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    LASER CLEANING PRIOR TO METALLIC COATING OF A SUBSTRATE
    2.
    发明申请
    LASER CLEANING PRIOR TO METALLIC COATING OF A SUBSTRATE 审中-公开

    公开(公告)号：US20200318227A1

    公开(公告)日：2020-10-08

    申请号：US16375147

    申请日：2019-04-04

    Applicant: United Technologies Corporation

    Inventor： Henry H. Thayer ,  Bartolomeo Palmieri ,  Dmitri Novikov

    IPC: C23C4/02 ,  C23C4/134 ,  C23C4/073 ,  B08B7/00

    Abstract: A method for treating a substrate prior to metallic coating includes the steps of providing a substrate having a surface to be coated and at least one contaminant selected from as-delivered organics and post-burn out oxides on the surface; treating the surface with a laser to remove the at least one contaminant to produce a cleaned surface on the substrate; and applying a metallic coating to the cleaned surface. Grit blasting can be avoided, and reverse arc transfer cleaning is avoided or minimized, resulting in time savings and less stress on the substrate.

    Ceramic Coating Polishing Method
    4.
    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。

    Non-Stick Masking Fixtures and Methods of Preparing Same
    6.
    发明申请
    Non-Stick Masking Fixtures and Methods of Preparing Same 有权
    不粘屏蔽装置及其制备方法

    公开(公告)号：US20130101737A1

    公开(公告)日：2013-04-25

    申请号：US13709127

    申请日：2012-12-10

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Ryan Richard Bernaski ,  Bartolomeo Palmieri

    IPC: B05D3/12 ,  B24B1/00

    CPC classification number: B05D3/12 ,  B24B1/00 ,  C23C4/01 ,  C23C8/04 ,  C23C10/04 ,  C23C14/042 ,  C23C16/042

    Abstract: Non-stick fixtures for selectively masking portions of a workpiece during application of a workpiece coating are described herein. These fixtures have predetermined surfaces thereon having an average surface roughness of about 25 Ra or less and a Rockwell hardness of about 65 Rc or more. The controlled average surface roughness ensures that these fixtures are non-stick with respect to the workpiece coating being applied to the workpieces disposed therein. The controlled Rockwell hardness ensures that the desired average surface roughness can be maintained throughout repeated use of the fixture in harsh coating environments. These fixtures reduce the workpiece coating bridging that occurs between the fixture and the workpiece, and also reduce the amount of overspray that occurs on the workpiece, thereby minimizing the amount of handwork and/or rework that is necessary after the workpiece is coated. This improves process cycle times and yields significantly.

    Abstract translation: 本文描述了在施加工件涂层期间用于选择性地掩蔽工件的部分的不粘固固定件。 这些固定件具有其上具有约25Ra或更小的平均表面粗糙度和约65Rc或更大的洛氏硬度的预定表面。 受控的平均表面粗糙度确保这些夹具相对于施加到设置在其中的工件的工件涂层不粘。 受控的洛氏硬度可确保在苛刻的涂层环境中重复使用固定装置时可以保持所需的平均表面粗糙度。 这些夹具减少了在夹具和工件之间发生的工件涂层桥接，并且还减少了在工件上发生的过度喷涂的量，从而最小化了在工件被涂覆之后必需的手工和/或返工量。 这样可以显着提高工艺循环时间和产量。

    Ceramic coating polishing method
    8.
    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.

    Non-stick masking fixtures and methods of preparing same
    9.
    发明授权
    Non-stick masking fixtures and methods of preparing same 有权
    不粘屏蔽夹具及其制备方法

    公开(公告)号：US08603582B2

    公开(公告)日：2013-12-10

    申请号：US13709127

    申请日：2012-12-10

    Applicant: United Technologies Corporation

    Inventor： Ryan Richard Bernaski ,  Bartolomeo Palmieri

    IPC: C23C16/02 ,  C23C16/34

    CPC classification number: B05D3/12 ,  B24B1/00 ,  C23C4/01 ,  C23C8/04 ,  C23C10/04 ,  C23C14/042 ,  C23C16/042

    Abstract: Non-stick fixtures for selectively masking portions of a workpiece during application of a workpiece coating are described herein. These fixtures have predetermined surfaces thereon having an average surface roughness of about 25 Ra or less and a Rockwell hardness of about 65 Rc or more. The controlled average surface roughness ensures that these fixtures are non-stick with respect to the workpiece coating being applied to the workpieces disposed therein. The controlled Rockwell hardness ensures that the desired average surface roughness can be maintained throughout repeated use of the fixture in harsh coating environments. These fixtures reduce the workpiece coating bridging that occurs between the fixture and the workpiece, and also reduce the amount of overspray that occurs on the workpiece, thereby minimizing the amount of handwork and/or rework that is necessary after the workpiece is coated. This improves process cycle times and yields significantly.

    Abstract translation: 本文描述了在施加工件涂层期间用于选择性地掩蔽工件的部分的不粘固固定件。 这些固定件具有其上具有约25Ra或更小的平均表面粗糙度和约65Rc或更大的洛氏硬度的预定表面。 受控的平均表面粗糙度确保这些夹具相对于施加到设置在其中的工件的工件涂层不粘。 受控的洛氏硬度可确保在苛刻的涂层环境中重复使用固定装置时可以保持所需的平均表面粗糙度。 这些夹具减少了在夹具和工件之间发生的工件涂层桥接，并且还减少了在工件上发生的过度喷涂的量，从而最小化了在工件被涂覆之后必需的手工和/或返工量。 这样可以显着提高工艺循环时间和产量。

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