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    Aluminum cylinder block and method of manufacture
    133.
    发明授权
    Aluminum cylinder block and method of manufacture 有权

    公开(公告)号：US10113504B2

    公开(公告)日：2018-10-30

    申请号：US14966512

    申请日：2015-12-11

    Applicant: GM Global Technology Operations LLC

    Inventor： Qigui Wang

    IPC: F02F7/00 ,  B22C9/02 ,  B22C9/10 ,  B23K20/12 ,  C21D9/00 ,  F02F1/00

    Abstract: A cast cylinder block for an internal combustion engine includes a first and a second cylinder bore and a shared bore wall. The first cylinder bore includes a first bore wall and the second cylinder bore includes a second bore wall. The shared cylinder bore wall includes a first portion and a second portion. A portion of the first bore wall combines with a portion of the second bore wall to form the shared cylinder bore wall. The first portion of the shared bore wall is an as-cast portion. The second portion of the shared bore wall is a metal matrix composite.

    ADHESION OF THERMAL SPRAY USING COMPRESSION TECHNIQUE
    136.
    发明申请
    ADHESION OF THERMAL SPRAY USING COMPRESSION TECHNIQUE 审中-公开

    公开(公告)号：US20180045134A1

    公开(公告)日：2018-02-15

    申请号：US15233254

    申请日：2016-08-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jianghuai Yang ,  Qigui Wang ,  Martin S Kramer ,  Dale A Gerard

    IPC: F02F1/00 ,  F02F7/00 ,  F02F1/18 ,  C23C4/12

    Abstract: An improved surface activation technique improves the adhesion of thermal spray coatings, which is useful for engine cylinder bores. The new method includes compressing the cylinder bore surface to create a surface profile on the surface, such as through rolling a roller along the surface. An engine block is also provided, which includes a plurality of cylinder bores, each cylinder bore having an inner surface, and each inner surface having a surface profile that includes a helical groove and other surface profiles formed in the inner surface. A thermal spray coating is formed on the inner surface of each cylinder bore, the thermal spray coating being adhered to the surface profile of the inner surface. A roller assembly for activating the surface is also provided.

    Quick analysis of residual stress and distortion in cast aluminum components
    137.
    发明授权
    Quick analysis of residual stress and distortion in cast aluminum components 有权
    快速分析铸铝组件的残余应力和变形

    公开(公告)号：US09489620B2

    公开(公告)日：2016-11-08

    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: G06N3/10 ,  G06N3/08 ,  G06F17/10 ,  C22F1/04 ,  G06F17/50

    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。

    PRODUCT DESIGN RELIABILITY WITH CONSIDERATION OF MATERIAL PROPERTY CHANGES DURING SERVICE
    139.
    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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