Patents by Inventor Qigui Wang

Qigui Wang 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).

  • Hybrid cam bore sand core with metal chills for cast aluminum block
    Patent number: 11554413
    Abstract: A system for making a hybrid cam bore sand core with metal chills for an engine block includes an engine block cast of an aluminum material. A camshaft bore extends through the engine block. A cam bore sand core with at least one metal chill is positioned within the camshaft bore. A body portion of the at least one metal chill is positioned in direct contact with a cam bearing surface of at least one cam bearing member during casting of the engine block to increase a cooling rate of the at least one cam bearing member and create a crystalline material depth of the cam bearing member having enhanced mechanical properties.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: January 17, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ronald J. Petrus, Qigui Wang, Richard M. Nichols, III, Brian C. Leuenhagen
  • High heat-absorption core for manufacturing of castings
    Patent number: 11548060
    Abstract: A high heat-absorption casting core for manufacturing a cast component includes a core body. The core body has at least a portion thereof defined by metal powder. The metal powder is configured to absorb heat energy from the cast component during cooling of the component and solidification thereof. The core body may be additionally defined by a sand fraction in contact with the metal powder fraction. A system and a method for manufacturing a cast component using the high heat-absorption casting core are also envisioned.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: January 10, 2023
    Assignee: GM Global Technology Operations LLC
    Inventors: Dale A. Gerard, Qigui Wang, Tyson W. Brown, Ali Shabbir, Anil K. Sachdev
  • PROCESS TO MAKE AND A CERAMIC FILTER FOR METAL CASTING
    Publication number: 20220355369
    Abstract: A method to manufacture a ceramic foam filter includes: sintering a filter body to a temperature greater than a molten metal to be filtered through the body; creating multiple tortuous path channels extending through the filter body individually having a repeated and controlled passage geometry creating a continuously changing diameter and area of a flow path through the multiple tortuous path channels causing localized increases and decreases in molten metal flow rate through the multiple tortuous path channels; and applying a mixture of at least one ceramic powder and at least one binder using additive manufacturing to shape the filter body including the multiple tortuous path channels.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 10, 2022
    Inventors: Qigui Wang, Andrew Thomas Cunningham, Zach Steffes, Jeffrey B. Harris, Brennon L. White, Liang Wang
  • PROCESS TO MAKE A CERAMIC FILTER FOR METAL CASTING
    Publication number: 20220355232
    Abstract: A ceramic foam filter system includes a filter body having multiple tortuous path channels through the filter body to filter a molten liquid. A filter holder configuration defining a canister in a runner passage receives the filter body. An upstream end of the filter body receives the molten liquid having multiple inclusions. A predominant portion of the inclusions are larger than the multiple tortuous path channels and are trapped against the upstream end of the filter body. The multiple tortuous path channels are sized to trap a predominant portion of multiple oxides within the molten liquid as trapped oxides within the filter body. A filtered molten material having the multiple inclusions and the multiple oxides removed is directed from the multiple tortuous path channels as a discharge flow to exit at a downstream end of the filter body.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 10, 2022
    Inventors: Qigui Wang, Andrew Thomas Cunningham, Zach Steffes, Brennon L. White, Liang Wang
  • Cylinder head valve seat with high thermal conductivity and multiple material cross-section
    Patent number: 11473456
    Abstract: A cylinder head valve seat of an automobile vehicle includes a valve seat having a valve seat surface integrally joined to an engagement end. The engagement end includes multiple materials extending through a cross section of the engagement end. The multiple materials include: a first material having a first thermal conductivity; and a second material having a second thermal conductivity higher than the thermal conductivity of the first material, wherein the first material transitions into the second material.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: October 18, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Qigui Wang, Devin R. Hess, Jeffrey Harris, Herbert W. Doty, Dale A. Gerard
  • ENHANCED ALUMINUM ALLOY GALVANICALLY COMPATIBLE WITH MAGNESIUM ALLOY COMPONENTS
    Publication number: 20220325385
    Abstract: An enhanced aluminum alloy galvanically compatible with a magnesium alloy component is disclosed. The aluminum alloy comprises aluminum, less than 0.2 weight percent copper, less than 0.2 weight percent iron, 6.0 to 9.0 weight percent silicon, 0.6 to 1.5 weight percent magnesium, and greater than 0.8 weight percent manganese. The aluminum alloy further comprises less than 2 weight percent zinc, less than 0.1 weight percent nickel, less than 0.2 weight percent tin, less than 0.05 weight percent titanium; and 0.008 to 0.02 weight percent strontium. Manganese and iron have a weight ratio of at least 30:1. Furthermore, iron and manganese combined content is less than 2.0 weight percent.
