Patents by Inventor Yuefeng Luo

Yuefeng Luo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11000908
    Abstract: Electrodes for and methods of electrical discharge machining are provided. For example, a method for forming a feature in a ceramic matrix composite (CMC) component comprises repeatedly advancing an electrode into and retracting the electrode from the CMC component until a desired depth is reached, where the electrode has a head end, a tip end, and a shaft extending from the head end to the tip end. The shaft has a first side and a second side each recessed inward such that the head end and the tip end are wider than the shaft. A method for forming a feature in a CMC component also may include feeding a dielectric fluid into the feature utilizing the recessed sides. In some embodiments, electrodes may include a shaft extending from a head end to a tip end and a central plane, where the shaft is recessed widthwise toward the central plane.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 11, 2021
    Assignee: General Electric Company
    Inventors: Yuefeng Luo, Allan R. Bridges, Christopher Alan Panczyk, Jason Crumb, Christopher Mark Andrew Philp
  • Patent number: 10953483
    Abstract: Tool electrodes for and methods of electrical discharge machining are provided. In one exemplary aspect, a tool electrode for machining features into a workpiece is provided that allows for increased machining speed without sacrificing the quality of the machined features. Moreover, a tool electrode is provided that eliminates or reduces the high cost associated with customized tool electrodes. In particular, a tool electrode is provided that includes a plurality of electrode elements arranged and spaced apart in a digitized matrix representative of a tooling shape for machining features into a workpiece. The plurality of electrode elements are spaced apart from one another and arranged in the digitized matrix by digitizing an analog electrode tool configured to machine the feature into the workpiece or a volume of the feature to be machined into the workpiece.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: March 23, 2021
    Assignee: General Electric Company
    Inventors: Yuefeng Luo, Nouman Usmani, Yuanfeng Luo
  • Patent number: 10407796
    Abstract: The present disclosure generally relates to a sealed metal laminate structure comprising: a metal layer having a first surface and an opposite second surface; a first enamel layer laminated on the first surface of the metal layer, except at an exposed metal protrusion at a perimeter edge of the sealed metal laminate structure; a second enamel layer laminated on the second surface of the metal layer, except at the exposed metal protrusion at the perimeter edge of the sealed laminate structure; and a phosphate sealer deposited on the exposed metal protrusion of the sealed metal laminate structure. The present disclosure also relates to a metal laminate structure without a phosphate sealer. In addition, systems and methods for treating workpieces, including metal laminate structures, are discussed.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: September 10, 2019
    Assignee: General Electric Company
    Inventors: Yuefeng Luo, William Edward Adis, Michael Lewis Jones
  • Patent number: 10392717
    Abstract: Described herein a bucket for use in the last stage of a steam turbine engine. The bucket includes a titanium-based alloy having a leading edge wherein the leading edge includes titania having a plurality of pores and a top sealing layer filling the plurality of pores, the sealing layer selected from the group consisting of: chromium, cobalt, nickel, polyimide, polytetrafluoroethylene and polyester.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: August 27, 2019
    Assignee: General Electric Company
    Inventors: Yuefeng Luo, William Edward Adis
  • Patent number: 10307846
    Abstract: An electrical discharge machining (EDM) system, control system and related methods. Various embodiments include a control system for controlling a plurality of electrode devices in an EDM system to form holes in a workpiece. The control system can be configured to perform a process including: initiating a hole formation program for each of the plurality of electrode devices; determining whether at least one electrode has completed formation of a corresponding hole in the workpiece; and separating at least one electrode from the workpiece in response to determining that at least one electrode has completed formation of the corresponding hole.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: June 4, 2019
    Assignee: General Electric Company
    Inventors: Yuefeng Luo, Shamgar Elijah McDowell
  • Publication number: 20190143431
    Abstract: Tool electrodes for and methods of electrical discharge machining are provided. In one exemplary aspect, a tool electrode for machining features into a workpiece is provided that allows for increased machining speed without sacrificing the quality of the machined features. Moreover, a tool electrode is provided that eliminates or reduces the high cost associated with customized tool electrodes. In particular, a tool electrode is provided that includes a plurality of electrode elements arranged and spaced apart in a digitized matrix representative of a tooling shape for machining features into a workpiece. The plurality of electrode elements are spaced apart from one another and arranged in the digitized matrix by digitizing an analog electrode tool configured to machine the feature into the workpiece or a volume of the feature to be machined into the workpiece.
    Type: Application
    Filed: November 15, 2017
    Publication date: May 16, 2019
    Inventors: Yuefeng Luo, Nouman Usmani, Yuanfeng Luo
  • Publication number: 20190091783
    Abstract: Electrodes for and methods of electrical discharge machining are provided. For example, a method for forming a feature in a ceramic matrix composite (CMC) component comprises repeatedly advancing an electrode into and retracting the electrode from the CMC component until a desired depth is reached, where the electrode has a head end, a tip end, and a shaft extending from the head end to the tip end. The shaft has a first side and a second side each recessed inward such that the head end and the tip end are wider than the shaft. A method for forming a feature in a CMC component also may include feeding a dielectric fluid into the feature utilizing the recessed sides. In some embodiments, electrodes may include a shaft extending from a head end to a tip end and a central plane, where the shaft is recessed widthwise toward the central plane.
