公开(公告)号：US20210096527A1

公开(公告)日：2021-04-01

申请号：US16585606

申请日：2019-09-27

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Visal ING ,  Michel FREDERICK ,  Ghislain HARDY

IPC分类号： G05B19/18

摘要： A tool for validating a wire-electric-discharge-machining (wEDM) operation to be performed using a wEDM machine comprises a body including an engagement feature shaped to removably hold a validation coupon to be machined in the wEDM operation, the validation coupon sized larger than a size of a cut-out to be made in a part using the wEDM machine. A method of manufacturing the tool and a wEDM machine assembly are also provided.

公开(公告)号：US20210094110A1

公开(公告)日：2021-04-01

申请号：US16585623

申请日：2019-09-27

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Visal ING ,  Ghislain HARDY ,  Joel JEAN

IPC分类号： B23H7/20 ,  B23H7/02 ,  B23H9/02

摘要： A method of wire-electric-discharge-machining (wEDM) a feature in a part includes using wEDM, cutting and detaching a slug from a portion of the part that is to be detached from the part to define the feature, and thereby defining a validation cut-out in the portion, and using wEDM, cutting and detaching the portion having the validation cut-out from the part and thereby defining the feature.

公开(公告)号：US20210087933A1

公开(公告)日：2021-03-25

申请号：US16577321

申请日：2019-09-20

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Visal ING ,  Ghislain HARDY ,  Joel JEAN

IPC分类号： F01D5/00 ,  B23H1/04 ,  B23H7/08 ,  B23H9/10

摘要： Methods of repairing a part having a firtree-shaped feature requiring rework are disclosed. An embodiment of the method includes receiving the part having the firtree-shaped feature requiring rework. The part is installed in a machine configured for wire electrical discharge machining (EDM). A location of the firtree-shaped feature relative to a datum of the machine is then determined. Wire EDM is performed on the firtree-shaped feature.

公开(公告)号：US20210102308A1

公开(公告)日：2021-04-08

申请号：US16776719

申请日：2020-01-30

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Visal ING ,  Frederic GIRARD ,  Pascal BRASSARD ,  Jonathan JOHNSON

IPC分类号： C25F3/02

摘要： A method of adding a feature to a part made of a metal alloy includes wire electric-discharge machining the feature into the part using a wire electrode having a zinc component to create a recast layer. After the step of wire electric-discharge machining the feature, at least some of the recast layer is removed by performing an electrochemical etching process that includes positioning a cathode adjacent the feature and passing current through a portion of the part that contains the feature.

公开(公告)号：US20230297062A1

公开(公告)日：2023-09-21

申请号：US17648616

申请日：2022-01-21

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Rachid GUIASSA ,  Visal ING

IPC分类号： B23C1/12 ,  B23C1/02

CPC分类号： B23C1/12 ,  B23C1/02

摘要： A method of machining a feature in a component using a machine having a support rotatable about a rotation axis and having a cutting tool movable relative to the component, the component being mounted on the support for rotation about a central axis of the component, the method includes: determining coordinates of at least three points on a reference surface of the component, the at least three points being circumferentially offset from one another relative to the central axis; determining an angular correction to apply to the cutting tool based on the coordinates of the at least three points; and machining the feature in the component using the cutting tool angled with the angular correction.

公开(公告)号：US20210026318A1

公开(公告)日：2021-01-28

申请号：US16521710

申请日：2019-07-25

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Mario BLAIS ,  Clement Drouin LABERGE ,  Visal ING

IPC分类号： G05B19/402 ,  B23Q17/22

摘要： The method can include measuring the tridimensional positions of a reference feature for a first at least three different angular positions of the reference feature around the first rotation axis and a same first reference angular position around the second rotation axis, the reference feature being fixed relative to the component; and measuring the tridimensional positions of the reference feature for a second at least three different angular positions of the reference feature around the first rotation axis and a same second reference angular position around the second rotation axis.

公开(公告)号：US20210023638A1

公开(公告)日：2021-01-28

申请号：US16523417

申请日：2019-07-26

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Joel JEAN ,  Ghislain HARDY ,  Visal ING

IPC分类号： B23H7/20 ,  B23H7/06 ,  B23H7/08

摘要： Methods and systems for wire-electro discharge machining of components are described. The method comprises machining a first component by moving a wire-EDM electrode along a first set of cutting paths associated with a plurality of cutting passes, the cutting paths determined based on a desired profile shape of the component, obtaining a cutting parameter of the first component post-machining, determining a first modified cutting path for a second component based on the cutting parameter, and machining the second component by moving the wire-EDM electrode along a second set of cutting paths associated with the plurality of cutting passes, the second set of cutting paths comprising the first modified cutting path.

公开(公告)号：US20140101939A1

公开(公告)日：2014-04-17

申请号：US14108465

申请日：2013-12-17

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Visal ING

IPC分类号： B21D53/78

CPC分类号： B21D53/78 ,  Y10T29/49316 ,  Y10T29/4932 ,  Y10T29/49321 ,  Y10T29/49336

摘要： A method of fabricating an integrally bladed rotor of a gas turbine engine according to one aspect, includes a 3-dimensional scanning process to generate a 3-dimensional profile of individual blades before being welded to the disc of the rotor. A blade distribution pattern on the disc is then determined in a computing process using data of the 3-dimensional profile of the individual blades such that the fabricated integrally bladed rotor is balanced.

摘要翻译： 根据一个方面的制造燃气涡轮发动机的整体叶片转子的方法包括在焊接到转子的盘之前产生单个叶片的三维轮廓的三维扫描过程。 然后使用各个叶片的三维轮廓的数据在计算过程中确定盘上的叶片分布图案，使得制造的整体叶片的转子是平衡的。