FIELD: manufacture of complex-shape surfaces of machine parts of easy-to-passivate materials.
SUBSTANCE: process comprises steps of applying trains of rectangular electric current HF-pulses clocked by time moment of maximum approaching of oscillating tool-electrode with electrode-blank; controlling repetition period of electric current pulses according to condition for keeping stabilized electrode potential in range of its minimum value; measuring electrode potential in time moment of turning-off electric current at termination of each current pulse of train; registering set value of electrode potential; for each next pulse train changing repetition period of pulses by some value till electrode potential achieves its minimum value.
EFFECT: elimination of flaws such as pitting and etched spots due to realizing optimal parameters of process.
7 cl, 3 dwg
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