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    High fatigue strength components requiring areas of high hardness
    1.
    发明授权
    High fatigue strength components requiring areas of high hardness 有权

    公开(公告)号：US11584969B2

    公开(公告)日：2023-02-21

    申请号：US16815579

    申请日：2020-03-11

    申请人： METAL IMPROVEMENT COMPANY, LLC

    发明人： Lloyd A. Hackel

    IPC分类号： C21D7/04 ,  C22F1/18 ,  C23C8/22 ,  C23C8/26 ,  C21D1/09

    摘要： Metal components subject to wear or contact fatigue in a first area, and subject to bending, axial and/or torsional stress loading in a second area comprise a surface hardened, first surface layer in the first area, and a surface compressive-stress treated, second surface layer in the second area. The second surface layer has a material hardness different from, and typically lower than, the first surface layer, and induced residual compressive stress to improve fatigue strength. Example components described include a gear, a cog, a pinion, a rack, a splined shaft, a splined coupling, a torqueing tool and a nut driving tool. A hybrid manufacturing process is described, including area-selective surface hardening combined with a process to add compressive stress to fatigue failure prone areas.

    HIGH FATIGUE STRENGTH COMPONENTS REQUIRING AREAS OF HIGH HARDNESS
    2.
    发明申请
    HIGH FATIGUE STRENGTH COMPONENTS REQUIRING AREAS OF HIGH HARDNESS 审中-公开

    公开(公告)号：US20200208233A1

    公开(公告)日：2020-07-02

    申请号：US16815579

    申请日：2020-03-11

    申请人： METAL IMPROVEMENT COMPANY, LLC

    发明人： LLOYD A. HACKEL

    IPC分类号： C21D7/04 ,  C22F1/18 ,  C21D1/09 ,  C23C8/22 ,  C23C8/26

    摘要： Metal components subject to wear or contact fatigue in a first area, and subject to bending, axial and/or torsional stress loading in a second area comprise a surface hardened, first surface layer in the first area, and a surface compressive-stress treated, second surface layer in the second area. The second surface layer has a material hardness different from, and typically lower than, the first surface layer, and induced residual compressive stress to improve fatigue strength. Example components described include a gear, a cog, a pinion, a rack, a splined shaft, a splined coupling, a torqueing tool and a nut driving tool. A hybrid manufacturing process is described, including area-selective surface hardening combined with a process to add compressive stress to fatigue failure prone areas.

    HIGH FATIGUE STRENGTH COMPONENTS REQUIRING AREAS OF HIGH HARDNESS
    3.
    发明申请
    HIGH FATIGUE STRENGTH COMPONENTS REQUIRING AREAS OF HIGH HARDNESS 审中-公开
    需要高硬度区域的高疲劳强度组分

    公开(公告)号：US20160298203A1

    公开(公告)日：2016-10-13

    申请号：US15094173

    申请日：2016-04-08

    申请人： METAL IMPROVEMENT COMPANY, LLC

    发明人： LLOYD A. HACKEL

    IPC分类号： C21D1/18 ,  C23C8/26 ,  C23C8/80 ,  C21D9/32 ,  C21D9/30 ,  C21D1/10 ,  C21D9/28 ,  C21D7/06 ,  C21D7/08 ,  C21D10/00 ,  C21D1/42 ,  C23C8/22 ,  C21D9/00

    CPC分类号： C21D1/18 ,  C21D1/10 ,  C21D1/42 ,  C21D7/06 ,  C21D7/08 ,  C21D9/0068 ,  C21D9/28 ,  C21D9/30 ,  C21D9/32 ,  C21D10/005 ,  C23C8/04 ,  C23C8/22 ,  C23C8/26 ,  C23C8/32 ,  C23C8/80 ,  Y02P10/253

    摘要： Metal components subject to wear or contact fatigue in a first area, and subject to bending, axial and/or torsional stress loading in a second area comprise a surface hardened, first surface layer in the first area; and a surface compressive-stress treated, second surface layer in the second area. The second surface layer has a material hardness different from, and typically lower than the first surface layer, and induced residual compressive stress to improve fatigue strength. Example components described include a gear, a cog, a pinion, a rack, a splined shaft, a splined coupling, a torqueing tool and a nut driving tool. A hybrid manufacturing process is described, including area-selective surface hardening combined with a process to add compressive stress to fatigue failure prone areas.

    摘要翻译： 在第一区域中经受磨损或接触疲劳的金属部件，并且在第二区域中受到弯曲，轴向和/或扭转应力负载的金属部件包括第一区域中的表面硬化的第一表面层; 以及在第二区域中的表面压应力处理的第二表面层。 第二表层具有与第一表面层不同的材料硬度，并且通常低于第一表面层，并引起残余压应力以改善疲劳强度。 所描述的示例性部件包括齿轮，齿轮，小齿轮，齿条，花键轴，花键联接器，扭矩工具和螺母驱动工具。 描述了混合制造方法，包括面积选择性表面硬化以及将疲劳破坏倾向区域的压应力增加的过程。

    METHOD FOR MAKING HIGH LUBRICITY ABRADABLE MATERIAL AND ABRADABLE COATING
    6.
    发明申请
    METHOD FOR MAKING HIGH LUBRICITY ABRADABLE MATERIAL AND ABRADABLE COATING 有权

    公开(公告)号：US20220064775A1

    公开(公告)日：2022-03-03

    申请号：US17007820

    申请日：2020-08-31

    申请人： METAL IMPROVEMENT COMPANY, LLC

    发明人： Xinqing MA ,  Richard BAJAN ,  Peter F. RUGGIERO

    IPC分类号： C23C4/06 ,  F01D11/12 ,  C22C1/04 ,  C09D5/03 ,  C09D133/06 ,  B22F3/115

    摘要： An abradable powder composition is includes a metal component, a lubricant component, and a polymer component. A portion of the metal component is wrapped in the lubricant component to achieve high lubricity and abradability. The abradable powder composition can be used to form an abradable seal coating provided for use in a turbo machinery having a housing and a wheel having multiple blades. The housing houses the wheel which rotates therein. The seal coating is formed on the inner walls of housing adjacent where the wheel blades pass during their rotation. When the wheel is rotated such that the blades contact the seal coating, it is abraded to form a close fit gap. The abradable seal coating preferably does not produce significant wear of the blade tips or transfer abradable material significantly to the blade tips upon being abraded.