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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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2.发明授权公开(公告)号：US11473456B2
公开(公告)日：2022-10-18
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
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.
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公开(公告)号：US20240191326A1
公开(公告)日：2024-06-13
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
CPC classification number: C22C21/02 , B22D17/00 , B22D21/007
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：US11639672B2
公开(公告)日：2023-05-02
申请号：US17101425
申请日：2020-11-23
Applicant: GM Global Technology Operations LLC
Inventor： Daniel J. Wilson , Huaxin Li , Edward J. Keating , Liang Wang , Devin R. Hess
IPC: F01L3/02 , C22C9/06 , B23K35/30 , B23K26/34 , B23K103/12
Abstract: A valve seat formed within an aluminum engine component includes a valve seat surface machined within the aluminum engine component, a layer of copper alloy material laser clad onto the valve seat surface of the aluminum engine component, the layer of copper alloy material having a thickness of less than 2.0 millimeters, and a layer of copper alloy/tool steel carbide material laser clad onto the layer of copper alloy material, the layer of copper alloy/tool steel carbide material having an average thickness of less than 0.5 millimeters, wherein the layer of copper alloy/tool steel carbide material has an outer surface that is machined to a final valve seat profile.
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公开(公告)号：US11326485B2
公开(公告)日：2022-05-10
申请号：US17014526
申请日：2020-09-08
Applicant: GM Global Technology Operations LLC
Inventor： Devin R. Hess , Qigui Wang , Thomas W. Gustafson , Dale A. Gerard
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.
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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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7.发明申请公开(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
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.
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公开(公告)号：US09981310B2
公开(公告)日：2018-05-29
申请号：US14841752
申请日：2015-09-01
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Devin R. Hess , Jason R. Traub , Christopher D. Cogan , Andrew J. Genualdi
CPC classification number: B22D27/08 , B22D1/007 , B22D21/04 , B22D25/02 , B22D35/04 , B22D41/00 , C22B9/026 , C22B21/06 , Y02P10/234
Abstract: A degassing and grain refinement system for a cast aluminum-based component and a method of achieving both hydrogen gas presence reduction and grain size reduction in a cast aluminum-based component. Ultrasonic vibrations are imparted to both the liquid metal travel path from its source to the mold to achieve the reduction in hydrogen gas in the molten metal, as well as to one or more locations within the mold to achieve relatively small and equiaxed grains in the component upon solidification.
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公开(公告)号：US20170056971A1
公开(公告)日：2017-03-02
申请号：US14841752
申请日：2015-09-01
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Devin R. Hess , Jason R. Traub , Christopher D. Cogan , Andrew J. Genualdi
CPC classification number: B22D27/08 , B22D1/007 , B22D21/04 , B22D25/02 , B22D35/04 , B22D41/00 , C22B9/026 , C22B21/06 , Y02P10/234
Abstract: A degassing and grain refinement system for a cast aluminum-based component and a method of achieving both hydrogen gas presence reduction and grain size reduction in a cast aluminum-based component. Ultrasonic vibrations are imparted to both the liquid metal travel path from its source to the mold to achieve the reduction in hydrogen gas in the molten metal, as well as to one or more locations within the mold to achieve relatively small and equiaxed grains in the component upon solidification.
Abstract translation: 用于铸铝基组分的脱气和晶粒细化系统以及在铸铝基组分中实现氢气存在还原和晶粒尺寸减小的方法。 超声波振动被赋予从其源到模具的液态金属行进路径，以实现熔融金属中的氢气的还原，以及模具内的一个或多个位置，以实现组件中的相对小的等轴晶粒 凝固后。
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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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