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21. 发明申请

US20190099836A1 METHOD OF MANUFACTURING AN ARTICLE USING PRESSURIZING GAS 审中-公开
公开(公告)号：US20190099836A1
公开(公告)日：2019-04-04
申请号：US15723272
申请日：2017-10-03
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Liang Wang , Qigui Wang , Daniel J Wilson
IPC分类号： B23K26/342 , B33Y10/00 , B33Y40/00 , B23K26/12 , B23K26/144 , B23K15/00 , B23K9/04
摘要： 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.

22. 发明申请

US20180304346A1 SAND CORE TO ELIMINATE DEGENERATED SKIN 审中-公开
公开(公告)号：US20180304346A1
公开(公告)日：2018-10-25
申请号：US15494774
申请日：2017-04-24
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Jianghuai Yang , Qigui Wang , Daniel J Wilson , James D Cremonesi
IPC分类号： B22C9/22 , B22C3/00 , B22C9/02 , B22C9/10 , B22D25/02 , B22D25/06 , F16C3/08
CPC分类号： B22C9/22 , B22C3/00 , B22C9/02 , B22C9/10 , B22D25/02 , B22D25/06 , F16C3/08 , F16C2220/02
摘要： 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.

23. 发明授权

US09839959B2 Center circular gating design for squeeze casting induction rotor core 有权
公开(公告)号：US09839959B2
公开(公告)日：2017-12-12
申请号：US14573508
申请日：2014-12-17
申请人： GM Global Technology Operations LLC
发明人： Richard J. Osborne , Qigui Wang , Frank Sant
IPC分类号： B22C9/08 , B22C9/06 , H02K15/00 , B22D17/00 , B22D17/22
CPC分类号： B22C9/08 , B22C9/06 , B22C9/067 , B22C9/082 , B22D17/00 , B22D17/2272 , H02K15/0012
摘要： 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.

24. 发明授权

US09576352B2 Method to determine skin-layer thickness in high pressure die castings 有权
标题翻译：确定高压压铸件中皮层厚度的方法
公开(公告)号：US09576352B2
公开(公告)日：2017-02-21
申请号：US14253119
申请日：2014-04-15
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang , Wenying Yang , James W. Knight
IPC分类号： G06T7/00 , G01N21/88
CPC分类号： G06T7/0004 , G01N21/88 , G06T2207/30136
摘要： 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.
摘要翻译：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。

25. 发明申请

US20150165523A1 COMPENSATION MECHANISM FOR CAST ROTOR LAMINATION STACK HEIGHT AND COMPRESSION PRESSURE CONTROL 有权
标题翻译：铸件转子堆叠高度和压缩压力控制补偿机制
公开(公告)号：US20150165523A1
公开(公告)日：2015-06-18
申请号：US14105239
申请日：2013-12-13
申请人： GM Global Technology Operations LLC
发明人： Richard J. Osborne , Kevin P. Coleman , Margarita P. Thompson , Qigui Wang
IPC分类号： B22D19/00 , B22D17/24
CPC分类号： B22D19/0054 , B22D17/24
摘要： 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.
摘要翻译：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。

26. 发明申请

US20130336576A1 METALLOGRAPHIC METHOD FOR ACCURATE MEASUREMENT OF PORE SIZES AND DISTRIBUTIONS IN METAL CASTINGS 有权
标题翻译：精密测量金属铸件中孔径和分布的金相图法
公开(公告)号：US20130336576A1
公开(公告)日：2013-12-19
申请号：US13891235
申请日：2013-05-10
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： James W. Knight , Qigui Wang
IPC分类号： G06T7/00
CPC分类号： G06T7/0004 , G06T7/41 , G06T2207/10061 , G06T2207/30116
摘要： 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.
摘要翻译：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。

27. 发明公开

US20240257996A1 SYSTEM AND METHOD OF MAKING AN ELECTRIC CONDUCTOR HAVING A CONDUCTIVE SKIN LAYER 审中-公开
公开(公告)号：US20240257996A1
公开(公告)日：2024-08-01
申请号：US18161496
申请日：2023-01-30
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang , John S. Agapiou , Liang Wang , Lei Hao
IPC分类号： H01B13/00 , B23K20/02 , H01B5/02
CPC分类号： H01B13/0036 , B23K20/023 , H01B5/02 , H01B13/0016 , B23K2101/38 , B23K2103/10
摘要： A method of making an electric conductor having a conductive skin layer. The method comprises providing a conductive member having a first width and a conductive layer disposed thereon for conductivity. The conductive layer has a second width to define a width ratio of the first width to the second width of 4:1 to 200:1. The conductive layer has greater conductivity than the conductive member. The method comprises disposing the conductive layer about the conductive member to define a conductive layered member and pressing the conductive layered member for mechanical contact to define a pressed layered member. The method comprises thermally treating the pressed layered member for diffusion between the conductive layer and the conductive member defining a diffused layered member. The method further comprises cooling the diffused layered member for diffusion bonding free of an intermetallic phase between the conductive layer and the conductive member.

