公开(公告)号：US09770757B2

公开(公告)日：2017-09-26

申请号：US14825238

申请日：2015-08-13

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Bing Ye ,  Haiyan Jiang

IPC: B22D19/00 ,  B22D19/16 ,  B22D25/06 ,  C25D5/44 ,  C23C22/66 ,  C23C22/78 ,  C23C22/83 ,  C23F1/36 ,  B22D19/04 ,  B22D21/00 ,  C23G1/02 ,  C23G1/12 ,  C23G1/22 ,  C23G1/24 ,  C25D5/50 ,  C23C18/54 ,  C25D3/18

CPC classification number: B22D25/06 ,  B22D19/0081 ,  B22D19/04 ,  B22D21/007 ,  C23C18/54 ,  C23C22/66 ,  C23C22/78 ,  C23C22/83 ,  C23F1/36 ,  C23G1/02 ,  C23G1/125 ,  C23G1/22 ,  C23G1/24 ,  C25D3/18 ,  C25D5/44 ,  C25D5/50

Abstract: A method of forming a bi-metallic casting. The method includes providing a metal preform of a desired base shape defining a substrate surface and removing a natural oxide layer and surface contamination from the substrate surface to yield a cleaned metal preform. The method further includes galvanizing the cleaned metal preform, yielding a galvanized metal preform followed by electroplating a thin nickel film on at least a portion of the substrate surface of the galvanized metal preform. Additionally, the method includes metallurgically bonding the portion of the metal preform having the nickel film with an overcast metal to form a bi-metallic casting. The nickel film promotes a metallurgical bond between the metal preform and the overcast metal.

公开(公告)号：US09652566B2

公开(公告)日：2017-05-16

申请号：US13965584

申请日：2013-08-13

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang

IPC: G06F7/60 ,  G06F17/50 ,  G01M5/00

CPC classification number: G06F17/5009 ,  G01M5/0033 ,  G06F2217/16 ,  G06F2217/41

Abstract: A method of simulating aluminum oxides defects in aluminum castings comprises determining the free surface area for a plurality of particles of aluminum in an aluminum melt, storing the free surface area for each particle of aluminum, tracking the free surface area change during mold filling, and calculating the total area of entrained or surface oxide films based on the free surface area change during mold filling. The method may further comprise a scalar variable method and a discrete particle method coupled together to simulate the aluminum oxide defects in aluminum castings.

公开(公告)号：US20170107599A1

公开(公告)日：2017-04-20

申请号：US14886263

申请日：2015-10-19

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Wenying Yang ,  Bing Ye

IPC: C22C21/02 ,  B22D17/00 ,  C21D1/18 ,  C22F1/043 ,  C22F1/00

CPC classification number: C22C21/02 ,  B22D17/00 ,  B22D21/007 ,  C21D1/18 ,  C22F1/002 ,  C22F1/043

Abstract: Copper-free aluminum alloys suitable for high pressure die casting and capable of age-hardening under elevated temperatures. The alloy includes about 7-15 wt % silicon, about 0 to 0.6 wt % magnesium, about 0 to 1.0 wt % iron, about 0 to 1.0 wt % manganese, about 0 to 1.0 wt % zinc, about 0 to 0.1 wt % strontium, about 0 to 0.5 wt % titanium, about 0 to 0.5 wt % zirconium, about 0 to 0.5 wt % vanadium, about 0 to 0.5 wt % copper, and about 0 to 1.0 wt % nickel, with a balance of aluminum. Methods for making high pressure die castings and castings manufactured from the alloy.

