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61.发明授权公开(公告)号：US09135691B2
公开(公告)日：2015-09-15
申请号：US13891235
申请日：2013-05-10
Applicant: GM Global Technology Operations LLC
Inventor： James W. Knight , Qigui Wang
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：US20140319956A1
公开(公告)日：2014-10-30
申请号：US13871109
申请日：2013-04-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Qigui Wang , Richard Jack Osborne , Yucong Wang , Margarita Thompson
CPC classification number: H02K17/165 , B22D19/0054 , B22D21/007 , C22C21/00
Abstract: A rotor includes a shorting ring defining a plurality of cavities therein, and a plurality of conductor bars each integral with the shorting ring and having an end disposed within a respective one of the plurality of cavities. The shorting ring and each of the conductor bars are formed from an aluminum alloy including a lanthanoid present in an amount of from about 0.1 part by weight to about 0.5 parts by weight based on 100 parts by weight of the aluminum alloy. An aluminum alloy, and a method of forming a rotor are also disclosed.
Abstract translation: 转子包括在其中限定多个空腔的短路环和多个导体条，每个导体条与短路环整体形成，并且具有设置在多个空腔中的相应一个空腔内的端部。 短路环和每个导体棒由包含镧系元素的铝合金形成，所述镧系元素的存在量相对于铝合金的100重量份为约0.1重量份至约0.5重量份。 还公开了一种铝合金和一种形成转子的方法。
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公开(公告)号：US20250122595A1
公开(公告)日：2025-04-17
申请号：US18486468
申请日：2023-10-13
Applicant: GM Global Technology Operations LLC
Inventor： Qigui Wang , Yi Liu , Ronald C. Daul , Ali Shabbir , Kestutis A. Sonta , Daniel J. Wilson
Abstract: Systems, methods, and devices for forming and implementing a graphene-copper composite powder are disclosed. The graphene-copper composite powder may be formed by providing an inert environment, introducing a first mist to the inert environment, introducing a second mist to the inert environment, and mixing the first mist and the second mist within the inert environment to thereby produce a graphene-copper composite powder. The first mist being atomized copper with a negative charge, and the second mist including graphene flakes with a positive charge. The graphene-copper composite powder may be used to form components via additive manufacturing or traditional powder metallurgy processes.
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公开(公告)号：US20240395438A1
公开(公告)日：2024-11-28
申请号：US18322211
申请日：2023-05-23
Applicant: GM Global Technology Operations LLC
Inventor： Yi Liu , Qigui Wang , Huaxin Li , Kestutis A. Sonta , Daniel J. Wilson
Abstract: A conductive cable for a battery electric vehicle is provided. The conductive cable comprises a plurality of first members in alignment to define a longitudinal axis of the conductive cable. Each first member comprises a first conductive wire about which a first outer layer is disposed for electric current to flow therethrough relative to the longitudinal axis. The first outer layer comprises a first metal substrate having a first side and an opposite second side. The first outer layer comprises a first copper-graphene (Cu-Gr) multilayer composite disposed on the first side and a second Cu-Gr multilayer composite disposed on the second side of the first metal substrate. Each first conductive wire comprises a first metallic material. The plurality of first members is disposed together along the longitudinal axis to define a cable bundle. The conductive cable further comprises a non-conductive layer disposed about the cable bundle.
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65.发明公开公开(公告)号：US20240339733A1
公开(公告)日：2024-10-10
申请号：US18296416
申请日：2023-04-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yi Liu , Qigui Wang , Huaxin Li , Kestutis A. Sonta , Daniel J. Wilson
IPC: H01M50/526 , H01M50/507 , H01M50/571
CPC classification number: H01M50/526 , H01M50/507 , H01M50/571 , H01M2220/20
Abstract: A busbar for high conductivity distribution of electrical power within a power module of an electric vehicle (EV). The busbar may include a plurality of multilayer composites having copper-graphene laminations. One or more of the multilayer composite may include a first copper-graphene lamination having a plurality of graphene layers disposed between a plurality of copper layers, a second copper-graphene lamination having a plurality of graphene layers disposed between a plurality of copper layers, and a carrier substrate disposed relative to the first and second copper-graphene laminations.
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Patent Agency Ranking
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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67.发明授权公开(公告)号：US11986879B2
公开(公告)日：2024-05-21
申请号：US17719737
申请日：2022-04-13
Applicant: GM Global Technology Operations LLC
Inventor： Liang Wang , Qigui Wang , Dale A. Gerard , Steven L. Burkholder , Ronald C. Daul
Abstract: A low-pressure sand-casting system includes a sand-casting mold receiving a molten casting material to cast an automobile vehicle cylinder head. A port is created in the automobile vehicle cylinder head. A manifold port metal core assembly includes a metal core. A compressible material coating is applied on the manifold port core metal core.
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公开(公告)号：US20240100592A1
公开(公告)日：2024-03-28
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 are provided. The method comprises providing a negative cast mold having cavities to form the cradle, and comprises providing a feeding mechanism disposed about the mold and in fluid communication with the cavities thereof. The feeding mechanism comprises a plurality of primary risers connected to and in fluid communication with cavities. The method further comprises melting a first metallic material to define a molten metallic material, and comprises moving the mold to a vertical casting orientation about a rotational axis, while feeding molten metallic material through the runner to the cavities. The method further comprises 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：US20240058860A1
公开(公告)日：2024-02-22
申请号：US17820683
申请日：2022-08-18
Applicant: GM Global Technology Operations LLC
Inventor： Lokesh Choudhary , Qigui Wang , Tiruttani Munikamal , Steven L. Burkholder , Thomas W. Gustafson , Dale A. Gerard
Abstract: A hybrid chill with enhanced heat transfer for casting of a sand cast aluminum engine block of a vehicle is provided. The hybrid chill comprises a base comprising an outer wall having a first side and a second side. Each of the first and second sides extends from a first longitudinal end to an opposite second longitudinal end. The outer wall is closed to define a hollow portion. The base further comprises a heat transfer fluid in a liquid phase disposed in the hollow portion. The heat transfer fluid has a boiling point of between 320° C. and 400° C. at 1 bar for enhanced heat transfer during casting. The chill further comprises a plurality of crankcase members. Each member is disposed on the first side. Each member is spaced apart from a respective adjacent member defining an open recess.
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公开(公告)号：US11890672B1
公开(公告)日：2024-02-06
申请号：US18161443
申请日：2023-01-30
Applicant: GM Global Technology Operations LLC
Inventor： Zhe Li , Qigui Wang , Wenying Yang , Daniel J. Wilson , Huaxin Li
CPC classification number: B22D17/02 , B22D21/007 , B22D27/02
Abstract: A method of making a die cast part having high wear resistance is provided. The method comprises providing a mold and an insert pin. The mold comprises an interior surface defining a cavity. The mold comprises a bore formed through the interior surface. The insert pin has a magnetic core having a magnetic field and a barrier disposed about the magnetic core. The insert pin is disposed in the bore and extends into the cavity. The method comprises filling the mold with metallic material such that the metallic material is in contact with the insert pin to define a contact layer. The method comprises modifying iron content within the contact layer with the magnetic field to define an outer layer and an inner layer formed between the outer layer and the insert pin. The inner layer has 3-5 wt % Fe and the outer layer has 0.01-0.5 wt % Fe.
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