    Filed: November 15, 2012
    Publication date: October 30, 2014
    Inventors: Gordon Daniel Blacklock, Vivek R. Dave
  • Patent number: 8858733
    Abstract: A method of laser hardening comprises irradiating a surface of a component with a laser beam to form a first band of irradiated material, irradiating the surface of the component with the laser beam to form a second band of irradiated material that overlaps the first band of irradiated material, where the first band and the second band have a pitch to width ratio of between about 0.5 and about 0.78.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: October 14, 2014
    Assignee: National Oilwell Varco, L.P.
    Inventors: Raju Pillai, Jiinjen Albert Sue, Unnikrishnan Vasudevan
  • Publication number: 20140302342
    Abstract: A copper wire includes a copper wire rod including 5 to 55 mass ppm of Ti, 3 to 12 mass ppm of sulfur, and 2 to 30 mass ppm of oxygen with the balance copper and inevitable impurities, a first crystal including a [111] crystal orientation and at least one twin crystal therein, and a second crystal that includes one or more crystals adjacent to the first crystal, a [111] crystal orientation with a different rotation angle on an atomic plane from the first crystal, and at least one twin crystal therein.
    Type: Application
    Filed: March 20, 2014
    Publication date: October 9, 2014
    Applicant: Hitachi Metals, Ltd.
    Inventors: Seigi AOYAMA, Toru Sumi, Hideyuki Sagawa, Keisuke Fujito, Masayoshi Goto, Hiroyoshi Hiruta
  • Publication number: 20140246129
    Abstract: A process for localized hardening of steel sheet components includes scanning a laser beam in a scan direction across a predetermined portion of the steel sheet component. The laser beam selectively heats material within the predetermined portion of the steel sheet component to a temperature of austenitizing transformation. During scanning of the laser beam across the predetermined portion, a source of external cooling is applied to the material within the predetermined portion and immediately behind the laser beam along the scan direction of the laser beam. The source of external cooling is selected to cool the material at a sufficiently rapid rate to form a locally hardened region that is defined substantially within the predetermined portion. Subsequent to applying the source of external cooling, the material within the predetermined portion of the steel sheet component is allowed to cool to ambient temperature.
    Type: Application
    Filed: July 25, 2012
    Publication date: September 4, 2014
    Applicant: MAGNA INTERNATIONAL INC.
    Inventors: Maximilian Amtmann, Boris Shulkin, Aldo Van Gelder, Hongping Gu
  • Patent number: 8813360
    Abstract: In a method for beam welding on components with a laser beam or electron beam generated by a beam source, the heat treatment of the welded component required to remove stresses is integrated into the welding process. In a work cycle combined with the welding process, a regulated heat supply to a selected region takes place, according to its residual heat resulting from the welding process and the predicted stresses in that region, using the residual heat remaining from the welding process following the welding process from the same or other beam source(s). The welding region is cooled in a controlled manner, so that welded components which are likely to be subject to high stress in use, provided for example for a aircraft engine, can be made available without inherent stresses and with the desired microstructure in a single—combined—work step.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: August 26, 2014
    Assignees: Rolls-Royce PLC, Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Daniel Clark, Claudia Berkenhoff, Claus T Haubold
  • Publication number: 20140227553
    Abstract: Disclosed are a preparation method of a steel product capable of local reinforcement using laser heat treatment, and a heat hardened steel used in the method. According to the present invention, the preparation method of a steel part comprises the following steps: (a) preparing a material comprising 0.1-0.5 wt % of C, 0.1-0.5 wt % of Si, 0.5-3.0 wt % of Mn, 0.1 wt % or less of P, 0.05 wt % or less of S, 0.01-1.0 wt % of Cr, 0.1 wt % or less of Al, 0.2 wt % or less of Ti, 0.0005-0.08 wt % of B, and the balance of Fe and inevitable impurities; (b) preparing a formed product by forming the material into a predetermined shape; and (c) locally reinforcing the high strength portion by carrying out laser heat treatment on a portion requiring high strength at the formed product.
