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    • 7. 发明公开
    • Method and generator for electrical discharge machining
    • 用于放电加工的方法和发生器
    • EP1749607A1
    • 2007-02-07
    • EP05016698.2
    • 2005-08-01
    • AGIE SACHARMILLES TECHNOLOGIES S.A.
    • Bühler, ErnstBesson, FranckD'Amario, RinoGiandomenico, NicolaKnaak, Reto
    • B23H7/04B23H1/02
    • B23H1/022B23H7/04
    • The invention relates to a method and a generator for generating a time sequence of discharge pulses for EDM machining wherein a pulse capacitor (22) for generating the discharge pulse is charged with a charging voltage (U_chrg) and then discharged into the spark gap. The pulse capacitor (22) after being discharged is recharged with a charging voltage (Uchrg) having the same polarity as that of the residual voltage (U_end) remaining at the pulse capacitor (22) after its discharge. Thereafter, the pulse capacitor (22) is discharged with a discharge pulse into the spark gap, wherein the polarity of the discharge pulse is independent of the polarity of the charging voltage (U_chrg) at the pulse capacitor (22) after its recharge.
    • 本发明涉及一种用于产生用于EDM加工的放电脉冲的时间序列的方法和发生器,其中用于产生放电脉冲的脉冲电容器(22)以充电电压(U_chrg)被充电并且然后被放电到火花隙中。 放电之后的脉冲电容器(22)以与其在放电之后剩余在脉冲电容器(22)上的剩余电压(U_end)具有相同极性的充电电压(Uchrg)被再充电。 之后,脉冲电容器(22)以放电脉冲放电到火花隙中,其中放电脉冲的极性与脉冲电容器(22)在充电之后的充电电压(U_chrg)的极性无关。