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公开(公告)号：US12276010B2
公开(公告)日：2025-04-15
申请号：US18064980
申请日：2022-12-13
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Liang Wang , Daniel J. Wilson , Dale A. Gerard , Devin R. Hess , Paul Boone
Abstract: An aluminum alloy for high pressure die casting of ultra-large vehicle body structures. The aluminum alloy includes about 4.00 to about 12.00 weight percent silicon (Si); about 0.20 weight percent maximum (Max) copper (Cu); about 0.40 weight percent Max magnesium (Mg); about 0.20 to about 0.60 weight percent iron (Fe); about 1.00 weight percent Max manganese (Mn); about 0.50 weight percent Max zinc (Zn); about 0.02 weight percent Max strontium (Sr); about 0.50 weight percent Max cerium (Ce); about 0.01 weight Max percent boron (B); and a remaining weight percent aluminum (Al). The aluminum alloy provides an as-cast yield strength of greater than 130 Megapascals (MPa), ultimate tensile strength of greater than 260 MPa, and elongation of greater than 6% without the need for heat treatment.
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公开(公告)号：US12206285B2
公开(公告)日：2025-01-21
申请号：US18174879
申请日：2023-02-27
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , John S. Agapiou , Liang Wang , Lei Hao , Daniel J. Wilson , Steven L Burkholder
Abstract: An induction rotor assembly having conductive bars is provided. The assembly comprises a lamination stack comprising a body having a first end and second ends to define a longitudinal axis. The body has an outer circumferential portion extending from the first end to the second end. The outer portion has a plurality of walls defining open slots formed from the first end through the second end. The assembly further comprises a first ring disposed on the first end and a second ring disposed on the second end. The assembly further comprises a plurality of conductive bars extending between the first and second rings. Each conductive bar is disposed in one of the slots such that the respective conductive bar is in contact with the lamination stack and connects the first and second rings. Each bar comprises an inner portion and a conductive outer skin disposed about the inner portion.
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公开(公告)号：US12121962B2
公开(公告)日：2024-10-22
申请号：US17935769
申请日：2022-09-27
Applicant: GM Global Technology Operations LLC
Inventor： Liang Wang , Qigui Wang , Tiruttani Munikamal , Shasha Vali Shaik , Suresh Kumar K , Steven L. Burkholder , Thomas W. Gustafson
CPC classification number: B22D30/00 , B22D21/007 , B22D25/02 , B22D41/04
Abstract: A system and method of manufacturing an aluminum fuel cell cradle includes providing a negative cast mold having cavities to form the cradle and providing a feeding mechanism disposed about the mold and in fluid communication with the cavities thereof. The feeding mechanism includes a plurality of primary risers connected to and in fluid communication with cavities. The method further includes melting a first metallic material to define a molten metallic material, and moving the mold to a vertical casting orientation about a rotational axis, while feeding molten metallic material through the runner to the cavities, and cooling the molten metallic material to define a solidified metallic material. A second solidification time in the risers is greater than a first solidification time in the mold such that shrinkage of the solidified metallic material occurs in the risers away from the mold.
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公开(公告)号：US12121960B1
公开(公告)日：2024-10-22
申请号：US18640032
申请日：2024-04-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Qigui Wang , John S. Agapiou , Liang Wang , Paul J. Boone
IPC: B22D17/22
CPC classification number: B22D17/2272
Abstract: A casting die includes a first ingate defining a first annular chamber and a second ingate defining a second annular chamber and spaced from the first ingate. The die includes a first end ring gate concentric with the first ingate and defining a first end ring chamber in fluid communication with the first annular chamber, and a second end ring gate concentric with the second ingate and defining a second end ring chamber in fluid communication with the second annular chamber. The die includes runners interconnecting the first and second end ring gates. Each of the runners defines a conductor bar channel in fluid communication with the first and second end ring chambers. The die includes an overflow gate disposed between the first and second ingates, wherein the overflow gate defines an annular overflow chamber in fluid communication with the conductor.
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公开(公告)号：US20240257996A1
公开(公告)日：2024-08-01
申请号：US18161496
申请日：2023-01-30
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , John S. Agapiou , Liang Wang , Lei Hao
CPC classification number: H01B13/0036 , B23K20/023 , H01B5/02 , H01B13/0016 , B23K2101/38 , B23K2103/10
Abstract: A method of making an electric conductor having a conductive skin layer. The method comprises providing a conductive member having a first width and a conductive layer disposed thereon for conductivity. The conductive layer has a second width to define a width ratio of the first width to the second width of 4:1 to 200:1. The conductive layer has greater conductivity than the conductive member. The method comprises disposing the conductive layer about the conductive member to define a conductive layered member and pressing the conductive layered member for mechanical contact to define a pressed layered member. The method comprises thermally treating the pressed layered member for diffusion between the conductive layer and the conductive member defining a diffused layered member. The method further comprises cooling the diffused layered member for diffusion bonding free of an intermetallic phase between the conductive layer and the conductive member.
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Patent Agency Ranking
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
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.
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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
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.
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公开(公告)号：US11300153B2
公开(公告)日：2022-04-12
申请号：US16297592
申请日：2019-03-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Huaxin Li , Liang Wang , Richard D. Ricchi
Abstract: A component includes a base formed of a majority of a first metallic element and a shell adhered to the base. The shell includes an inner portion having an inner surface contacting the base, an outer portion having an outer surface, and an intermediate zone connecting the inner portion to the outer portion. The shell is formed of a multi-element transition material, where the multi-element transition material includes a majority of a second metallic element at the inner surface and a majority of a third metallic element at the outer surface. The intermediate zone includes both the second and third metallic elements. Each of the first, second, and third metallic elements are different from one another. The component may be an automotive shaft. A method of forming the component may include depositing first and second powders on the base to form the inner and outer portions and the intermediate zone.
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公开(公告)号：US12172210B2
公开(公告)日：2024-12-24
申请号：US18045947
申请日：2022-10-12
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Liang Wang , Daniel J. Wilson , Dale A. Gerard , Devin R. Hess , Paul J. Boone
Abstract: A high pressure die casting (HPDC) system for casting ultra-large single-piece castings for vehicles. The HPDC system includes a clear feeding path from at least one ingate to a predetermined thicker section of a mold cavity, a last to solidify ingate having an equivalent or larger feeding modulus than the highest feeding modulus of the other ingates, and thermal management elements. The clear feeding path, last to solidify ingate, and thermal management elements ensure sufficient supplemental molten metal flow to the thicker portion of the mold cavity to accommodate for shrinkage of the thicker portion of an ultra large casting during the casting and solidification process.
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公开(公告)号：US20240291332A1
公开(公告)日：2024-08-29
申请号：US18174879
申请日：2023-02-27
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , John S. Agapiou , Liang Wang , Lei Hao , Daniel J. Wilson , Steven L. Burkholder
CPC classification number: H02K1/26 , H02K15/024
Abstract: An induction rotor assembly having conductive bars is provided. The assembly comprises a lamination stack comprising a body having a first end and second ends to define a longitudinal axis. The body has an outer circumferential portion extending from the first end to the second end. The outer portion has a plurality of walls defining open slots formed from the first end through the second end. The assembly further comprises a first ring disposed on the first end and a second ring disposed on the second end. The assembly further comprises a plurality of conductive bars extending between the first and second rings. Each conductive bar is disposed in one of the slots such that the respective conductive bar is in contact with the lamination stack and connects the first and second rings. Each bar comprises an inner portion and a conductive outer skin disposed about the inner portion.
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