    Type: Application
    Filed: October 17, 2011
    Publication date: August 14, 2014
    Applicant: HYUNDAI HYSCO
    Inventors: Hee-Joong Im, Seung-Man Nam, Bo-Ryong Lee, Kyung-Bo Kim, Youn-Il Jung
  • Patent number: 8803047
    Abstract: In one aspect, the invention relates to induction heating systems and methods for producing an object having a varying hardness along the length of the object. In some embodiments, the induction heating system comprises a radio frequency (RF) power source and a work coil electrically coupled to the RF power source, wherein the work coil is a helical conical coil.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: August 12, 2014
    Assignee: Ameritherm, Inc.
    Inventor: Lee Stratford
  • Patent number: 8790471
    Abstract: A silicon steel sheet (1) containing Si is cold-rolled. Next, a decarburization annealing (3) of the silicon steel sheet (1) is performed so as to cause a primary recrystallization. Next, the silicon steel sheet (1) is coiled so as to obtain a steel sheet coil (31). Next, an annealing (6) of the steel sheet coil (31) is performed through batch processing so as to cause a secondary recrystallization. Next, the steel sheet coil (31) is uncoiled and flattened. Between the cold-rolling and the obtaining the steel sheet coil (31), a laser beam is irradiated a plurality of times at predetermined intervals on a surface of the silicon steel sheet (1) from one end to the other end of the silicon steel sheet (1) along a sheet width direction (2). When the secondary recrystallization is caused, grain boundaries passing from a front surface to a rear surface of the silicon steel sheet (1) along paths of the laser beams are generated.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: July 29, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Tatsuhiko Sakai, Koji Hirano, Satoshi Arai, Yoshiyuki Ushigami
  • Publication number: 20140174610
    Abstract: A tubular hollow member to which torsion about a center line is applied is characterized in performing a partial heat treatment on part of a peripheral wall of the hollow member to make the hardness of an outer portion of the peripheral wall greater than the hardness before heating and greater than the hardness of an inner portion of the peripheral wall, and reduce a residual stress of the inner portion of the peripheral wall.
    Type: Application
    Filed: April 23, 2012
    Publication date: June 26, 2014
    Applicants: FUJI GIKEN CO., LTD., Y-TEC CORPORATION
    Inventors: Takeshi Edahiro, Norifumi Akutagawa, Kyotaro Yamane, Teruhisa Hiraoka, Kazumi Yasuda, Shigeaki Ando, Masaru Hashimoto, Yuichi Ando, Tetsuya Tsuruta
  • Patent number: 8709179
    Abstract: A process of irradiation Sn containing Pb-free solder to mitigate whisker formation and growth thereon is provided. The use of gamma radiation such as cobalt-60 has been applied to a substrate of Sn on copper has been found to change the morphology of the crystalline whisker growth to a more truncated hillock pattern. The change in morphology greatly reduces the tendency of whiskers to contribute to electrical short-circuits being used as a Pb-free solder system on a copper substrate.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: April 29, 2014
    Assignee: Savannah River Nuclear Solutions, LLC
    Inventors: Elizabeth N Hoffman, Poh-Sang Lam
  • Patent number: 8685185
    Abstract: Embodiments of the present invention are generally directed to materials processing methods using femtosecond duration laser pulses, and to the altered materials obtained by such methods. The resulting nanostructured (with or without macro- and micro-structuring) materials have a variety of applications, including, for example, aesthetic applications for jewelry or ornamentation; biomedical applications related to biocompatibility; catalysis applications; and modification of, for example, the optical and hydrophilic properties of materials including selective coloring.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: April 1, 2014
    Assignee: University of Rochester
    Inventors: Chunlei Guo, Anatoliy Y. Vorobyev
