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公开(公告)号：US20210199053A1
公开(公告)日：2021-07-01
申请号：US16727004
申请日：2019-12-26
发明人： Hrishikesh Keshavan , Curtis Alan Johnson , Hongqiang Chen , Bernard Patrick Bewlay , Byron Andrew Pritchard, JR. , Mehmet M. Dede
IPC分类号： F02C7/24
摘要： A coated component for a gas turbine engine is provided. The coated component includes a substrate having a surface and a ceramic coating. The ceramic coating includes one or more linear slots and one or more non-linear slots. The one or more non-linear slots intersect the one or more linear slots. The plurality of linear slots and the plurality of non-linear slots form segments of ceramic coating material.
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公开(公告)号：US20180371923A1
公开(公告)日：2018-12-27
申请号：US15634196
申请日：2017-06-27
发明人： Curtis Alan Johnson , Hrishikesh Keshavan , Shankar Sivaramakrishnan , Byron Andrew Pritchard, JR. , Hongqiang Chen , Bernard Patrick Bewlay
IPC分类号： F01D5/28 , C04B35/48 , F01D9/02 , F01D25/08 , F23R3/00 , F01D5/18 , F01D25/12 , B23K26/364 , C04B35/505
摘要： Methods for preparing slotted ceramic coatings and the resulting components comprising the same are provided. The methods and products include the incorporation of a coating system comprising a ceramic coating with cooling holes disposed throughout the ceramic coating and slots defined in the thermal barrier coating and disposed in relation to the cooling holes. The resulting ceramic coating has improved resistance to CMAS infiltration and improved compliance resulting in an increased life of the coated component.
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公开(公告)号：US11898497B2
公开(公告)日：2024-02-13
申请号：US16727004
申请日：2019-12-26
发明人： Hrishikesh Keshavan , Curtis Alan Johnson , Hongqiang Chen , Bernard Patrick Bewlay , Byron Andrew Pritchard, Jr. , Mehmet M. Dede
IPC分类号： F02C7/24
CPC分类号： F02C7/24
摘要： A coated component for a gas turbine engine is provided. The coated component includes a substrate having a surface and a ceramic coating. The ceramic coating includes one or more linear slots and one or more non-linear slots. The one or more non-linear slots intersect the one or more linear slots. The plurality of linear slots and the plurality of non-linear slots form segments of ceramic coating material.
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公开(公告)号：US10907502B2
公开(公告)日：2021-02-02
申请号：US16133622
申请日：2018-09-17
摘要： A method of fabricating and repairing a gas turbine component having a plurality of cooling holes defined therein is provided. The method includes determining a parameter of a first cooling hole defined in the gas turbine component, and generating a tool path for forming a protective cap around the first cooling hole. The tool path is based at least partially on the parameter of the first cooling hole. The method also includes directing a robotic device to follow the tool path, and discharging successive layers of ceramic slurry towards the gas turbine component as the tool path is followed such that the protective cap is formed around the first cooling hole.
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公开(公告)号：US10100668B2
公开(公告)日：2018-10-16
申请号：US15052039
申请日：2016-02-24
摘要： A method of fabricating and repairing a gas turbine component having a plurality of cooling holes defined therein is provided. The method includes determining a parameter of a first cooling hole defined in the gas turbine component, and generating a tool path for forming a protective cap around the first cooling hole. The tool path is based at least partially on the parameter of the first cooling hole. The method also includes directing a robotic device to follow the tool path, and discharging successive layers of ceramic slurry towards the gas turbine component as the tool path is followed such that the protective cap is formed around the first cooling hole.
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公开(公告)号：US20170173731A1
公开(公告)日：2017-06-22
申请号：US14974047
申请日：2015-12-18
发明人： Hongqiang Chen , Steven Robert Hayashi , Martin Kin-Fei Lee , Nitin Garg , Nolan Leander Cousineau , Derrick Wayne Knotts
IPC分类号： B23K26/0622 , B23K26/402 , B23K26/36
CPC分类号： B23K26/0624 , B23K26/0626 , B23K26/36 , B23K26/38 , B23K26/402 , B23K2103/16 , B23K2103/52
摘要： A method for shaping a ceramic matrix composite (CMC) sheet having a first surface and a second surface is presented. The method includes receiving an input signal representative of a predetermined shape and a type of the CMC sheet. Further, the method includes selecting a laser beam based on the received input signal. Also, the method includes projecting the selected laser beam on the CMC sheet to shape the CMC sheet into the predetermined shape.
