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公开(公告)号：US10358695B2
公开(公告)日：2019-07-23
申请号：US15481666
申请日：2017-04-07
Applicant: GM Global Technology Operations LLC
Inventor： Michael J. Walker , Qigui Wang
Abstract: A method of making an aluminum alloy containing zirconium includes heating a first composition comprising aluminum to a first temperature of greater than or equal to about 580° C. to less than or equal to about 800° C. The method further includes adding a second composition including a copper-zirconium compound to the first composition to form a third composition. The copper-zirconium compound of the second composition has a molar composition of greater than or equal to about 41% zirconium to less than or equal to about 67% zirconium and a balance of copper. The method also includes solidifying the third composition at a cooling rate of greater than or equal to about 0.1° C./second to less than or equal to about 100° C./second to a second temperature less than or equal to a solidus temperature and decomposing the copper-zirconium compound at a third temperature of less than or equal to about 715° C.
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公开(公告)号：US20190099836A1
公开(公告)日：2019-04-04
申请号：US15723272
申请日：2017-10-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Liang Wang , Qigui Wang , Daniel J Wilson
IPC: B23K26/342 , B33Y10/00 , B33Y40/00 , B23K26/12 , B23K26/144 , B23K15/00 , B23K9/04
Abstract: A method for additive manufacturing of an article using pressurizing gas in an enclosure including introducing additive manufacturing equipment into the enclosure before sealing and removing air from the sealed enclosure to obtain a predetermined oxygen threshold. Next, the sealed enclosure is pressurized to obtain a predetermined pressure threshold using an inert gas. When the predetermined pressure threshold is obtained, the article is constructed using additive manufacturing.
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公开(公告)号：US20180304346A1
公开(公告)日：2018-10-25
申请号：US15494774
申请日：2017-04-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Jianghuai Yang , Qigui Wang , Daniel J Wilson , James D Cremonesi
CPC classification number: B22C9/22 , B22C3/00 , B22C9/02 , B22C9/10 , B22D25/02 , B22D25/06 , F16C3/08 , F16C2220/02
Abstract: A sand casting apparatus, a method of forming a sand casting apparatus, and an automotive component are provided. The sand casting apparatus includes a sand casting base comprising a sand mold and/or a sand core comprising a base sand mixture, where the base sand mixture includes a sand material and a binder material. The sand casting apparatus further comprises an outer layer disposed on the sand casting base. The outer layer comprises silicon, magnesium, calcium, zirconium, manganese, carbon, aluminum, and iron. The automotive component has portions defining an aperture therein. The automotive component is formed of cast iron and has a nodular graphite structure from interior matrix to surface, where the nodular graphite structure on the surface is formed by a sand core having an outer layer that has reacted with the cast iron automotive component to form the nodular graphite structured surface.
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公开(公告)号：US09839959B2
公开(公告)日：2017-12-12
申请号：US14573508
申请日：2014-12-17
Applicant: GM Global Technology Operations LLC
Inventor： Richard J. Osborne , Qigui Wang , Frank Sant
CPC classification number: B22C9/08 , B22C9/06 , B22C9/067 , B22C9/082 , B22D17/00 , B22D17/2272 , H02K15/0012
Abstract: A number of variations may include at least one mold portion that may define a first cavity, a circular gating system, and at least one sprue. The circular gating system may surround the first cavity and define a continuous in-gate from the circular gating to the first cavity. The at least one sprue and at least one vent may be in fluid communication with the circular gating system and the first cavity.
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公开(公告)号：US09576352B2
公开(公告)日：2017-02-21
申请号：US14253119
申请日：2014-04-15
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Wenying Yang , James W. Knight
CPC classification number: G06T7/0004 , G01N21/88 , G06T2207/30136
Abstract: A quantitative metallographic method to measure skin layer thickness in high pressure die cast aluminum components. Because the faster-cooling skin layer region exhibits a higher volume fraction of eutectic phases than that of a slower-cooling inner region, measurements showing such higher eutectic phases can be used to quantify such layer thickness. An image at various thicknesses of a location of interest in a cast component sample is first obtained using an image analyzer, from which eutectic volume fractions within each of the received images may be determined. Comparisons of the determined volume fractions can be made against a known or predicted quantity for a particular alloy composition, and then correlated to the skin layer thickness via differences between the received or measured quantities and those of the known standard.
Abstract translation: 用于测量高压压铸铝组件中的表层厚度的定量金相法。 因为更快冷却的表皮层区域表现出比较慢冷却的内部区域更高的共晶相体积分数，所以可以使用显示这种更高共晶相的测量来量化这种层厚度。 首先使用图像分析仪获得铸件成分样品中感兴趣位置的各种厚度的图像，从而可以确定每个接收图像内的共晶体积分数。 可以针对特定合金组合物的已知或预测量对所确定的体积分数进行比较，然后通过接收或测量的量与已知标准物质之间的差异与皮肤层厚度相关。
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Patent Agency Ranking
26.发明申请公开(公告)号：US20150165523A1
公开(公告)日：2015-06-18
申请号：US14105239
申请日：2013-12-13
Applicant: GM Global Technology Operations LLC
Inventor： Richard J. Osborne , Kevin P. Coleman , Margarita P. Thompson , Qigui Wang
CPC classification number: B22D19/0054 , B22D17/24
Abstract: Integrated devices and methods for compensating electric grade steel lamination stack height for use in a conventional two-plate high pressure die cast tool used for casting aluminum induction rotors. These devices and methods allow for significant variation in the lamination stack height without associated failures related to stack height variation, and also ensure constant and accurate clamping pressure on both the OD and ID of the steel lamination stack which prevents electric insulation damage, metal flow between laminations, large casting metal flash, and tool damage for excessive height laminations stacks. The clamping pressure is adjustable and is actuated from a single hydraulic cylinder which allows for a wide range of pressures to accommodate fine adjustment of clamping pressure to insure no damage occurs to the laminations.