公开(公告)号：US20170043394A1

公开(公告)日：2017-02-16

申请号：US14825238

申请日：2015-08-13

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Bing Ye ,  Haiyan Jiang

IPC: B22D25/06 ,  C25D5/44 ,  C23C22/66 ,  B22D21/00 ,  C23C22/83 ,  C23F1/36 ,  B22D19/04 ,  C25D3/12 ,  C23C22/78

CPC classification number: B22D25/06 ,  B22D19/0081 ,  B22D19/04 ,  B22D21/007 ,  C23C18/54 ,  C23C22/66 ,  C23C22/78 ,  C23C22/83 ,  C23F1/36 ,  C23G1/02 ,  C23G1/125 ,  C23G1/22 ,  C23G1/24 ,  C25D3/18 ,  C25D5/44 ,  C25D5/50

Abstract: A method of forming a bi-metallic casting. The method includes providing a metal preform of a desired base shape defining a substrate surface and removing a natural oxide layer and surface contamination from the substrate surface to yield a cleaned metal preform. The method further includes galvanizing the cleaned metal preform, yielding a galvanized metal preform followed by electroplating a thin nickel film on at least a portion of the substrate surface of the galvanized metal preform. Additionally, the method includes metallurgically bonding the portion of the metal preform having the nickel film with an overcast metal to form a bi-metallic casting. The nickel film promotes a metallurgical bond between the metal preform and the overcast metal.

Abstract translation: 一种形成双金属铸件的方法。 该方法包括提供限定衬底表面的期望基底形状的金属预制件，并且从衬底表面去除自然氧化物层和表面污染物以产生清洁的金属预制件。 该方法还包括镀锌清洁的金属预制件，产生镀锌金属预制件，随后在镀锌金属预制件的基材表面的至少一部分上电镀薄镍膜。 此外，该方法包括将具有镍膜的金属预成型件的部分与阴极金属冶金结合以形成双金属铸件。 镍膜促进金属预成型件和阴极金属之间的冶金结合。

公开(公告)号：US20160250683A1

公开(公告)日：2016-09-01

申请号：US14632308

申请日：2015-02-26

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Jason R. Traub ,  Michael J. Walker ,  Anil K. Sachdev

IPC: B22D21/00 ,  B22D25/02 ,  G01N33/20 ,  C22C21/02

CPC classification number: B22D21/007 ,  B22D25/02 ,  C22C21/02 ,  C22C21/12 ,  C22C21/16 ,  C22C21/18 ,  C22F1/043 ,  C22F1/057 ,  G01N33/20

Abstract: An aluminum alloy that can be cast into structural components wherein at least some of the raw materials used to produce the alloy are sourced from secondary production sources. In addition to aluminum as the primary constituent, such an alloy includes 5 to 14% silicon, 0 to 1.5% copper, 0.2 to 0.55% magnesium, 0.2 to 1.2% iron, 0.1 to 0.6% manganese, 0 to 0.5% nickel, 0 to 0.8% zinc, 0 to 0.2% of other trace elements selected from the group consisting essentially of titanium, zirconium, vanadium, molybdenum and cobalt. In a preferred form, most of the aluminum is from a secondary production source. Methods of analyzing a secondary production aluminum alloy to determine its constituent makeup is also disclosed, as is a method of adjusting the constituent makeup of such an alloy in situations where the alloy is out of tolerance when measured against its primary source counterpart.

Abstract translation: 可以铸造成结构部件的铝合金，其中用于生产合金的至少一些原料来自二次生产源。 除了铝作为主要成分之外，这种合金包括5至14％的硅，0至1.5％的铜，0.2至0.55％的镁，0.2至1.2％的铁，0.1至0.6％的锰，0至0.5％的镍，0 至0.8％的锌，0至0.2％的其它选自基本上由钛，锆，钒，钼和钴组成的微量元素。 在优选的形式中，大多数铝来自二次生产源。 还公开了分析二次生产铝合金以确定其构成组成的方法，以及在相对于其主要源对应物测量合金超出耐受性的情况下调整这种合金的组成构成的方法。

公开(公告)号：US20150356402A1

公开(公告)日：2015-12-10

申请号：US14295404

申请日：2014-06-04

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Yucong Wang ,  Zhiqiang Gao ,  Zhibin Quan

IPC: G06N3/08 ,  G06F17/10 ,  C22F1/04

CPC classification number: G06N3/08 ,  C22F1/04 ,  G06F17/10 ,  G06F17/50 ,  G06F17/5018 ,  G06F2217/41 ,  G06N3/10 ,  Y02T10/82