    Type: Application
    Filed: November 27, 2018
    Publication date: March 28, 2019
    Inventors: Yuefeng Luo, Allan R. Bridges, Christopher Alan Panczyk, Jason Crumb, Christopher Mark Andrew Philp
  • Patent number: 10166617
    Abstract: Electrodes for and methods of electrical discharge machining are provided. For example, a method for forming a feature in a ceramic matrix composite (CMC) component comprises repeatedly advancing an electrode into and retracting the electrode from the CMC component until a desired depth is reached, where the electrode has a head end, a tip end, and a shaft extending from the head end to the tip end. The shaft has a first side and a second side each recessed inward such that the head end and the tip end are wider than the shaft. A method for forming a feature in a CMC component also may include feeding a dielectric fluid into the feature utilizing the recessed sides. In some embodiments, electrodes may include a shaft extending from a head end to a tip end and a central plane, where the shaft is recessed widthwise toward the central plane.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: January 1, 2019
    Assignee: General Electric Company
    Inventors: Yuefeng Luo, Allan R. Bridges, Christopher Alan Panczyk, Jason Crumb, Christopher Mark Andrew Philp
  • Publication number: 20180236579
    Abstract: A multi-loop controller component for an electric discharge machining (EDM) system includes a plurality of power loop circuits coupled to an output of a power supply of the EDM system and configured to receive DC electric power from the power supply. Each power loop circuitis electrically-isolated from other power loop circuits. The multi-loop controller component also includes a plurality of transistors. Each transistor is coupled to a respective power loop circuit and is configured to switch between an ON state and an OFF state to generate a pulse of the DC electric power through the respective power loop circuit. In addition, the multi-loop controller component has a drive controller coupled to the plurality of transistors. The drive controller is configured to transmit at least one control signal to at least one of the transistors to facilitate switching the transistor between the ON state and the OFF state.
    Type: Application
    Filed: February 23, 2017
    Publication date: August 23, 2018
    Inventors: Yuanfeng Luo, Yuefeng Luo, Dale Robert Lombardo, Steven Robert Hayashi
  • Patent number: 9963798
    Abstract: Various embodiments include a sealed laminated metal structure. This laminated metal structure has a metal layer, where the metal layer has a first surface and an opposite second surface. A material is laminated on each of the first and second surfaces of the metal layer. In some cases, the laminated metal structure is removed from a larger laminated sheet of metal. The laminated metal structure is subjected to alternating current electrolytic deburring and cleaning to remove any burrs along the perimeter edge. After deburring and cleaning, a sealer, which is a phosphate compound, is deposited on the perimeter edge of the laminated metal structure where the metal is exposed using alternating current.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: May 8, 2018
    Assignee: General Electric Company
    Inventors: Yuefeng Luo, William Edward Adis, Michael Lewis Jones
  • Publication number: 20180056419
    Abstract: Electrodes for and methods of electrical discharge machining are provided. For example, a method for forming a feature in a ceramic matrix composite (CMC) component comprises repeatedly advancing an electrode into and retracting the electrode from the CMC component until a desired depth is reached, where the electrode has a head end, a tip end, and a shaft extending from the head end to the tip end. The shaft has a first side and a second side each recessed inward such that the head end and the tip end are wider than the shaft. A method for forming a feature in a CMC component also may include feeding a dielectric fluid into the feature utilizing the recessed sides. In some embodiments, electrodes may include a shaft extending from a head end to a tip end and a central plane, where the shaft is recessed widthwise toward the central plane.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 1, 2018
    Inventors: Yuefeng Luo, Allan R. Bridges, Christopher Alan Panczyk, Jason Crumb, Christopher Mark Andrew Philp
  • Patent number: 9849528
    Abstract: An electrical discharge machining (EDM) system according to embodiments includes: a guide structure; a plurality of electrode devices positioned at least partially within the guide structure, the plurality of electrode devices aligned to provide a plurality of electrical discharges to a workpiece, each of the plurality of electrode devices including: an electrode for positioning proximate the workpiece; an electrode holder coupled to the electrode for holding the electrode proximate the workpiece; and a driver coupled to the electrode holder, the driver adapted to modify a position of the electrode holder and the electrode; and a control system operably connected with the driver, the control system configured to provide instructions to the driver of at least one of the plurality of electrode devices to modify a position of the at least one of the plurality of electrodes independently of at least one other one of the plurality of electrodes.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: December 26, 2017
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Yuefeng Luo, Shamgar Elijah McDowell
  • Patent number: 9784111