Abstract translation: 用于补偿电级钢板叠层高度的集成装置和方法，用于铸造铝感应转子的常规双板高压压铸工具中。 这些装置和方法允许层叠堆叠高度的显着变化而没有与堆叠高度变化相关联的故障，并且还确保钢层压堆叠的OD和ID上的恒定和精确的夹紧压力，防止电绝缘损坏，金属间流动 叠片，大型铸造金属闪光，以及过高高度叠片的刀具损坏。 夹紧压力是可调节的，并且由单个液压缸致动，该液压缸允许宽范围的压力以适应夹紧压力的精细调节，以确保不会对叠片产生损坏。
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27.发明申请公开(公告)号：US20130336576A1
公开(公告)日：2013-12-19
申请号：US13891235
申请日：2013-05-10
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： James W. Knight , Qigui Wang
IPC: G06T7/00
CPC classification number: G06T7/0004 , G06T7/41 , G06T2207/10061 , G06T2207/30116
Abstract: A quantitative metallographic method to measure pore sizes and pore distributions in cast aluminum components. An image of a location of interest in a cast component sample is first obtained using an image analyzer. Spacing criteria, such as a measure of the secondary dendrite arm spacing, may be used with the received image to provide evidence of pore clustering. This allows the system to performing calculations to determine if multiple pores can be clustered or grouped together as a single pore in three-dimensional space. From this, the total area of the pores in each of these groups or clusters is calculated and used as a representation of the pore area for that cluster. In general, pore size and pore distribution measurements in cast components achieved by the present invention show accurate predictions of pore size and spacing, and in particular evidence a reduced tendency to under-predict the size and distribution of actual pores.
Abstract translation: 用于测量铸铝组分中的孔径和孔分布的定量金相法。 首先使用图像分析仪获得投射成分样本中感兴趣的位置的图像。 间隔标准，例如二次枝晶臂间距的测量，可以与接收的图像一起使用以提供孔聚集的证据。 这允许系统执行计算以确定多孔是否可以聚集或组合在一起作为三维空间中的单个孔。 由此，计算每个这些组或簇中的孔的总面积，并将其用作该簇的孔面积的表示。 通常，通过本发明实现的铸造组分中的孔径和孔分布测量显示了孔径和间距的准确预测，并且特别地证明了预测实际孔的尺寸和分布的降低的倾向。
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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：US12241431B1
公开(公告)日：2025-03-04
申请号：US18586986
申请日：2024-02-26
Applicant: GM Global Technology Operations LLC
Inventor： Yi Liu , Qigui Wang , Richard L. Metcalf , Angela Zsidi Alksninis , Devin R. Hess , Purushotham Kunduru , Cherng-chi Chang
IPC: F02F7/00 , B23K26/352 , C21D1/09 , B23K101/00 , B23K103/06 , F02F1/00
Abstract: An engine block for a vehicle includes a bore surface defining a cylinder bore. The bore surface exhibits a first microstructure and includes a pattern of a plurality of cycloidal features formed in the bore surface. The plurality of cycloidal features each exhibit a first length in a first axis and a second length in a second axis arranged 90 degrees from the first axis. The plurality of cycloidal features also exhibit a ratio of the first length to the second length in a range of 1:1.5 to 1.5:1. The plurality of cycloidal features further exhibit a second microstructure including tempered martensite, wherein the second microstructure is different from the first microstructure. The engine block is included in a vehicle. The cycloidal features are formed with a laser.
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公开(公告)号：US20250041971A1
公开(公告)日：2025-02-06
申请号：US18362111
申请日：2023-07-31
Applicant: GM Global Technology Operations LLC
Inventor： Jianghuai Yang , Ronald J. Helmstadt , Qigui Wang , Richard D. Ricchi
IPC: B23K26/356 , B23K26/00 , B23K26/0622 , B23K26/067 , C21D7/06 , C23C28/00 , F16J1/12
Abstract: A connecting rod for a vehicle and a method of laser peening a connecting rod. The connecting rod defines a pin opening at a first end and a cylindrical bore at a second end. A clear coating is applied on a first target surface and a second target surface of the connecting rod. The first and second opposing target surfaces are impinged in a localized area between the pin opening and the cylindrical bore with a plurality of pulses of pulsed laser beams. After laser peening, the localized area between the pin opening and the cylindrical bore exhibits compressive residual stresses at a depth of up to 0.75 millimeters.
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