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    Electrical discharge machining assemblies and methods for using the same
    2.
    发明授权
    Electrical discharge machining assemblies and methods for using the same 有权

    公开(公告)号：US11904397B2

    公开(公告)日：2024-02-20

    申请号：US17665562

    申请日：2022-02-06

    申请人： GE-Hitachi Nuclear Energy Americas LLC

    发明人： Jack T. Matsumoto ,  Mark D. Sumner ,  Christopher M. Welsh

    IPC分类号： B23H1/04 ,  B23H9/14 ,  B23H7/12

    CPC分类号： B23H1/04 ,  B23H7/12 ,  B23H9/14

    摘要： EDM assemblies mount on a machining surface and discharge rotating sub-electrodes against the surface. The sub-electrodes can also revolve about another shared axis while discharging. Rotation and revolution may be achieved with planetary gears fixed with the sub-electrodes and meshing with a stationary sun gear. Several sub-electrodes can be used in a single assembly. Downward movement of the sub-electrodes from a central shaft on the mount allows several inches of the surface to be machined. Assemblies are usable in a nuclear reactor during a maintenance period to machine a hole for a replacement manway cover underwater in the flooded reactor. The differing rotational movements and vertical movement can be independently controlled with separate motors in the assembly. Power and controls may be provided remotely through an underwater connection.

    ELECTRODE FOR AN ELECTRO-EROSION PROCESS AND AN ASSOCIATED METHOD THEREOF
    5.
    发明申请
    ELECTRODE FOR AN ELECTRO-EROSION PROCESS AND AN ASSOCIATED METHOD THEREOF 审中-公开

    公开(公告)号：US20180093337A1

    公开(公告)日：2018-04-05

    申请号：US15281127

    申请日：2016-09-30

    申请人： General Electric Company

    发明人： Yuanfeng Luo ,  Andrew Lee Trimmer ,  Bernard Adel Ibrahim ,  Dale Robert Lombardo ,  John Anthony Vogel

    IPC分类号： B23H1/04

    CPC分类号： B23H1/04 ,  B23H1/10 ,  B23H3/04 ,  B23H3/10 ,  B23H7/12 ,  B23H7/22 ,  B23H7/36 ,  B23H2400/10

    摘要： Electrode for an electro-erosion process, includes a shaft, a body coupled to the shaft, a plurality of machining-inserts, an insulated layer, and a flushing cover disposed on the body and coupled to the shaft. The shaft includes a channel, a plurality of first openings and second openings, where each opening is connected to the channel. The body includes a plurality of main-flushing channels, where each channel is connected to a corresponding first opening. The plurality of machining-inserts is spaced apart from each other along a circumferential direction and detachably coupled to a peripheral end portion of the body. Each machining-insert includes at least one third opening connected to a corresponding main-flushing channel. The insulated layer is disposed on top and bottom surfaces of the body. The flushing cover includes a plurality of side-flushing channels and a plurality of fourth openings, where each channel is connected to a corresponding second opening.

    ELECTRICAL DISCHARGE MACHINING SYSTEM HAVING INDEPENDENT ELECTRODES, RELATED CONTROL SYSTEM AND METHOD
    8.
    发明申请
    ELECTRICAL DISCHARGE MACHINING SYSTEM HAVING INDEPENDENT ELECTRODES, RELATED CONTROL SYSTEM AND METHOD 审中-公开
    具有独立电极的电子放电加工系统，相关控制系统和方法

    公开(公告)号：US20170072488A1

    公开(公告)日：2017-03-16

    申请号：US14854484

    申请日：2015-09-15

    申请人： General Electric Company

    发明人： Yuefeng Luo ,  Shamgar Elijah McDowell

    IPC分类号： B23H1/02 ,  B23H1/04

    CPC分类号： B23H1/028 ,  B23H1/04 ,  B23H7/265 ,  B23H7/30 ,  B23H9/10 ,  B23H9/14

    摘要： An electrical discharge machining (EDM) system, control system and related methods. Various embodiments include a control system for controlling a plurality of electrode devices in an EDM system to form holes in a workpiece. The control system can be configured to perform a process including: initiating a hole formation program for each of the plurality of electrode devices; determining whether at least one electrode has completed formation of a corresponding hole in the workpiece; and separating the at least one electrode from the workpiece in response to determining that the at least one electrode has completed formation of the corresponding hole.

