公开(公告)号：US20230356293A1

公开(公告)日：2023-11-09

申请号：US17735337

申请日：2022-05-03

Applicant: GM Global Technology Operations LLC

Inventor： Daniel J. Wilson ,  Liang Wang ,  Qigui Wang ,  Devin R. Hess ,  Michelle A. Wood ,  Ronald C. Daul ,  Ali Shabbir

IPC: B22D17/22 ,  B22C9/22

CPC classification number: B22D17/229 ,  B22C9/22

Abstract: A design for repair casting having a repairable ultra-large single-piece casting and a replacement part. The ultra-large single-piece casting includes a main body portion, at least one predefined replaceable portion integrally cast with the main body portion, and a cut-guide delineating the predefined replaceable portion from the main body portion. The cut-guide includes a continuous channel defined on an exterior surface of the single-piece casting. The cut-guide further includes a rib extending from a channel wall on the main body portion. A damaged replaceable portion is excisable from the main-body portion by cutting through the single-piece casting along the cut-guide. The excised damaged replaceable portion may be replaced with the replacement part, which has substantially the same geometry, dimensions, and mechanical properties as an undamaged replaceable portion. The replacement part may be joined to the main body portion by mechanical means or by welding.

公开(公告)号：US20230304529A1

公开(公告)日：2023-09-28

申请号：US17704524

申请日：2022-03-25

Applicant: GM Global Technology Operations LLC

Inventor： David C. Klemstine ,  Guirong Cao ,  Jianghuai Yang ,  William A. Berry ,  Qigui Wang

IPC: F16C9/02 ,  F16C3/14 ,  F16C3/08 ,  B22D19/00

CPC classification number: F16C9/02 ,  F16C3/14 ,  F16C3/08 ,  B22D19/0072 ,  F16C2202/06 ,  F16C2204/60 ,  F16C2202/08 ,  F16C2220/02 ,  F16C2360/22

Abstract: An automobile vehicle crankshaft including a crankshaft casting of a nodular iron. The crankshaft casting includes multiple main journals coaxially aligned on a common crankshaft casting axis. Multiple crankpin journals are fixedly connected to the main journals by individual webs. Multiple lightening holes have individual ones of the multiple lightening holes integrally formed within individual ones of the crankpin journals during casting. A bubble space is located proximate to a mid-portion of selected ones of the multiple lightening holes of the crankpin journals. The bubble space locally increases a passage size of the selected ones of the multiple lightening holes and reduces a mass of the individual ones of the crankpin journals.

公开(公告)号：US11619255B1

公开(公告)日：2023-04-04

申请号：US17698410

申请日：2022-03-18

Applicant: GM Global Technology Operations LLC

Inventor： David C. Klemstine ,  Guirong Cao ,  Jianghuai Yang ,  William A. Berry ,  Qigui Wang ,  Anil K. Sachdev ,  Steven L. Burkholder

IPC: F16C3/04 ,  B22D19/04 ,  F16C3/10 ,  F16C3/20

Abstract: A crankshaft for an internal combustion engine is provided. The crankshaft comprises at least four main journals aligned on a crankshaft axis of rotation defining a centerline. The crankshaft further comprises at least three pin journals. Each pin journal is disposed about a respective pin journal axis and positioned between the main journals. Each of the pin journals is joined to a pair of crank arms. Each pair of crank arms is joined to a respective main journal. Each of the main journals, pin journals, and crank arms is made of a first metallic material. Each crank arm has an over-molded counterweight metallurgically bonded thereto. Each counterweight is disposed opposite a respective pin journal relative to the centerline for balance and stability. Each counterweight is made of a second metallic material. The crankshaft has a weight ratio of the second metallic material to the first metallic material of between 0.20 to 0.50.

公开(公告)号：US11608547B2

公开(公告)日：2023-03-21

申请号：US17224474

申请日：2021-04-07

Applicant: GM Global Technology Operations LLC

Inventor： Wenying Yang ,  Qigui Wang ,  Ming Liu

IPC: C22C21/02

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.