  • Patent number: 8657968
    Abstract: This method of manufacturing a grain-oriented electrical steel sheet includes, between a cold rolling process and a winding process, a groove formation process of irradiating the surface of a silicon steel sheet with a laser beam multiple times at predetermined intervals in a sheet passing direction, over an area from one end edge to the other end edge, in a sheet width direction of the silicon steel sheet, thereby forming a groove along a locus of the laser beam.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: February 25, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Tatsuhiko Sakai, Hideyuki Hamamura
  • Publication number: 20140034626
    Abstract: Methods of additive manufacturing a superalloy component are disclosed. In one method a powder bed of superalloy powder is selectively scanned with a focused laser beam in a line-by-line manner; and the spacing between adjacent scan lines is no more than twice the layer thickness being formed. In another method a compressive stress treatment is applied to the surface of the final component prior to separation of said component from the substrate. In a further method a superalloy component is formed on a substrate and the method includes Hot Isostatic Processing of the component wherein the mass of the substrate is reduced prior to the Hot Isostatic Processing. The methods may be combined in a multi-step process.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 6, 2014
    Applicant: MATERIALS SOLUTIONS
    Inventor: TREVOR ILLSTON
  • Publication number: 20140020797
    Abstract: The method provides heat-resistant chromia- or alumina-forming Fe-, Fe(Ni), Ni(Fe), or Ni-based alloys having improved creep resistance. A precursor is provided containing preselected constituents of a chromia- or alumina-forming Fe-, Fe(Ni), Ni(Fe), or Ni-based alloy, at least one of the constituents for forming a nanoscale precipitate MaXb where M is Cr, Nb, Ti, V, Zr, or Hf, individually and in combination, and X is C, N, O, B, individually and in combination, a=1 to 23 and b=1 to 6. The precursor is annealed at a temperature of 1000-1500° C. for 1-48 h in the presence of a magnetic field of at least 5 Tesla to enhance supersaturation of the MaXb constituents in the annealed precursor. This forms nanoscale MaXb precipitates for improved creep resistance when the alloy is used at service temperatures of 500-1000° C. Alloys having improved creep resistance are also disclosed.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 23, 2014
    Applicant: UT-BATTELLE, LLC
    Inventors: Michael P. BRADY, Gail M. LUDTKA, Gerard M. LUDTKA, Govindarajan MURALIDHARAN, Don M. NICHOLSON, Orlando RIOS, Yukinori YAMAMOTO
  • Publication number: 20140010590
    Abstract: A reinforcing bar has a controlled heating on its threaded end (or other engagement portion for engaging a coupler), which extends beyond the threads, and provides improved mechanical properties at the end. The heating may be a controlled heating that case hardens the threaded end, including heating of an unthreaded portion beyond the threaded portion. The heating may be done in multiple steps, for example with a heating/hardening, follow by cooling, a reheating for tempering, and a recooling. The bar end may be threaded into a coupler or splice, with the heated end extending axially beyond (outside of) the coupler. Regions of the reinforcing bar beyond the heated end may be untreated, and therefore weaker than the thermally-treated bar end. The resulting coupling or splice may therefore be able to achieve bar break (failure at a location in the bulk of the bar, away from the coupler).
    Type: Application
    Filed: July 2, 2013
    Publication date: January 9, 2014
    Inventors: Robert C. Stewart, Tobin Most
  • Patent number: 8562765
    Abstract: A method of heat treating metal powder and/or metal oxide powder by microwave energy is described. Furthermore, products made by the various processes of the present invention are further described.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: October 22, 2013
    Assignee: Global Advanced Metals, USA, Inc.
