公开(公告)号：US20180056419A1

公开(公告)日：2018-03-01

申请号：US15244021

申请日：2016-08-23

申请人： General Electric Company

发明人： Yuefeng Luo ,  Allan R. Bridges ,  Christopher Alan Panczyk ,  Jason Crumb ,  Christopher Mark Andrew Philp

IPC分类号： B23H1/04 ,  B23H1/10 ,  B23H9/00 ,  B23H9/10 ,  B28B11/08

CPC分类号： B23H1/04 ,  B23H9/006 ,  B23H9/10 ,  C04B35/80

摘要： Electrodes for and methods of electrical discharge machining are provided. For example, a method for forming a feature in a ceramic matrix composite (CMC) component comprises repeatedly advancing an electrode into and retracting the electrode from the CMC component until a desired depth is reached, where the electrode has a head end, a tip end, and a shaft extending from the head end to the tip end. The shaft has a first side and a second side each recessed inward such that the head end and the tip end are wider than the shaft. A method for forming a feature in a CMC component also may include feeding a dielectric fluid into the feature utilizing the recessed sides. In some embodiments, electrodes may include a shaft extending from a head end to a tip end and a central plane, where the shaft is recessed widthwise toward the central plane.

公开(公告)号：US20190091783A1

公开(公告)日：2019-03-28

申请号：US16200875

申请日：2018-11-27

申请人： General Electric Company

发明人： Yuefeng Luo ,  Allan R. Bridges ,  Christopher Alan Panczyk ,  Jason Crumb ,  Christopher Mark Andrew Philp

IPC分类号： B23H1/04 ,  C04B35/80 ,  B23H9/00 ,  B23H9/10

摘要： Electrodes for and methods of electrical discharge machining are provided. For example, a method for forming a feature in a ceramic matrix composite (CMC) component comprises repeatedly advancing an electrode into and retracting the electrode from the CMC component until a desired depth is reached, where the electrode has a head end, a tip end, and a shaft extending from the head end to the tip end. The shaft has a first side and a second side each recessed inward such that the head end and the tip end are wider than the shaft. A method for forming a feature in a CMC component also may include feeding a dielectric fluid into the feature utilizing the recessed sides. In some embodiments, electrodes may include a shaft extending from a head end to a tip end and a central plane, where the shaft is recessed widthwise toward the central plane.

公开(公告)号：US11000908B2

公开(公告)日：2021-05-11

申请号：US16200875

申请日：2018-11-27

申请人： General Electric Company

发明人： Yuefeng Luo ,  Allan R. Bridges ,  Christopher Alan Panczyk ,  Jason Crumb ,  Christopher Mark Andrew Philp

IPC分类号： B23H1/04 ,  B23H9/00 ,  B23H9/10 ,  C04B35/80

摘要： Electrodes for and methods of electrical discharge machining are provided. For example, a method for forming a feature in a ceramic matrix composite (CMC) component comprises repeatedly advancing an electrode into and retracting the electrode from the CMC component until a desired depth is reached, where the electrode has a head end, a tip end, and a shaft extending from the head end to the tip end. The shaft has a first side and a second side each recessed inward such that the head end and the tip end are wider than the shaft. A method for forming a feature in a CMC component also may include feeding a dielectric fluid into the feature utilizing the recessed sides. In some embodiments, electrodes may include a shaft extending from a head end to a tip end and a central plane, where the shaft is recessed widthwise toward the central plane.

公开(公告)号：US10166617B2

公开(公告)日：2019-01-01

申请号：US15244021

申请日：2016-08-23

申请人： General Electric Company

发明人： Yuefeng Luo ,  Allan R. Bridges ,  Christopher Alan Panczyk ,  Jason Crumb ,  Christopher Mark Andrew Philp

IPC分类号： C23C16/52 ,  B23H1/04 ,  B23H9/00 ,  B23H9/10 ,  C04B35/80

摘要： Electrodes for and methods of electrical discharge machining are provided. For example, a method for forming a feature in a ceramic matrix composite (CMC) component comprises repeatedly advancing an electrode into and retracting the electrode from the CMC component until a desired depth is reached, where the electrode has a head end, a tip end, and a shaft extending from the head end to the tip end. The shaft has a first side and a second side each recessed inward such that the head end and the tip end are wider than the shaft. A method for forming a feature in a CMC component also may include feeding a dielectric fluid into the feature utilizing the recessed sides. In some embodiments, electrodes may include a shaft extending from a head end to a tip end and a central plane, where the shaft is recessed widthwise toward the central plane.