28. 发明授权

US12044270B2 Lightweight nodular iron crankshaft for heavy duty engine 有权
公开(公告)号：US12044270B2
公开(公告)日：2024-07-23
申请号：US17704524
申请日：2022-03-25
申请人： GM Global Technology Operations LLC
发明人： David C. Klemstine , Guirong Cao , Jianghuai Yang , William A. Berry , Qigui Wang
IPC分类号： F16C3/04 , B22D19/00 , F16C3/08 , F16C3/14
CPC分类号： F16C3/08 , B22D19/0072 , F16C3/14 , B23P2700/07 , F16C2202/06 , F16C2204/60 , F16C2220/02
摘要： An automobile vehicle crankshaft including a crankshaft casting of a nodular iron. The crankshaft casting includes multiple main journals coaxially aligned on a common crankshaft casting axis. Multiple crankpin journals are fixedly connected to the main journals by individual webs. Multiple lightening holes have individual ones of the multiple lightening holes integrally formed within individual ones of the crankpin journals during casting. A bubble space is located proximate to a mid-portion of selected ones of the multiple lightening holes of the crankpin journals. The bubble space locally increases a passage size of the selected ones of the multiple lightening holes and reduces a mass of the individual ones of the crankpin journals.

29. 发明公开

US20240226827A9 METHOD OF MAKING A MAGNETIC MATERIAL AND A FLUIDIZED BED MIXER FOR MAKING THE SAME 审中-公开
公开(公告)号：US20240226827A9
公开(公告)日：2024-07-11
申请号：US18049012
申请日：2022-10-24
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang , Yucong Wang
IPC分类号： B01F33/40 , B01F23/60 , B01F23/80 , B01F35/00 , B22F3/10 , B22F9/04 , H01F1/057
CPC分类号： B01F33/401 , B01F23/69 , B01F23/804 , B01F23/81 , B01F35/55 , B22F3/10 , B22F9/04 , H01F1/0577 , B22F2301/355 , B22F2998/10
摘要： A fluidized bed mixer for combining a first powder with a second powder for manufacturing a magnet and a method of using the fluidized bed mixer for making the magnet. The first powder material is an alloy powder containing neodymium (Nd), iron (Fe), and boron (B), and the second powder material is an alloy powder or elemental metal powder containing one or more of dysprosium (Dy) and terbium (Tb). The fluidized bed mixer includes a fluidized bed portion in an upper portion of a mixing chamber, a cascading baffle system beneath the fluidized bed portion, and combined powder collection area beneath the cascading baffle system. The fluidized bed mixer is configured to homogenously combine a first powder material with a second powder material in such a way that particles of the second powder material adheres to and covers the outer surfaces of the particles of the first powder material.

30. 发明授权

US11821384B1 Manufacturing of aluminum piston with cast iron ring carrier using powder bed fusion method 有权
公开(公告)号：US11821384B1
公开(公告)日：2023-11-21
申请号：US17731365
申请日：2022-04-28
申请人： GM Global Technology Operations LLC
发明人： Qigui Wang , Jeffrey B. Harris , Ante Tony Lausic , Paul J Wolcott , Dale A. Gerard , Tyson Whittier Brown
IPC分类号： F02F3/00 , F16J9/00 , B22F10/28 , B33Y10/00 , B33Y80/00
CPC分类号： F02F3/0084 , B22F10/28 , B33Y10/00 , B33Y80/00 , F16J9/00 , F02F2200/00
摘要： A method to manufacture an automobile vehicle engine aluminum piston, comprises: printing an aluminum piston crown portion including an additive manufacturing (AM) piston crown work piece using initial aluminum powders defining an initial aluminum powder bed; removing the aluminum piston crown portion from the initial aluminum powder bed; fixedly joining a cast iron ring carrier to the AM piston crown work piece; placing the aluminum piston crown portion together with the cast iron ring carrier into a secondary and a tertiary aluminum powder bed; and printing a piston skirt integrally connected to the AM piston crown work piece and to the cast iron ring carrier.

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