    Abstract: Provided are a component and an additive manufacturing method for fabricating a component. The additive manufacturing method for fabricating a component includes providing a first wire segment and a second wire segment, the first and second wire segments each having a cross-sectional stackable geometry; positioning the first wire segment into an alignment with the second wire segment to form a workpiece stack, the alignment aligning adjacent surfaces in a line of sight direction; and directing an energy beam toward the first wire segment and the second wire segment along the alignment to weld the first wire segment to the second wire segment to form a welded stack. The component includes a workpiece stack comprising a plurality of wire segments welded together along aligned adjacent surfaces.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: October 10, 2017
    Assignee: General Electric Company
    Inventors: Yuefeng Luo, William Edward Adis
  • Patent number: 9713861
    Abstract: Provided are a manufacturing system and a method for fabricating a component. The manufacturing system includes a wire delivery assembly arranged and disposed to deliver a wire feed to a fabrication assembly arrangement; the fabrication assembly arrangement includes a wire manipulation assembly, the wire manipulation assembly being arranged and disposed to convert the wire feed into a wire segment and position the wire segment on a workpiece positioner to form a workpiece stack; an energy beam source assembly arranged and disposed to direct one or more energy beams toward one or more aligned surfaces of adjacent wire segments within the workpiece stack, to weld the wire segments together. The method includes delivering a wire feed to a fabrication assembly; cutting and positioning a wire segment; and directing an energy beam toward one or more aligned surfaces of adjacent wire segments to weld the wire segments together.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: July 25, 2017
    Assignee: General Electric Company
    Inventors: Yuefeng Luo, William Edward Adis
  • Publication number: 20170072487
    Abstract: An electrical discharge machining (EDM) system according to embodiments includes: a guide structure; a plurality of electrode devices positioned at least partially within the guide structure, the plurality of electrode devices aligned to provide a plurality of electrical discharges to a workpiece, each of the plurality of electrode devices including: an electrode for positioning proximate the workpiece; an electrode holder coupled to the electrode for holding the electrode proximate the workpiece; and a driver coupled to the electrode holder, the driver adapted to modify a position of the electrode holder and the electrode; and a control system operably connected with the driver, the control system configured to provide instructions to the driver of at least one of the plurality of electrode devices to modify a position of the at least one of the plurality of electrodes independently of at least one other one of the plurality of electrodes.
    Type: Application
    Filed: September 15, 2015
    Publication date: March 16, 2017
    Inventors: Yuefeng Luo, Shamgar Elijah McDowell
  • Publication number: 20170072488
    Abstract: An electrical discharge machining (EDM) system, control system and related methods. Various embodiments include a control system for controlling a plurality of electrode devices in an EDM system to form holes in a workpiece. The control system can be configured to perform a process including: initiating a hole formation program for each of the plurality of electrode devices; determining whether at least one electrode has completed formation of a corresponding hole in the workpiece; and separating the at least one electrode from the workpiece in response to determining that the at least one electrode has completed formation of the corresponding hole.
    Type: Application
    Filed: September 15, 2015
    Publication date: March 16, 2017
    Inventors: Yuefeng Luo, Shamgar Elijah McDowell
  • Publication number: 20160346854
    Abstract: Systems and methods for controlled and precise EDM manufacturing of a component are disclosed.
    Type: Application
    Filed: August 11, 2016
    Publication date: December 1, 2016
    Inventors: Yuefeng Luo, William Edward Adis, Michael Lewis Jones
  • Patent number: 9490667
    Abstract: Disclosed are methods, apparatuses, and systems with regard to laminations. In an embodiment, an apparatus includes a lamination having a variable thickness and a spacer connected with the lamination at a location, wherein the location of the spacer is based on a determined thickness of the lamination.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: November 8, 2016
    Assignee: General Electric Company
    Inventors: Yuefeng Luo, William Edward Adis, David Norwood Dorsey, Christopher Richardson
  • Publication number: 20160298258
    Abstract: The present disclosure generally relates to a sealed metal laminate structure comprising: a metal layer having a first surface and an opposite second surface; a first enamel layer laminated on the first surface of the metal layer, except at an exposed metal protrusion at a perimeter edge of the sealed metal laminate structure; a second enamel layer laminated on the second surface of the metal layer, except at the exposed metal protrusion at the perimeter edge of the sealed laminate structure; and a phosphate sealer deposited on the exposed metal protrusion of the sealed metal laminate structure. The present disclosure also relates to a metal laminate structure without a phosphate sealer. In addition, systems and methods for treating workpieces, including metal laminate structures, are discussed.
    Type: Application
    Filed: June 17, 2016
    Publication date: October 13, 2016
    Inventors: Yuefeng Luo, William Edward Adis, Michael Lewis Jones
  • Patent number: 9452483
    Abstract: Systems and methods for controlled and precise EDM manufacturing of a component are disclosed.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: September 27, 2016
    Assignee: General Electric Company
    Inventors: Yuefeng Luo, William Edward Adis, Michael Lewis Jones