    Inventor: Shi Yuan
  • Publication number: 20130230422
    Abstract: A manufacturing method for medical equipment involves electron beam irradiating a titanium or titanium alloy substrate surface that has at least been machined, whereby platelet adhesion of the surface to be contacted by blood is reduced. The manufacturing method for medical equipment can also use a specific pre-processing method and an electron beam irradiation method to reduce the platelet adhesion of the surface which is to be contacted with blood, to suppress the formation of minute depressions (craters) in the surface, which can occur due to the irradiation by an electron beam.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 5, 2013
    Applicants: NAGATA SEIKI KABUSHIKI KAISHA, TERUMO KABUSHIKI KAISHA
    Inventors: Takehisa MORI, Atsushi OKAWA, Takeshi Tsubouchi, Kensuke Uemura
  • Publication number: 20130220490
    Abstract: The present invention provides a steel sheet with chemical components including, by mass%, 0.18-0.35% of C, 1.0%-3.0% of Mn, 0.01%-1.0% of Si, 0.001%-0.02% of P, 0.0005%-0.01% of S, 0.001%-0.01% of N, 0.01%-1.0% of Al, 0.005%-0.2% of Ti, 0.0002%-0.005% of B, and 0.002%-2.0% of Cr, and the balance of Fe and inevitable impurities, wherein: by volume%, a fraction of the ferrite is 50% or more, and a fraction of a non-recrystallized ferrite is 30% or less; and Cr?/CrM is 2 or less, where Cr? is a concentration of Cr subjected to solid solution in iron carbide and CrM is a concentration of Cr subjected to solid solution in a base material, or Mn0/MnM is 10 or less, where Mn0 is a concentration of Mn subjected to solid solution in an iron carbide, and MnM is a concentration of Mn subjected to solid solution in a base material.
    Type: Application
    Filed: October 21, 2011
    Publication date: August 29, 2013
    Inventors: Kunio Hayashi, Toshimitsu Aso, Toshimasa Tomokiyo
  • Publication number: 20130216856
    Abstract: Mechanical component having a surface at least one part of which has been surface hardened by induction heating. A cross section of the mechanical component through the surface exhibits a hardness Hsurface at the surface, and remains substantially equal through a first region, a hardness Hcore at the non-hardened core of the mechanical component and remains substantially equal through a third region and a transition, second region spanning between the first and third regions. The hardness profile in the first region has an average hardness Y1, and the hardness profile in the third region has an average hardness Y3. If a line is drawn on the hardness profile in the second region between the points (formula) and (formula), where 0<K<2, the hardness of the mechanical component in the second region determined along the line decreases by less than 50 HRC per mm.
    Type: Application
    Filed: May 27, 2011
    Publication date: August 22, 2013
    Inventor: Marco Burtchen
  • Publication number: 20130213533
    Abstract: A 7000-series aluminum alloy hollow extruded material formed by porthole extrusion contains Zn: 3.0 to 8.0 mass %, Mg: 0.4 to 2.0 mass %, Cu: 0.05 to 2.0 mass %, Si: 0.3 mass % or less, Fe: 0.35 mass % or less, and one or more of Mn, Cr, and Zr: 0.10 mass % or less in total, with the balance being Al and unavoidable impurities. The aluminum alloy hollow extruded material has a recrystallized structure throughout the cross-section. In the case of pipe expansion by electro-magnetic forming, excellent pipe expansion formability is obtained.
    Type: Application
    Filed: February 4, 2013
    Publication date: August 22, 2013
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventor: Kabushiki Kaisha Kobe Seiko Sho ( Kobe Steel, Ltd.)
  • Publication number: 20130139932
    Abstract: This method of manufacturing a grain-oriented electrical steel sheet includes, between a cold rolling process and a winding process, a groove formation process of irradiating the surface of a silicon steel sheet with a laser beam multiple times at predetermined intervals in a sheet passing direction, over an area from one end edge to the other end edge, in a sheet width direction of the silicon steel sheet, thereby forming a groove along a locus of the laser beam.
