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    Ceramic coating polishing method
    2.
    发明授权
    Ceramic coating polishing method 有权

    公开(公告)号：US10252395B2

    公开(公告)日：2019-04-09

    申请号：US14623351

    申请日：2015-02-16

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Bartolomeo Palmieri ,  John P. Rizzo, Jr. ,  Kaitlin M. Tomeo ,  Alan C. Barron ,  Christopher J. Millea ,  Henry H. Thayer

    IPC: B24B29/00 ,  B24B19/14 ,  B24B27/00 ,  B24B49/16 ,  C23C4/18 ,  F01D5/28 ,  F01D9/02

    Abstract: A method of polishing an outer surface of a ceramic coated gas turbine engine component includes applying a rotating diamond brush to the outer surface. The brush is configured to achieve a uniform finish of 150 microinches Ra or less over the surface. The brush contains diamond impregnated bristles, and is affixed to a rotary head of a robotic arm. A force sensing controller limits brush forces against the component. The component disclosed is a hot section turbine vane designed for directional control of high temperature, high-pressure combustion gases, but the method may be applied to other components contained within such aerospace applications. The polished coating provides an improved thermal barrier for maintaining structural integrity of the component in environments having temperatures ranging up to 2,000 degrees Celsius. The method limits abrasive removal of ceramic material to only 0.0005 to 0.00075 inch, and saves time and expense over past practices.

    Machining tool including a pivoting machining arm
    5.
    发明授权
    Machining tool including a pivoting machining arm 有权

    公开(公告)号：US09757837B2

    公开(公告)日：2017-09-12

    申请号：US14793498

    申请日：2015-07-07

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： John P. Rizzo, Jr.

    IPC: B24B21/00 ,  B24B23/06 ,  B24B21/20 ,  B24B41/00

    CPC classification number: B24B21/006 ,  B24B21/00 ,  B24B21/20 ,  B24B23/06 ,  B24B41/002

    Abstract: The present disclosure relates generally to a machining tool and method for using the machining tool. The machining tool includes a machining arm including a first arm section, a second arm section, a proximate end, a distal end, and a machining arm longitudinal axis, a belt disposed around the machining arm; and a first motor operably coupled to the machining arm, wherein at least a portion of the machining arm is configured to pivot such that an angle is formed between the distal end and the machining arm longitudinal axis. The method includes the steps of placing the pivotable machining arm in a first orientation, inserting the pivotable machining arm in the desired location, determining whether the belt is in a desired position relative to the raised surface, operating the motor to rotate the belt around the pivotable machining arm, and placing the belt in contact with the raised surface.

    System and methods for rough grinding
    6.
    发明授权
    System and methods for rough grinding 有权
    粗磨的系统和方法

    公开(公告)号：US09498865B2

    公开(公告)日：2016-11-22

    申请号：US14577632

    申请日：2014-12-19

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： John P. Rizzo, Jr. ,  Micah Beckman

    IPC: B24B53/04 ,  B24B19/14 ,  B24B53/047 ,  B24B5/14

    CPC classification number: B24B19/14 ,  B24B5/14 ,  B24B53/04 ,  B24B53/047

    Abstract: A system and methods are provided for grinding a workpiece. In one embodiment, a method includes controlling rotation of a workpiece, wherein the workpiece is rotated relative to a first axis, and controlling grinding of the workpiece by a first grinding tool to shape the workpiece, wherein the first grinding tool is rotated relative to a second axis. The method may also include controlling grinding of the workpiece by the grinding tool and rotation of the workpiece to provide grinding of the workpiece with a generally constant surface footage.

    Abstract translation: 提供了一种用于研磨工件的系统和方法。 在一个实施例中，一种方法包括控制工件的旋转，其中工件相对于第一轴线旋转，并且通过第一研磨工具控制工件的磨削以使工件成形，其中第一研磨工具相对于 第二轴。 该方法还可以包括通过研磨工具控制工件的磨削和工件的旋转，以提供具有大致恒定的表面镜面的工件的研磨。

    Apparatus for creating a film cooled article for a gas turbine engine
    7.
    发明授权
    Apparatus for creating a film cooled article for a gas turbine engine 有权

    公开(公告)号：US10370977B2

    公开(公告)日：2019-08-06

    申请号：US16147994

    申请日：2018-10-01

    Applicant: United Technologies Corporation

    Inventor： John P. Rizzo, Jr. ,  Alan C. Barron

    IPC: F01D5/18 ,  B23Q15/013 ,  B23P15/02 ,  G05B15/02

    Abstract: A finishing apparatus including a central control machine having a computerized controller, at least one articulating device controlled by the central control machine and operable to move the machining tool, and at least one of a touch sensor apparatus and a visual sensor apparatus mounted to said machining tool and communicatively coupled to the computerized controller. The computerized controller configured to cause the finishing apparatus to position a machining element in contact with an exterior surface of a film cooled article, move the machining element along the exterior surface while maintaining contact between the machining element and the surface, identify an actual position of a film opening based on sensory feedback while maintaining contact between the machining element and the surface, and remove material from the exterior surface at the film opening using said machining element.

    Airfoil edge form transfer grinding tool
    8.
    发明授权
    Airfoil edge form transfer grinding tool 有权
    翼型边缘转移研磨工具

    公开(公告)号：US09421661B2

    公开(公告)日：2016-08-23

    申请号：US14221574

    申请日：2014-03-21

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： John P. Rizzo, Jr.

    IPC: B24B19/14 ,  B23P6/00 ,  B24B19/00 ,  F01D5/00

    CPC classification number: B24B19/14 ,  B23P6/002 ,  B24B19/009 ,  F01D5/005

    Abstract: A grinding tool is provided that includes an axial grinding wheel having a circumferential cutting slot formed therein, the cutting slot having a cross-sectional profile that includes a floor having a first radius of curvature, a first side wall rising upward from the floor and having a second radius of curvature, a second side wall rising upward from the floor opposite the first side wall and having a third radius of curvature. At least one radius of curvature corresponds to a surface, such as a leading edge of a gas turbine engine airfoil.

    Abstract translation: 提供了一种研磨工具，其包括具有形成在其中的周向切割槽的轴向砂轮，所述切割槽具有横截面轮廓，该横截面轮廓包括具有第一曲率半径的地板，从地板向上升起的第一侧壁， 第二曲率半径，第二侧壁从与第一侧壁相对的地板向上升起并具有第三曲率半径。 至少一个曲率半径对应于诸如燃气涡轮发动机翼型的前缘的表面。

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