    Type: Application
    Filed: April 7, 2021
    Publication date: October 13, 2022
    Inventors: Wenying Yang, Qigui Wang, Ming Liu
  • Hybrid threading tool with cutting portion and rolling portion
    Patent number: 11465221
    Abstract: A hybrid threading tool defines a longitudinal axis and includes a cutting portion with a plurality of cutting teeth. The plurality of cutting teeth are configured to cut a first threading into a workpiece. The hybrid threading tool also defines a forming portion that is attached to the cutting portion and that is arranged therewith along the longitudinal axis. The forming portion includes a plurality of forming teeth configured to plastically deform the first threading into a second threading for the workpiece.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: October 11, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: David A. Wulbrecht, Qigui Wang, Tiruttani Munikamal, Lokesh Choudhary
  • Wear-resistant component and system
    Patent number: 11447850
    Abstract: A wear-resistant component includes a substrate formed from a metal, defining a bore, and having a bore surface. The substrate includes a first region having a first microstructure adjacent the bore surface and a first average particle size. The substrate also includes a second region having a second microstructure adjacent the first microstructure and a second average particle size. The first average particle size is larger than the second average particle size. A system and a method of forming the wear-resistant coating are also described.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: September 20, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Zhe Li, Wenying Yang, Qigui Wang, Dale A. Gerard
  • HYBRID THREADING TAP WITH REAMER PORTION AND THREAD CUTTING PORTION
    Publication number: 20220266366
    Abstract: A hybrid threading tap includes a reamer portion and a thread cutting portion having a plurality of cutting teeth. The thread cutting portion is arranged with the reamer portion along the longitudinal axis. The reamer portion is configured to be advanced within a hole of a workpiece to plastically deform and expand the hole to an expanded hole and provide the expanded hole with a zone of residual compressive stress. The plurality of cutting teeth is configured to cut a threading into the expanded hole within the zone.
    Type: Application
    Filed: February 22, 2021
    Publication date: August 25, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lokesh Choudhary, Tiruttani Munikamal, Qigui Wang, David A. Wulbrecht
  • PROFILE CHILL FOR FORMING A CAST DEVICE
    Publication number: 20220241847
    Abstract: A mold package for forming a cast device such as an engine block is described. The mold package includes a profiled chill and a mold core assembly that is disposed on the profiled chill. The mold core assembly defines a plurality of bulkheads of the engine block. The profiled chill includes a first chill portion having a second chill portion and a plurality of third chill portions arranged thereon, wherein the second chill portion is a semicylindrical element. The third chill portions are arranged to be adjacent to the plurality of bulkheads of the engine block.
    Type: Application
    Filed: February 1, 2021
    Publication date: August 4, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Tiruttani Munikamal, Bala Krishna Sela, Qigui Wang, Scott A. Kavanagh, Guy Celli, Lokesh Choudhary
  • HYBRID CAM BORE SAND CORE WITH METAL CHILLS FOR CAST ALUMINUM BLOCK
    Publication number: 20220241851
    Abstract: A system for making a hybrid cam bore sand core with metal chills for an engine block includes an engine block cast of an aluminum material. A camshaft bore extends through the engine block. A cam bore sand core with at least one metal chill is positioned within the camshaft bore. A body portion of the at least one metal chill is positioned in direct contact with a cam bearing surface of at least one cam bearing member during casting of the engine block to increase a cooling rate of the at least one cam bearing member and create a crystalline material depth of the cam bearing member having enhanced mechanical properties.