Abstract: A computer-implemented system and method of rapidly predicting at least one of residual stress and distortion of a quenched aluminum casting. Input data corresponding to at least one of topological features, geometrical features and quenching process parameters associated with the casting is operated upon by the computer that is configured as a neural network to determine output data corresponding to at least one of the residual stress and distortion based on the input data. The neural network is trained to determine the validity of at least one of the input data and output data and to retrain the network when an error threshold is exceeded. Thereby, residual stresses and distortion in the quenched aluminum castings can be predicted using the embodiments in a tiny fraction of the time required by conventional finite-element based approaches.

Abstract translation: 一种计算机实现的系统和方法，其快速预测淬火铝铸件的残余应力和变形中的至少一种。 对应于与铸造相关联的拓扑特征，几何特征和淬火处理参数中的至少一个的输入数据由配置为神经网络的计算机进行操作，以确定对应于基于残余应力和失真的至少一个的输出数据 对输入数据。 训练神经网络以确定输入数据和输出数据中的至少一个的有效性，并且当超过错误阈值时重新训练网络。 因此，可以在传统的基于有限元法的方法所需的很小一部分时间内使用实施例来预测淬火铝铸件中的残余应力和变形。

公开(公告)号：US09205487B2

公开(公告)日：2015-12-08

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

IPC: B22D19/00 ,  B22D17/24

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。

公开(公告)号：US20150294448A1

公开(公告)日：2015-10-15

申请号：US14253119

申请日：2014-04-15

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Wenying Yang ,  James W. Knight

IPC: G06T7/00

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。

公开(公告)号：US20140260805A1

公开(公告)日：2014-09-18

申请号：US14174240

申请日：2014-02-06

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Dale A. Gerard

IPC: C22B21/02

CPC classification number: C22B21/02 ,  C22B21/062

Abstract: A method of reducing entrained aluminum oxides in aluminum castings. The method comprises preheating a furnace charge to remove moisture and contaminants. The furnace charge is then coated on all free surfaces with a layer of flux. Subsequently the furnace charge is melted in a furnace to form a melt bath of liquid aluminum suitable for casting. The flux layer removes the naturally occurring oxide film from the furnace charge surface as well as provides a cover flux to protect the melt bath from oxidation.

Abstract translation: 一种减少铝铸件中夹带的氧化铝的方法。 该方法包括预热炉装料以除去水分和污染物。 然后将炉装料用一层焊剂涂覆在所有自由表面上。 随后，炉装料在炉中熔化以形成适于铸造的液态铝的熔池。 助焊剂层从炉料表面除去天然存在的氧化膜，并提供覆盖助熔剂以保护熔融液免于氧化。

公开(公告)号：US08418745B2

公开(公告)日：2013-04-16

申请号：US13648293

申请日：2012-10-10

Applicant: GM Global Technology Operations LLC

Inventor： Christopher D. Cogan ,  Stephen M. Fitch ,  Qigui Wang

IPC: B22D41/00

CPC classification number: B22D41/12 ,  B22D17/30 ,  B22D41/00 ,  B22D41/18 ,  B22D41/58

Abstract: A method of forming a casting using a casting apparatus is disclosed, the method including the steps of lowering a ladle having a hollow interior into a source of molten material and an aperture facilitating flow into the hollow interior, filling the interior of the ladle with the molten material through the aperture, introducing an inert gas into a portion of a nozzle, removing the ladle from the source of molten material, causing the nozzle to contact a casting mold, and pressurizing the hollow interior with an inert gas to cause the molten material to flow into the casting mold.

Abstract translation: 公开了一种使用铸造装置形成铸件的方法，该方法包括以下步骤：将具有中空内部的钢包放入熔融材料源中，以及促进流入中空内部的孔，并将其浇注到钢包的内部 熔融材料通过孔，将惰性气体引入喷嘴的一部分，从熔融材料源移除钢包，使喷嘴接触铸模，并用惰性气体对中空内部进行加压，以使熔融材料 流入铸模。