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    ELECTRODE ASSEMBLY AND METHOD OF MAKING THE SAME
    31.
    发明申请
    ELECTRODE ASSEMBLY AND METHOD OF MAKING THE SAME 有权

    公开(公告)号：US20210218006A1

    公开(公告)日：2021-07-15

    申请号：US16740018

    申请日：2020-01-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jing Gao ,  Brian J. Koch ,  Zhe Li ,  Yucong Wang

    IPC: H01M2/26

    Abstract: Disclosed is an electrode assembly, comprising: an electrode; and an electrode tab, wherein the electrode tab is attached to the electrode, wherein the electrode tab comprises: a center portion, wherein the center portion comprises an attachment mechanism, wherein the electrode tab is attached to the electrode via the attachment mechanism; a protrusion portion, wherein the protrusion portion extends from the center portion and protrudes beyond a perimeter of the electrode; and a rounded portion, wherein the rounded portion extends from the center portion in a direction opposite the protrusion portion.

    NEAR NET SHAPE MANUFACTURING OF MAGNETS
    33.
    发明申请
    NEAR NET SHAPE MANUFACTURING OF MAGNETS 审中-公开

    公开(公告)号：US20190006098A1

    公开(公告)日：2019-01-03

    申请号：US15637028

    申请日：2017-06-29

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Yucong Wang

    IPC: H01F41/02 ,  H01F1/053 ,  H01F1/057

    Abstract: A magnet and a method of near net shape forming the magnet are provided. The method includes printing a plurality of layers of magnetic powder material, layer by layer, to form the magnet having a three-dimensional shape and sintering the plurality of layers of magnetic powder material to harden the magnet. The method may also include applying a magnetic field to the magnetic powder material while printing the plurality of layers of magnetic powder material to orient the magnetic powder material in a desired direction.

    Surface texture providing improved thermal spray adhesion
    34.
    发明授权
    Surface texture providing improved thermal spray adhesion 有权

    公开(公告)号：US10106878B2

    公开(公告)日：2018-10-23

    申请号：US15184699

    申请日：2016-06-16

    Applicant: GM Global Technology Operations LLC

    Inventor： Zhe Li ,  Martin S. Kramer ,  Yucong Wang ,  Jianghuai Yang

    IPC: C23C4/02 ,  F02F1/00

    Abstract: An improved substrate surface texture i.e., roughness, significantly improves the adhesion of thermal spray coatings. The surface texture is defined by two metrology parameters and the invention comprehends a range of average roughness (Sa) between 9 and 15 μm and developed interfacial area ratio (Sdr) of greater than 100%. This surface texture is achieved by methods such as water jet erosion, mechanical roughening, laser texturing, chemical etching and plasma etching. The surface texture is especially beneficial for walls of cylinders of internal combustion engines, hydraulic cylinders and similar components to which a thermal spray coating is adhered and which are exposed to sliding or frictional wear.

    Method of making Nd—Fe—B magnetic materials with reduced heavy rare earth metals
    35.
    发明授权
    Method of making Nd—Fe—B magnetic materials with reduced heavy rare earth metals 有权

    公开(公告)号：US10022796B2

    公开(公告)日：2018-07-17

    申请号：US14471815

    申请日：2014-08-28

    Applicant: GM Global Technology Operations LLC

    Inventor： Yucong Wang

    IPC: H01F41/02 ,  B22F3/15 ,  H01F1/057 ,  B22F1/02 ,  B22F3/105 ,  B22F3/24

    Abstract: A method of making a magnetic material includes a step of providing a first material in the form of a core powder containing Nd, Fe and B. The first material is combined with the second material to form a powder combination. The second material includes a component selected from the group consisting of Dy, Tb, and combinations thereof. The powder combination is encapsulated to form an encapsulated powder combination. A magnetic field is applied to the powder combination during encapsulation and thereafter to align the magnetic dipoles therein. The encapsulated powder combination is isostatically pressed with heat to form the magnetic material.

