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    METHOD OF MAKING NON-RECTANGULAR MAGNETS
    12.
    发明申请
    METHOD OF MAKING NON-RECTANGULAR MAGNETS 有权
    制造非矩形磁铁的方法

    公开(公告)号：US20140314611A1

    公开(公告)日：2014-10-23

    申请号：US13868468

    申请日：2013-04-23

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Shekhar G. Wakade ,  Yucong Wang ,  Edward P. Becker

    IPC: H01F41/02

    CPC classification number: H01F41/0246 ,  H01F41/0266

    Abstract: A number of variations may include a method including providing a first powder comprising iron; compacting the first powder into a compacted powder product having a non-planar surface, wherein the compacting includes dynamic magnetic compaction or combustion driven compaction; and increasing the magnetic coercivity of at least one of the first powder or compact powder product.

    Abstract translation: 许多变型可以包括提供包含铁的第一粉末的方法; 将第一粉末压实成具有非平面表面的压实粉末产品，其中压实包括动态磁性压实或燃烧驱动的压实; 以及增加所述第一粉末或致密粉末产品中的至少一种的磁矫顽力。

    NEAR NET SHAPE MANUFACTURING OF MAGNETS WITH PHOTOSENSITIVE SLURRY
    15.
    发明申请
    NEAR NET SHAPE MANUFACTURING OF MAGNETS WITH PHOTOSENSITIVE SLURRY 审中-公开

    公开(公告)号：US20190333696A1

    公开(公告)日：2019-10-31

    申请号：US15964719

    申请日：2018-04-27

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yucong Wang

    IPC: H01F41/02 ,  B22F7/00 ,  B22F7/02 ,  B22F3/15 ,  B22F1/00

    Abstract: A magnet and a method of forming the magnet are provided. The method includes forming a slurry comprising magnetic powder material and photopolymerizing material and creating raw layers from the slurry. Each layer is cured by electromagnetic radiation prior to forming another layer on the most recent cured layer. The layers are attached together. The method may also include applying a magnetic field to each raw layer while curing the layer, to orient the magnetic powder material in a desired direction.

    QUICK ANALYSIS OF RESIDUAL STRESS AND DISTORTION IN CAST ALUMINUM COMPONENTS
    19.
    发明申请
    QUICK ANALYSIS OF RESIDUAL STRESS AND DISTORTION IN CAST ALUMINUM COMPONENTS 有权
    残余应力的快速分析和铝组件的失效

    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。

    Near Net Shape Manufacturing Of Rare Earth Permanent Magnets
    20.
    发明申请
    Near Net Shape Manufacturing Of Rare Earth Permanent Magnets 有权
    稀土永磁体近净形制造

    公开(公告)号：US20150251248A1

    公开(公告)日：2015-09-10

    申请号：US13628490

    申请日：2012-09-27

    Applicant: GM Global Technology Operations LLC

    Inventor： Edward P. Becker ,  Yucong Wang

    IPC: B22F3/08 ,  H01F41/02 ,  H01F1/057

    CPC classification number: B22F3/08 ,  B22F2998/00 ,  C22C33/02 ,  C22C38/001 ,  C22C38/005 ,  C22C2202/00 ,  H01F1/0577 ,  H01F41/0266 ,  H01F41/0273 ,  H01F41/0293 ,  B22F1/0059 ,  B22F3/02 ,  B22F3/10

    Abstract: A method of near net shaping a rare earth permanent magnet and a permanent magnet. The method includes introducing a magnetic material powder into a die, closing the die and shock compacting the powder in the die and sintering the compacted magnet powder to form the rare earth permanent magnet part. In one form, the magnetic material being subjected to compaction is a mixture made up of two or more different magnetic material powder precursors. Additional materials may be added to the mixture. One such additional material may be a lubricant to reduce the likelihood of cracking, while another may be a coating to provide oxidation protection of the mixture. Evacuation or inert environments may also be used either prior to or in conjunction with the sintering or related high-temperature part of the process.

    Abstract translation: 一种近净成形稀土永磁体和永磁体的方法。 该方法包括将磁性材料粉末引入模具中，封闭模具并冲击压实模具中的粉末并烧结压实的磁体粉末以形成稀土永磁体部件。 在一种形式中，经受压实的磁性材料是由两种或更多种不同的磁性材料粉末前体组成的混合物。 可以向混合物中加入另外的材料。 一种这样的附加材料可以是减少开裂可能性的润滑剂，而另一种可以是提供混合物的氧化保护的涂层。 疏散或惰性环境也可以在烧结或过程的相关高温部分之前或结合使用。

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