    Type: Application
    Filed: September 9, 2011
    Publication date: June 6, 2013
    Inventors: Tatsuhiko Sakai, Hideyuki Hamamura
  • Publication number: 20130118654
    Abstract: A silicon steel sheet (1) containing Si is cold-rolled. Next, a decarburization annealing (3) of the silicon steel sheet (1) is performed so as to cause a primary recrystallization. Next, the silicon steel sheet (1) is coiled so as to obtain a steel sheet coil (31). Next, an annealing (6) of the steel sheet coil (31) is performed through batch processing so as to cause a secondary recrystallization. Next, the steel sheet coil (31) is uncoiled and flattened. Between the cold-rolling and the obtaining the steel sheet coil (31), a laser beam is irradiated a plurality of times at predetermined intervals on a surface of the silicon steel sheet (1) from one end to the other end of the silicon steel sheet (1) along a sheet width direction (2). When the secondary recrystallization is caused, grain boundaries passing from a front surface to a rear surface of the silicon steel sheet (1) along paths of the laser beams are generated.
    Type: Application
    Filed: July 28, 2010
    Publication date: May 16, 2013
    Inventors: Tatsuhiko Sakai, Koji Hirano, Satoshi Arai, Yoshiyuki Ushigami
  • Publication number: 20130118653
    Abstract: Methods of refining the grain size of a titanium alloy workpiece include beta annealing the workpiece, cooling the beta annealed workpiece to a temperature below the beta transus temperature of the titanium alloy, and high strain rate multi-axis forging the workpiece. High strain rate multi-axis forging is employed until a total strain of at least 1 is achieved in the titanium alloy workpiece, or until a total strain of at least 1 and up to 3.5 is achieved in the titanium alloy workpiece. The titanium alloy of the workpiece may comprise at least one of grain pinning alloying additions and beta stabilizing content effective to decrease alpha phase precipitation and growth kinetics.
    Type: Application
    Filed: December 14, 2012
    Publication date: May 16, 2013
    Applicant: ATI PROPERTIES, INC.
    Inventor: ATI Properties, Inc.
  • Patent number: 8425699
    Abstract: The present invention provides a method for manufacturing a swash plate type piston pump motor in which: a plurality of pistons are arranged in a circumferential direction on a cylinder block configured to rotate with a rotating shaft; the pistons are guided along a swash plate to reciprocate by rotation of the rotating shaft; a convex portion of the swash plate is slidably supported by a recess of a swash plate support; and a wall formed integrally with the swash plate support is arranged on a normal to at least a part of a supporting surface of the recess, wherein: the supporting surface of the recess is quenched by irradiating the supporting surface with laser light while causing the laser light to scan the supporting surface; and outputs of the laser light are changed in accordance with incidence angles of the laser light with respect to the supporting surface.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: April 23, 2013
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Takashi Mori, Yasuo Ohmi
  • Publication number: 20130092298
    Abstract: Embodiments of methods for fabricating refractory-metal articles (e.g., implantable medical devices), and honing and blasting apparatuses for use in such methods are disclosed. Methods for fabricating refractory-metal-containing articles include laser cutting in a vacuum environment and/or at least one mechanical or chemical finishing step configured to remove at least one region affected by the fabrication process (e.g., the laser cutting process) to provide a substantially defect-free surface finish.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 18, 2013
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS, INC
    Inventors: Rainer Bregulla, Armin Stopper
  • Patent number: 8362389
    Abstract: Aims are to provide a tubular-body residual-stress improving apparatus and an adjustment method thereof capable of adjusting irradiation position with favorable reproducibility, even when an optical fiber is eccentric. In the tubular-body residual-stress improving apparatus, an optical control unit (5) includes a rotational hold mechanism (9) for holding an optical fiber (6) in a manner that the optical fiber (6) is rotatable in a circumferential direction of the optical fiber (6), and, if a position of an intensity peak of the laser beam from the optical fiber (6) in an axial direction of the tubular body (2) is offset from the center of an irradiation profile, a position at which the optical fiber (6) is held in the circumferential direction is adjusted by the rotational hold mechanism (9) so as to eliminate the offset or to minimize an influence of the offset.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: January 29, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shuho Tsubota, Takashi Ishide, Takashi Akaba, Hironori Onitsuka, Kenichi Kawanishi
