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    • 8. 发明授权
    • Process and device for machining by electroerosion
    • 电腐蚀加工工艺及装置
    • US06392183B1
    • 2002-05-21
    • US09599780
    • 2000-06-21
    • Roland MartinAldo GamboniMaurizio TognoliniGilbert Bovay
    • Roland MartinAldo GamboniMaurizio TognoliniGilbert Bovay
    • B23H102
    • B23H1/022B23H2300/20
    • In the process of machining by electroerosion, there is adjusted during a first transitory phase the machining current increase of the discharges after triggering a discharge between the electrode and the piece, such that a parameter connected to this increase will be substantially equal to a reference value corresponding to a minimum wear value of the electrode. Then, the machining current is maintained during a second phase at a reference value. The adjustment is carried out by acting on the adjustable internal voltage of a low impedance adjustable voltage source connected between the electrode and the piece. The adjustment can be carried out by a servo control loop with a regulator of the internal voltage, a device for generating discharges, parts adapted to determine the slope of increase of the current of a discharge, a member determining the mean slope of N discharges and a member adapted to compute the difference between the mean slope and a pre-established reference slope.
    • 在通过电蚀加工的过程中,在第一暂态阶段中调整在触发电极和片之间的放电之后放电的加工电流增加,使得与该增加相关联的参数将基本上等于参考值 对应于电极的最小磨损值。 然后,在参考值的第二阶段期间维持加工电流。 通过作用在连接在电极和片之间的低阻抗可调电压源的可调内部电压来进行调整。 该调节可以通过具有内部电压调节器的伺服控制回路,用于产生放电的装置,适于确定放电电流的增加的斜率的部件,确定N次放电的平均斜率的部件,以及 适于计算平均斜率与预先建立的参考斜率之间的差异的构件。