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公开(公告)号：US11788421B2
公开(公告)日：2023-10-17
申请号：US15634196
申请日：2017-06-27
发明人： Curtis Alan Johnson , Hrishikesh Keshavan , Shankar Sivaramakrishnan , Byron Andrew Pritchard, Jr. , Hongqiang Chen , Bernard Patrick Bewlay
IPC分类号： F01D5/28 , C04B35/48 , F01D9/02 , F01D25/08 , F23R3/00 , F01D5/18 , F01D25/12 , B23K26/364 , C04B35/505 , F23M5/02
CPC分类号： F01D5/288 , B23K26/364 , C04B35/48 , C04B35/505 , F01D5/18 , F01D5/186 , F01D9/02 , F01D25/08 , F01D25/12 , F23M5/02 , F23R3/002 , F23R3/007 , C04B2235/3244 , C04B2235/3246 , F05D2220/32 , F05D2230/13 , F05D2230/90 , F05D2240/11 , F05D2250/294 , F05D2260/202 , F05D2260/607 , F05D2300/6033 , F23M2900/05003 , F23M2900/05004 , F23R2900/00018 , F23R2900/03042
摘要： Methods for preparing slotted ceramic coatings and the resulting components comprising the same are provided. The methods and products include the incorporation of a coating system comprising a ceramic coating with cooling holes disposed throughout the ceramic coating and slots defined in the thermal barrier coating and disposed in relation to the cooling holes. The resulting ceramic coating has improved resistance to CMAS infiltration and improved compliance resulting in an increased life of the coated component.
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公开(公告)号：US10357848B2
公开(公告)日：2019-07-23
申请号：US14599612
申请日：2015-01-19
发明人： Hongqiang Chen , Steven Robert Hayashi , Xi Zhang
摘要： A laser machining method includes directing, from an F-theta lens having a long focal length of greater than about 250 millimeters, a laser beam at a non-perpendicular beam tilt angle from an optical axis of the lens having a top-hat profile and a narrow beam divergence angle of between about 1 degree and about 3 degrees towards a workpiece on a stage movable in at least an X-direction and a Y-direction, engaging the directed laser beam with the workpiece disposed in the usable field of view, moving the workpiece and the directed laser beam relative to each other, and removing portions of the workpiece with the directed laser beam to define a machined surface.
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9.发明申请公开(公告)号：US20170247797A1
公开(公告)日：2017-08-31
申请号：US15055291
申请日：2016-02-26
IPC分类号： C23F4/00
CPC分类号： G01N21/718 , B23K26/032 , B23K26/362 , C23C28/321 , C23C28/3215 , C23C28/345 , C23C28/3455 , F01D5/005 , F05D2230/13 , F05D2260/83 , G01N2021/8427 , Y02T50/672 , Y02T50/6765
摘要： A system and method for performing laser induced breakdown spectroscopy during laser ablation of a coating, such as a TBC coating, deposited on a surface of a component, particularly to enable obtained spectrometry signals of the ablated coating to be used to monitor and control the laser ablation removal process in real-time. The system includes a laser energy source and a scan head interconnected with the laser energy source to receive a laser beam therefrom and then direct the laser beam onto the surface of the coated component. Collection optics collect radiation emitted from a laser-induced plasma generated by the laser beam at the surface of the coated component. The system is further equipped to spectrally analyze the radiation and generate a feedback signal for control and optimization of one or more operational parameters of the laser energy source in real-time.
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公开(公告)号：US20230415272A1
公开(公告)日：2023-12-28
申请号：US17851295
申请日：2022-06-28
IPC分类号： B23K26/364
CPC分类号： B23K26/364
摘要： A system for forming slots in a coating present on a component includes an electromagnetic radiation beam emitting device having a base, an arm coupled to the base, and a scan head coupled to the arm. The scan head is configured to emit an electromagnetic radiation beam, with at least one of the arm or the scan head being moveable to provide the scan head with motion about at least three axes relative to the component. The system also includes a computing system configured to control an operation of the arm to move a position of the electromagnetic radiation beam relative to a three-dimensional surface of the component such that material is ablated from a coating on the three-dimensional surface to form the slot pattern in the coating.
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