    摘要翻译： 放电加工（EDM）系统，控制系统及相关方法。 各种实施例包括用于控制EDM系统中的多个电极装置以在工件中形成孔的控制系统。 控制系统可以被配置为执行处理，包括：启动用于多个电极装置中的每一个的孔形成程序; 确定至少一个电极是否已经完成在所述工件中形成相应的孔; 以及响应于确定所述至少一个电极已经完成相应孔的形成而将所述至少一个电极与所述工件分离。

    WIRE ELECTRICAL DISCHARGE MACHINING APPARATUS
    9.
    发明申请
    WIRE ELECTRICAL DISCHARGE MACHINING APPARATUS 审中-公开
    电线放电加工设备

    公开(公告)号：US20160236292A1

    公开(公告)日：2016-08-18

    申请号：US15025915

    申请日：2013-10-31

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： Yasuo ONODERA ,  Yuhei DOMORI

    IPC分类号： B23H1/02 ,  B23H1/04

    CPC分类号： B23H1/022 ,  B23H1/04 ,  B23H7/065

    摘要： A wire electrical discharge machining apparatus capable of improving the shape precision of a continuous corner part includes a corner speed coefficient calculation device calculating a machining speed ratio between a middle corner section and a straight part from a machining volume ratio between the straight part and the middle corner section in which machining volume becomes a constant value. A corner speed coefficient interpolation device interpolates a speed coefficient calculated by the corner speed coefficient calculation device in a pre-corner section and a post-corner section. A speed reference calculation device calculates a machining speed reference based on a representative speed and the corner speed coefficient, and a drive control device controls a drive device. A continuous corner detection device determines whether continuous corner sections overlap each other when the length of the straight part connecting two corner parts is shorter than the length of the pre-corner section.

    摘要翻译： 能够提高连续角部的形状精度的线材放电加工装置包括：拐角速度系数计算装置，从直线部和中部的加工体积比计算中间角部与直线部之间的加工速度比 加工体积成为常数值的角部。 角速系数插补装置将由角速度系数计算装置算出的速度系数插入前角部和后角部。 速度基准计算装置基于代表速度和转弯速度系数来计算加工速度基准，驱动控制装置控制驱动装置。 当连接两个拐角部分的直线部分的长度短于前角部分的长度时，连续角部检测装置确定连续的拐角部分是否彼此重叠。

    WIRE ELECTRIC DISCHARGE MACHINE
    10.
    发明申请
    WIRE ELECTRIC DISCHARGE MACHINE 审中-公开
    电线放电机

    公开(公告)号：US20160074950A1

    公开(公告)日：2016-03-17

    申请号：US14646459

    申请日：2014-03-28

    申请人： MITSUBISHI ELECTRIC CORPORATION

    发明人： Yusuke SASAKI

    IPC分类号： B23H7/10 ,  B23H7/36 ,  B23H1/04

    CPC分类号： B23H7/10 ,  B23H1/04 ,  B23H7/101 ,  B23H7/108 ,  B23H7/36

    摘要： A wire electric discharge machine includes a wire electrode fed downward to a workpiece to perform electric discharge machining, a direction changing unit that changes a traveling direction of the wire electrode below the workpiece, a collection roller that collects the wire electrode, the traveling direction of which is changed, an extendable conveying pipe provided between the direction changing unit and the collection roller, the wire electrode being inserted through the inside of the conveying pipe, a supply unit that supplies the machining fluid into the conveying pipe, a supply-amount-information detecting unit that detects information concerning a supply amount of the machining fluid supplied to the conveying pipe, and a control unit that controls supply capacity for feeding the machining fluid to the conveying pipe from the supply unit on the basis of the information from the supply-amount-information detecting unit.

    摘要翻译： 线放电机包括：向下馈送到工件以进行放电加工的线电极，将线电极下方的线路的行进方向改变的方向改变单元，收集线电极的收集辊， 改变设置在方向改变单元和收集辊之间的可延伸输送管，线电极通过输送管的内部插入;供给单元，其将加工流体供应到输送管中;供给单元， 信息检测单元，其检测与供给到输送管道的加工液的供给量有关的信息;以及控制单元，其根据来自供给部的信息，控制从供给单元向输送管道供给加工液的供给量 - 信息检测单元。