    Type: Application
    Filed: February 1, 2021
    Publication date: August 4, 2022
    Inventors: Ronald J. Petrus, Qigui Wang, Richard M. Nichols, III, Brian C. Leuenhagen
  • IN-LINE PRESSURIZATION CHAMBER FOR CASTING
    Publication number: 20220226885
    Abstract: Methods and systems are provided for continuously producing cast metal components. An exemplary method includes feeding molten metal into a first mold at a fill station; maintaining a pressurized chamber at an elevated pressure; moving the first mold into the pressurized chamber, wherein the molten metal solidifies in the first mold under the elevated pressure; and removing the first mold from the pressurized chamber.
    Type: Application
    Filed: January 20, 2021
    Publication date: July 21, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Qigui Wang, Thomas W. Gustafson, Steven L. Burkholder, Daniel J. Wilson, Gregory Melekian
  • METHODS OF MANUFACTURING PART WITH HOLE HAVING CUT THREADS
    Publication number: 20220203468
    Abstract: A method of manufacturing a threaded hole in a workpiece includes providing the workpiece having a region with a hole. The method also includes cutting a threading for the hole. Furthermore, the method includes, independent of cutting the threading, densifying the region proximate the hole to reduce material porosity in the region.
    Type: Application
    Filed: December 28, 2020
    Publication date: June 30, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lokesh Choudhary, Qigui Wang, Tiruttani Munikamal, David A. Wulbrecht, Gregory Melekian, Anil K. Sachdev
  • HYBRID THREADING TOOL WITH CUTTING PORTION AND ROLLING PORTION
    Publication number: 20220203469
    Abstract: A hybrid threading tool defines a longitudinal axis and includes a cutting portion with a plurality of cutting teeth. The plurality of cutting teeth are configured to cut a first threading into a workpiece. The hybrid threading tool also defines a forming portion that is attached to the cutting portion and that is arranged therewith along the longitudinal axis. The forming portion includes a plurality of forming teeth configured to plastically deform the first threading into a second threading for the workpiece.
    Type: Application
    Filed: December 28, 2020
    Publication date: June 30, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: David A. Wulbrecht, Qigui Wang, Tiruttani Munikamal, Lokesh Choudhary
  • ALUMINUM ALLOY FOR CASTING AND ADDITIVE MANUFACTURING OF ENGINE COMPONENTS FOR HIGH TEMPERATURE APPLICATIONS
    Publication number: 20220170138
    Abstract: An aluminum alloy is disclosed that is suitable for casting and additive manufacturing processes. The aluminum alloy may be used in the casting and additive manufacturing of engine blocks and/or cylinder heads of modern internal combustion engines. The aluminum alloy exhibits improved ductility and fatigue properties suitable for elevated operating temperatures from about 250° C. to 350° C. The alloy includes about, by weight, 4-10% Copper (Cu), 0.1-1.0% Manganese (Mn), 0.2 to 5% Magnesium (Mg), 0.01-1.0% Cerium (Ce), 0.01-2% Nickel (Ni), 0.01-0.8% Chromium (Cr), 0.01-1.0% Zirconium (Zr); 0.01-1.0% Vanadium (V), 0.01-0.3% Cobalt (Co), 0.01-1.0% Titanium (Ti), 1-200 ppm Boron (B), 1-200 ppm Strontium (Sr), 0.5% max Iron (Fe), 0.1% max other trace elements, and balance of aluminum (Al).
