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    METHOD OF MANUFACTURE OF AIRFOIL CASTINGS USING AUTONOMOUS ADAPTIVE MACHINING
    2.
    发明申请
    METHOD OF MANUFACTURE OF AIRFOIL CASTINGS USING AUTONOMOUS ADAPTIVE MACHINING 审中-公开

    公开(公告)号：US20200230753A1

    公开(公告)日：2020-07-23

    申请号：US16252286

    申请日：2019-01-18

    Applicant: United Technologies Corporation

    Inventor： James Tilsley Auxier ,  Alan C. Barron ,  Wolfgang Balzer

    IPC: B23P15/02 ,  G05B19/19 ,  F01D5/18

    Abstract: A method of forming an airfoil includes casting the airfoil with an internal cooling circuit and an exterior surface with a positive feature. The exterior surface of the airfoil is scanned with a first probe. A size and a location of the positive feature are identified based on the scan of the exterior surface. A transformation matrix is created with a controller such that the transformation matrix includes toolpath transformation instructions. A transformed set of machine toolpath instructions is created by applying the transformation matrix using the controller to a first set of machine toolpath instructions to align the first set of machine toolpath instructions relative to the positive feature. A contour is then machined into the exterior surface of the airfoil based on the transformed set of machine toolpath instructions.

    Apparatus for creating a film cooled article for a gas turbine engine
    8.
    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 AERODYNAMICS
    9.
    发明申请
    AIRFOIL AERODYNAMICS 审中-公开

    公开(公告)号：US20180099362A1

    公开(公告)日：2018-04-12

    申请号：US15289801

    申请日：2016-10-10

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Eric A. Hudson ,  Alan C. Barron ,  Edwin Otero

    IPC: B23P15/02 ,  F01D5/14

    CPC classification number: B23P15/02 ,  F01D5/005 ,  F01D5/141 ,  F05D2220/32 ,  F05D2230/10 ,  Y02T50/672 ,  Y02T50/673 ,  Y10T29/49337

    Abstract: A method of manufacturing an airfoil. The method includes fixing the airfoil in a workpiece space, detecting a position of the airfoil in the workpiece space using a force-sensing element, and removing material from the airfoil to reduce a dimension of the airfoil. In various embodiments, detecting the position of the airfoil includes moving the force-sensing element across a surface of the airfoil. For example, the surface of the airfoil may be a first surface, wherein removing material from the airfoil to reduce the dimension of the airfoil comprises removing material from a second surface of the airfoil opposite the first surface. Removing material from the second surface of the airfoil may be performed without moving the force-sensing element across the second surface of the airfoil.

    Ceramic Coating Polishing Method
    10.
    发明申请
    Ceramic Coating Polishing Method 审中-公开
    陶瓷涂层抛光方法

    公开(公告)号：US20170014968A1

    公开(公告)日：2017-01-19

    申请号：US14623351

    申请日：2015-02-16

    Applicant: United Technologies Corporation

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

    IPC: B24B29/00 ,  F01D9/02

    CPC classification number: B24B29/005 ,  B24B19/14 ,  B24B27/0038 ,  B24B49/16 ,  C23C4/18 ,  F01D5/288 ,  F01D9/02 ,  F05D2220/323 ,  F05D2230/90 ,  F05D2250/621 ,  F05D2300/20

    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 utilized in similar 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.

    Abstract translation: 陶瓷涂覆的燃气涡轮发动机部件的外表面的抛光方法包括将旋转的金刚石刷施加到外表面。 刷子被配置成在表面上实现150微升RA或更小的均匀整理。 刷子包含金刚石浸渍的刷毛，并且固定到机器人手臂的旋转头部。 力传感控制器限制针对组件的刷子力。 所公开的部件是设计用于高温，高压燃烧气体的方向控制的热段涡轮叶片，但是该方法可以应用于在类似的航空航天应用中使用的其它部件。 抛光的涂层提供了改进的热障，用于在具有高达2000摄氏度的温度的环境中保持部件的结构完整性。 该方法将陶瓷材料的磨料去除仅限于0.0005至0.00075英寸，并节省了与以往做法相比的时间和费用。

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