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公开(公告)号：US20240421645A1
公开(公告)日：2024-12-19
申请号：US18337192
申请日：2023-06-19
Applicant: GM Global Technology Operations LLC
Inventor： Yi Liu , Qigui Wang , Huaxin Li , Kestutis A. Sonta , Daniel J. Wilson
Abstract: A conductive composite stator unit for an electric motor of a vehicle is provided. The stator unit comprises a stator core comprising a body having a first core end and an opposing second core end. The stator unit further comprises a plurality of conductive bars extending from the first core end to the second core end. Each conductive bar comprises a straight portion disposed in one of the slots such that the respective conductive bar is in contact with the stator core. Each conductive bar comprising a central portion and an outer layer disposed thereabout for electrical current to flow therethrough relative to the longitudinal axis, the outer layer comprises at least two copper-graphene (Cu-Gr) layers. Each Cu-Gr layer comprises a copper layer and a graphene layer. The stator unit further comprises an insulator layer disposed about each of the plurality of conductive bars.
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公开(公告)号：US20240123494A1
公开(公告)日：2024-04-18
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：US11772156B2
公开(公告)日：2023-10-03
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
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.
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公开(公告)号：US11752567B2
公开(公告)日：2023-09-12
申请号：US17104139
申请日：2020-11-25
Applicant: GM Global Technology Operations LLC
Inventor： Huaxin Li , Cheonjae Bahk , Daniel J. Wilson
IPC: B23K11/20 , B23K11/26 , B23K103/24 , B23K103/20 , B23K101/00
CPC classification number: B23K11/20 , B23K11/26 , B23K2101/006 , B23K2103/20 , B23K2103/24
Abstract: A method of joining a first piece of an automotive component that is made from a first material to a second piece of the automotive component that is made from a second material includes machining a fay surface onto each of the first and second pieces of the automotive component, cleaning the fay surfaces of each of the first and second pieces of the automotive component, placing a metal filler between the fay surfaces of the first and second pieces of the automotive component, holding the first and second pieces together with the metal filler positioned between the fay surfaces of the first and second pieces, and passing an electric current through the first piece, the metal filler and the second piece to melt the metal filler and weld the first piece to the second piece.
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公开(公告)号：US11618937B2
公开(公告)日：2023-04-04
申请号：US16657146
申请日：2019-10-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianghuai Yang , Qigui Wang , Dale A. Gerard , James D. Cremonesi , Daniel J. Wilson
Abstract: A nodular iron alloy and automotive components, such as a crankshaft, are provided. The nodular iron alloy may include iron, about 2.2-3.2 wt % carbon, about 1.7-2.3 wt % silicon, about 0.2-0.6 wt % manganese, a maximum of 0.03 wt % phosphorus, a maximum of 0.02 wt % sulfur, about 0.2-0.6 wt % copper, about 0.1-0.4 wt % chromium, about 0.4-0.8 wt % nickel, about 0.15-0.45 wt % molybdenum, about 0.2-1.0 wt % cobalt, about 0.02-0.06 wt % magnesium, and a maximum of 0.002 wt % rare earth element(s). The nodular iron alloy may have a Young's modulus in the range of 175-195 GPa and an as-cast ultimate tensile strength in the range of 750-950 MPa. This alloy possesses favorable strength, stiffness and noise/vibration/harshness qualities, making it suitable in crankshaft applications. A method of forming the nodular iron alloy includes feeding a magnesium-based material into a molten iron alloy through a continuous system at a constant amount.
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Patent Agency Ranking
公开(公告)号：US20220161352A1
公开(公告)日：2022-05-26
申请号：US17104139
申请日：2020-11-25
Applicant: GM Global Technology Operations LLC
Inventor： Huaxin Li , Cheonjae Bahk , Daniel J. Wilson
Abstract: A method of joining a first piece of an automotive component that is made from a first material to a second piece of the automotive component that is made from a second material includes machining a fay surface onto each of the first and second pieces of the automotive component, cleaning the fay surfaces of each of the first and second pieces of the automotive component, placing a metal filler between the fay surfaces of the first and second pieces of the automotive component, holding the first and second pieces together with the metal filler positioned between the fay surfaces of the first and second pieces, and passing an electric current through the first piece, the metal filler and the second piece to melt the metal filler and weld the first piece to the second piece.
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公开(公告)号：US20220097173A1
公开(公告)日：2022-03-31
申请号：US17035821
申请日：2020-09-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Liang Wang , Qigui Wang , Daniel J. Wilson
IPC: B23K26/342 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B23K37/06
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.
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公开(公告)号：US12097583B2
公开(公告)日：2024-09-24
申请号：US17729603
申请日：2022-04-26
Applicant: GM Global Technology Operations LLC
Inventor： Daniel J. Wilson , Liang Wang , Qigui Wang , Devin R Hess , Michelle A. Wood , Ali Shabbir , Ronald C. Daul , Dale A. Gerard , Gregory Melekian
IPC: B23P6/04
CPC classification number: B23P6/04
Abstract: A method of repairing an ultra-large single-piece cast component of a vehicle body. The method includes the steps of locating a damaged portion of the cast component, determining an extent of the damaged portion of the ultra-large cast component, defining a cut-line sectioning off the damaged portion from an undamaged portion of the ultra-large cast component, cutting along the cut-line to excise the damaged portion from the undamaged portion of the ultra-large cast component, and joining a replacement piece to the undamaged portion of the ultra-large cast component. The replacement piece is fabricated based on the original manufacturer's geometry and dimensional data of the excised damaged portion. The undamaged portion of the ultra-large cast component remains on the vehicle body during the repair.
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公开(公告)号：US12097555B2
公开(公告)日：2024-09-24
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 , B23P6/04 , B62D25/2063
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：US20230402687A1
公开(公告)日：2023-12-14
申请号：US17835344
申请日：2022-06-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jing Gao , Brian J. Koch , Yanyan Zhang , Zhe Li , Daniel J. Wilson , Xingcheng Xiao
IPC: H01M50/131 , H01M50/116
CPC classification number: H01M50/131 , H01M50/116
Abstract: A battery cell includes an anode, a cathode, a liquid electrolyte, and a battery cell case. The battery cell case is configured to house the anode, the cathode, and the liquid electrolyte and includes a case interior wall arranged proximate one of the anode and the cathode, a battery case ceiling, and a battery case floor catching and collecting the liquid electrolyte due to force of gravity. The case interior wall defines a pattern of surface tension varying between hydrophobic and hydrophilic along the case interior wall between the battery case floor and the battery cell ceiling. The pattern of surface tension thereby facilitates self-propulsion of the liquid electrolyte in opposition to the force of gravity and a predetermined distribution of the liquid electrolyte along the battery cell wall.
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