    SURFACE TEXTURE PROVIDING IMPROVED THERMAL SPRAY ADHESION
    36.
    发明申请
    SURFACE TEXTURE PROVIDING IMPROVED THERMAL SPRAY ADHESION 审中-公开

    公开(公告)号：US20170362691A1

    公开(公告)日：2017-12-21

    申请号：US15184699

    申请日：2016-06-16

    Applicant: GM Global Technology Operations LLC

    Inventor： Zhe Li ,  Martin S. Kramer ,  Yucong Wang ,  Jianghuai Yang

    IPC: C23C4/02 ,  F02F1/00

    CPC classification number: C23C4/02 ,  F02F1/004

    Abstract: An improved substrate surface texture i.e., roughness, significantly improves the adhesion of thermal spray coatings. The surface texture is defined by two metrology parameters and the invention comprehends a range of average roughness (Sa) between 9 and 15 μm and developed interfacial area ratio (Sdr) of greater than 100%. This surface texture is achieved by methods such as water jet erosion, mechanical roughening, laser texturing, chemical etching and plasma etching. The surface texture is especially beneficial for walls of cylinders of internal combustion engines, hydraulic cylinders and similar components to which a thermal spray coating is adhered and which are exposed to sliding or frictional wear.

    PHOSPHATING OR ANODIZING FOR IMPROVED BONDING OF THERMAL SPRAY COATING ON ENGINE CYLINDER BORES
    39.
    发明申请
    PHOSPHATING OR ANODIZING FOR IMPROVED BONDING OF THERMAL SPRAY COATING ON ENGINE CYLINDER BORES 审中-公开
    用于改善发动机缸体上喷涂热粘合剂的喷涂或阳极氧化

    公开(公告)号：US20160376690A1

    公开(公告)日：2016-12-29

    申请号：US14753152

    申请日：2015-06-29

    Applicant: GM Global Technology Operations LLC

    Inventor： Yucong Wang ,  Dale A. Gerard

    IPC: C23C4/02 ,  F02F1/00 ,  F02F7/00 ,  C23C4/06

    CPC classification number: C23C4/02 ,  C23C4/11 ,  F02F1/18

    Abstract: An engine cylinder bore with an anodized or phosphated bondcoat and a method of coating the surface of an engine cylinder bore with an anodized or phosphated bondcoat prior to depositing a thermally sprayed protective coating. Cleaning or related pretreatment operations may also be used. In one preferred form, the cylinder bore is made from an aluminum-based alloy or a magnesium-based alloy, while the bondcoat forms a porous interface between the cylinder bore and the outermost protective coating. Additives may be placed into the anodizing or phosphating solution to promote adhesion and corrosion resistance.

    Abstract translation: 具有阳极氧化或磷酸化键合涂层的发动机气缸孔，以及在沉积热喷涂保护涂层之前用阳极氧化或磷酸化粘合剂涂层涂覆发动机气缸孔表面的方法。 也可以使用清洁或相关的预处理操作。 在一个优选形式中，气缸孔由铝基合金或镁基合金制成，而粘结涂层在气缸孔和最外面的保护涂层之间形成多孔界面。 可以将添加剂放入阳极氧化或磷酸盐溶液中以促进粘附和耐腐蚀性。

    Method of making Nd—Fe—B sintered magnets with reduced dysprosium or terbium
    40.
    发明授权
    Method of making Nd—Fe—B sintered magnets with reduced dysprosium or terbium 有权
    制造具有减少的镝或铽的Nd-Fe-B烧结磁体的方法

    公开(公告)号：US09468972B2

    公开(公告)日：2016-10-18

    申请号：US13628149

    申请日：2012-09-27

    Applicant: GM Global Technology Operations LLC

    Inventor： Yucong Wang

    IPC: B22F1/02 ,  C22C33/02 ,  H01F41/02

    CPC classification number: B22F1/025 ,  C22C33/0207 ,  C22C33/0278 ,  H01F41/0293

    Abstract: A method of making a permanent magnet and a permanent magnet. The method includes providing combining a core material and a surface material so that the surface concentration of dysprosium, terbium, or both in the surface material is high while simultaneously keeping the bulk concentration of dysprosium, terbium, or both low. From this, the magnet has a non-uniform distribution of dysprosium, terbium or both. Varying approaches to preparing the combined core and surface materials may be used to ensure that the surface powder effectively wraps around the core powder as a way to achieve the high surface concentration and low bulk concentration. In one form, the core material may be made from a neodymium-iron-boron permanent magnet precursor material.

    Abstract translation: 一种制造永磁体和永磁体的方法。 该方法包括提供芯材和表面材料的组合，使得表面材料中的镝，铽或二者的表面浓度高，同时保持镝，铽或二者的二者的体积浓度低。 由此，磁体具有镝，铽或两者的不均匀分布。 可以使用制备组合的芯和表面材料的不同方法来确保表面粉末有效地包裹在芯粉末周围，作为实现高表面浓度和低体积浓度的一种方式。 在一种形式中，芯材料可以由钕 - 铁 - 硼永磁体前体材料制成。

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