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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：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：US20230339052A1
公开(公告)日：2023-10-26
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：US20220170138A1
公开(公告)日：2022-06-02
申请号：US17109746
申请日：2020-12-02
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Dale A. Gerard , Devin R. Hess , Herbert W. Doty , Daniel J. Wilson
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).
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9.发明申请PRODUCT DESIGN RELIABILITY WITH CONSIDERATION OF MATERIAL PROPERTY CHANGES DURING SERVICE 审中-公开产品设计在服务期间考虑材料性质变化的可靠性公开(公告)号：US20150213164A1
公开(公告)日：2015-07-30
申请号：US14164613
申请日：2014-01-27
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Devin R. Hess , Michael J. Walker , Herbert W. Doty , Bowang Xiao
IPC: G06F17/50
CPC classification number: G06F17/5018
Abstract: A method of computationally determining material property changes for a cast aluminum alloy component. Accuracy of the determination is achieved by taking into consideration material property changes over the projected service life of the component. In one form, the method includes accepting time-dependent temperature data and using that data in conjunction with one or more constitutive relationships to quantify the impact of various temperature regimes or conditions on the properties of heat-treatable components and alloys. Finite element nodal analyses may be used as part of the method to map the calculated material properties on a nodal basis, while a viscoplastic model may be used to determine precipitation hardening and softening effects as a way to simulate the time and temperature dependencies of the material. The combined approach may be used to determine the material properties over the expected service life of a cast component made from such material.
Abstract translation: 一种计算确定铸造铝合金部件的材料特性变化的方法。 确定的准确性是通过考虑到零件的预计使用寿命内的材料性质变化来实现的。 在一种形式中，该方法包括接受时间依赖性温度数据并且结合一个或多个本构关系使用该数据来量化各种温度方案或条件对可热处理组分和合金的性质的影响。 可以使用有限元节点分析作为方法的一部分，以在节点的基础上映射计算的材料性质，而粘弹性模型可用于确定沉淀硬化和软化效应，作为模拟材料的时间和温度依赖性的方式 。 组合方法可用于确定由这种材料制成的铸造部件的预期使用寿命的材料性能。
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公开(公告)号：US20220162968A1
公开(公告)日：2022-05-26
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
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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