公开(公告)号：US20230067206A1

公开(公告)日：2023-03-02

申请号：US17462536

申请日：2021-08-31

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Margarita P. Thompson

IPC: C22C21/08 ,  C22F1/047

Abstract: An electrically conductive aluminum diecast alloy and an induction motor rotor made of the diecast aluminum alloy. The aluminum alloy includes commercially pure aluminum and a sufficient weight percent (wt%) of Copper (Cu), Magnesium (Mg), and Silicon (Si) to precipitate a 0.1 wt% to 5.0 wt% of a thermally stable Q-phase precipitate, AlwCuxMgySiz, after age hardening. Wherein w = about 14.3 at% to about 23.82 at% of Al; x = about 5.90 at% to about 9.52 at% of Cu; y = about 35.30 at% to about 42.85 at% of Mg; and z = about 28.57 at% to about 35.30 at% of Si. The induction motor rotor includes an aluminum squirrel cage rotor diecast onto a laminated electrical steel. The aluminum diecast squirrel cage rotor includes about 1.0 wt% of thermally stable Al5Cu2Mg8Si6 after age hardening.

公开(公告)号：US20230030336A1

公开(公告)日：2023-02-02

申请号：US17387278

申请日：2021-07-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Daniel J. Wilson ,  Qigui Wang ,  Liang Wang ,  Huaxin Li ,  Jason J. Coryell ,  Joshua L. Solomon

IPC: B23K26/70 ,  B23K26/24

Abstract: The concepts described herein provide a method, system, and apparatus for joining, via welding, first and second members fabricated from an aluminum alloy including aluminum, zinc, and manganese, such as 7000-series aluminum alloys, and a resultant workpiece. A junction is formed by a first member being disposed contiguously to a second member. A welding machine generates a weld pool at the junction that includes liquified aluminum alloy. An ultrasonic transducer directs ultrasonic energy in proximity to the weld pool. In some embodiments, an electro-magnetic transducer directs electro-magnetic energy in proximity to the weld pool. The first member is fused to the second member at the junction upon solidification of the weld pool.

公开(公告)号：US20220226885A1

公开(公告)日：2022-07-21

申请号：US17153049

申请日：2021-01-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qigui Wang ,  Thomas W. Gustafson ,  Steven L. Burkholder ,  Daniel J. Wilson ,  Gregory Melekian

IPC: B22D11/117 ,  B22D11/14 ,  B22D11/22

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.

公开(公告)号：US20220088671A1

公开(公告)日：2022-03-24

申请号：US17024919

申请日：2020-09-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dale A. Gerard ,  Qigui Wang ,  Tyson W. Brown ,  Ali Shabbir ,  Anil K. Sachdev

IPC: B22C9/10 ,  B22C1/18 ,  B22D17/22

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.

公开(公告)号：US20220082035A1

公开(公告)日：2022-03-17

申请号：US17021417

申请日：2020-09-15

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Devin R. Hess ,  Jeffrey Harris ,  Herbert W. Doty ,  Dale A. Gerard

IPC: F01L3/04 ,  F02F1/24 ,  B33Y80/00

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.

公开(公告)号：US11097337B2

公开(公告)日：2021-08-24

申请号：US16363526

申请日：2019-03-25

Applicant: GM Global Technology Operations LLC

Inventor： Jianghuai Yang ,  Qigui Wang ,  Dale A Gerard ,  Michael J Braskich

IPC: B22D19/00 ,  F02F1/00 ,  F02B77/04

Abstract: A method of manufacturing a cylinder block for an engine comprises providing a cylinder liner for the cylinder block and keeping the cylinder liner in a controlled atmosphere, removing the cylinder liner from the controlled atmosphere, removing moisture and gaseous contamination from the cylinder liner, and positioning the cylinder liner in a mold and over-casting a cylinder block in the mold.