  • Patent number: 8362393
    Abstract: An object is to provide a method and an apparatus for improving a residual stress in a tubular body, which are enabled to improve the residual stress reliably by clearly defining controlling rage for treatment conditions without depending on an installation state and configuration of the tubular body. When an outer-circumferential surface of a welded portion of a cylindrical tubular body (2) is irradiated with a laser beam that circles around an outer circumference of the tubular body (2), a heating width W in a circumferential direction heated by the laser-beam irradiation and a laser-beam moving speed V in the circumferential direction are set so that a stress in the circumferential direction in an inner surface of the tubular body (2) produced by the heating with the laser beam is at least larger than a yielding stress of a material that the tubular body (2) is made of.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: January 29, 2013
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Takahiro Ota, Shuho Tsubota, Takashi Ishide, Kazuhiko Kamo, Noriaki Sugimoto, Yoshiyuki Hemmi, Hironori Onitsuka, Takashi Akaba
  • Publication number: 20130014863
    Abstract: A magnetic field assisted processing method entails heating an iron-carbon alloy at an austenitizing temperature for a time duration sufficient for the alloy to achieve an austenitic microstructure; cooling the iron-carbon alloy to an intermediate temperature defined by a continuous cooling transformation (CCT) diagram for the iron-carbon alloy at a rate sufficient to avoid phase transformation of the austenitic microstructure, the intermediate temperature being below a bainitic knee of the CCT diagram and above a martensite start temperature; and applying a high field strength magnetic field of at least about 0.2 Tesla to the iron-carbon alloy after reaching the intermediate temperature. The field is applied for a time duration sufficient to transform the austenitic microstructure into a fine dispersion of one or more iron carbide phases in a ferrite matrix in order to produce a magnetically-processed alloy having improved ductility and strength.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 17, 2013
    Inventors: Gerard M. Ludtka, Gail M. Ludtka, John B. Wilgen, Roger A. Kisner
  • Patent number: 8330070
    Abstract: There is provided an improved laser shock hardening method and apparatus which can eliminate spattering of a liquid and waving of the liquid surface upon laser irradiation, and can stably irradiate a workpiece with a laser beam. Thus, the present invention provides in a laser shock hardening method for carrying out surface processing of a workpiece in contact with a liquid by irradiating through the liquid the surface of the workpiece with a pulsed laser beam intermittently emitted from a laser irradiation device, the improvement comprising: providing a solid transparent to the wavelength of the laser, serving as an entrance window to the surface of the liquid; allowing the liquid to be present in the light path of the laser beam between the solid and the surface of the workpiece; and allowing the laser beam to enter through the solid and irradiating through the liquid the surface of the workpiece with the laser beam, thereby shock-hardening the surface of the workpiece.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: December 11, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuji Sano, Naruhiko Mukai, Masaki Yoda, Yoshiaki Ono, Ryoichi Saeki, Hideki Naito
  • Patent number: 8304686
    Abstract: There is provided an improved laser shock hardening method and apparatus which can eliminate spattering of a liquid and waving of the liquid surface upon laser irradiation, and can stably irradiate a workpiece with a laser beam. Thus, the present invention provides in a laser shock hardening method for carrying out surface processing of a workpiece in contact with a liquid by irradiating through the liquid the surface of the workpiece with a pulsed laser beam intermittently emitted from a laser irradiation device, the improvement comprising: providing a solid transparent to the wavelength of the laser, serving as an entrance window to the surface of the liquid; allowing the liquid to be present in the light path of the laser beam between the solid and the surface of the workpiece; and allowing the laser beam to enter through the solid and irradiating through the liquid the surface of the workpiece with the laser beam, thereby shock-hardening the surface of the workpiece.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: November 6, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yuji Sano, Naruhiko Mukai, Masaki Yoda, Yoshiaki Ono, Ryoichi Saeki, Hideki Naito