    Type: Application
    Filed: December 2, 2020
    Publication date: June 2, 2022
    Inventors: Qigui Wang, Dale A. Gerard, Devin R. Hess, Herbert W. Doty, Daniel J. Wilson
  • Method of manufacture and design of cast-in-place valve seats
    Patent number: 11326485
    Abstract: A cylinder head having a cast-in-place valve seat for an automobile vehicle includes a valve seat having an inner wall. At least one retaining feature integrally and homogeneously extends from the inner wall. The valve seat when positioned into a casting mold has the at least one retaining feature assisting in retaining the valve seat in the casting mold. A metal in a molten form is received in the casting mold. A cast component formed after cooling of the metal has the valve seat cast-in-place.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: May 10, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Devin R. Hess, Qigui Wang, Thomas W. Gustafson, Dale A. Gerard
  • High strength and high wear-resistant cast aluminum alloy
    Patent number: 11313015
    Abstract: Aluminum alloys having improved properties are provided. The alloy includes about 13 to about 17 weight percent silicon, about 0.3 to about 0.6 weight percent magnesium, and at least 75 weight percent aluminum. The alloy may include copper up to about 2.0 weight percent; iron up to about 0.8 weight percent; manganese up to about 1.0 weight percent; nickel up to about 1.0 weight percent; zinc up to about 0.8 weight percent; titanium up to about 0.5 weight percent; zirconium up to about 0.5 weight percent; vanadium up to about 0.5 weight percent; and other trace elements up to about 0.1 weight percent. In addition, the alloy may contain about 50 to about 1000 ppm of strontium and about 10 about 100 ppm phosphorus. Also disclosed is a die cast article, such as transmission clutch housing.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: April 26, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: Qigui Wang, Wenying Yang, Bing Ye
  • SYSTEM AND METHOD TO CONTROL MATERIAL DEPOSITION USING MAGNETIC FIELDS
    Publication number: 20220097173
    Abstract: Systems and methods are provided for controlling additive manufacturing material deposition using a magnetic field. A system may include a build surface; a material depositor through which a magnetically responsive material is deposited on the build surface; an energy source; and a magnet set. The magnet set applies the magnetic field to the build surface and/or to the material depositor. The magnetic field is configured to attract the magnetically responsive material while the energy source melts the magnetically responsive material.
    Type: Application
    Filed: September 29, 2020
    Publication date: March 31, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Liang Wang, Qigui Wang, Daniel J. Wilson
  • HYBRID CORE FOR MANUFACTURING OF CASTINGS
    Publication number: 20220097125
    Abstract: A hybrid core for manufacturing a cast component, the hybrid core including a sand core portion having an exterior shape configured to define an interior feature of the cast component. The hybrid core also includes a metal chill element embedded within the sand core portion. The metal chill element is configured to locally absorb heat energy from the cast component during cooling of the cast component and solidification thereof. The metal chill element is constructed and arranged within the sand core portion to be removed during shake out from the cast component subsequent to the solidification thereof. A system and a method for manufacturing a cast component using such a hybrid core are also envisioned.
    Type: Application
    Filed: September 28, 2020
    Publication date: March 31, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lokesh Choudhary, Tiruttani Munikamal, Qigui Wang, Liang Wang
  • FLOW CONDITIONING DEVICE HAVING INTEGRATED FLOW CONDITIONING ELEMENTS
    Publication number: 20220099114
    Abstract: A flow conditioning device includes a body portion having first and second ends and an interior surface defining a channel extending from the first end to the second end, and one or more flow conditioning elements disposed within the channel. Each of the one or more flow conditioning elements is integrally formed with the interior surface of the body portion, and may be a respective flow straightening tube, a flow straightening vane, a hole array plate, a turning vane, a swirling vane, a helical ridge formed along a respective longitudinal segment of the interior surface, or another configuration. The body portion and the one or more flow conditioning elements may be formed by an additive manufacturing process, and may optionally be made of the same material.
    Type: Application
    Filed: September 30, 2020
    Publication date: March 31, 2022
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jeffrey Harris, Andrew T. Cunningham, Zachary P. Steffes, Thomas Curtis, Qigui Wang, David C. Caples