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    24.
    发明专利
    未知

    公开(公告)号：FR2517428B1

    公开(公告)日：1987-09-04

    申请号：FR8220012

    申请日：1982-11-29

    Applicant: INOUE JAPAX RES

    Inventor： INOUE KIYOSHI

    IPC: G01M1/38 ,  B23H1/00 ,  B23H9/00 ,  G01M1/22 ,  G01M1/34

    Abstract: A dynamic balancing machine having a full-automatic reforming unit is disclosed. The machine includes a pair of oscillatory bearing units for resiliently supporting a workpiece rotatably about a horizontal axis. Pickups are provided to sense the oscillations of the rotating workpiece about the axis. A computing unit responds to oscillation signals to determine therefrom and from signals representing the rotation of the workpiece the amounts and positions of local unbalance of the workpiece. For reforming operation, a fluid-actuated piston/cylinder arrangement is used to fix the axis of rotation of the workpiece in alignment with the horizontal axis to enable the workpiece to rotate without oscillations. The reforming unit comprises an EDM arrangement and control circuit responsive to the computing unit for controlling parameters of machining by an EDM tool electrode located in machining relationship with each of the regions of the computed positions so as to electroerosively remove from each region the computed amount of material and reform the workpiece.

    29.
    发明专利
    未知

    公开(公告)号：IT1167069B

    公开(公告)日：1987-05-06

    申请号：IT4766583

    申请日：1983-02-03

    Applicant: INOUE JAPAX RES ,  JAPAX INC

    Inventor： INOUE KIYOSHI ,  SHIMIZU AKIHIKO

    IPC: B23H1/04 ,  B23H7/18 ,  B23P

    Abstract: An electrode positioning method and apparatus for NC-EDM wherein a tool electrode and a workpiece are relatively displaced under commands of an NC unit while EDM stock removal of the workpiece is advanced by developing effective electrical discharges between the tool electrode and the workpiece. The method comprises counting the effective electrical discharges, deriving a corrective amount of displacement from a prescribed amount of electrode wear per single effective discharge, the effective machining area of the tool electrode and the counted number of the electrical discharges. The corrective amount is used to correct the commanded relative displacement.

    30.
    发明专利
    未知

    公开(公告)号：IT1164594B

    公开(公告)日：1987-04-15

    申请号：IT4800383

    申请日：1983-03-25

    Applicant: INOUE JAPAX RES

    Inventor： INOUE KIYOSHI

    IPC: B23H7/08 ,  B23P

    Abstract: An improved machining method and electrode for use in the traveling-wire EDM process utilizing an aqueous machining fluid medium which is decomposed by erosive electrical discharges into gaseous oxygen and hydrogen. Breakage of the traveling-wire electrode is reduced or eliminated through the use of an improved electrode element comprising a continuous electrode wire substrate and a layer of a polymeric substance having a temperature of thermal decomposition of 100 DEG to 500 DEG C. attached thereto in a distributed manner such as to partially cover the surface of the substrate. The improved electrode element traveling in machining juxtaposition with the workpiece is subjected to the electrical discharges to cause a thermal decomposition of the polymeric substance to form carbon and to allow the gaseous oxygen and hydrogen at least partially to be chemically combined therewith and to reduce the amount of the oxygen gases in the machining gap which tend to cause a continuous arc discharge or explosion as a cause of the wire breakage. The improved elongate element should preferably contain a hydrogen active catalytic metal, e.g. Li, Cs or Sm, having a spectrographic wavelength of 300 to 600 nm to facilitate chemical reaction of carbon with oxygen and hydrogen in the gap.

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