METHOD OF ELECTROCHEMICAL TREATMENT Russian patent published in 1995 - IPC

FIELD: electrochemical treatment. SUBSTANCE: oscillating motions are applied to one electrode, and working pulses are applied from power supply with abrupt slope of decrease in volt-ampere characteristics. Start point of application of pulses is synchronized with phase of approaching electrodes. Current value of voltage in the pulse is controlled, and value of voltage is regulated due to changing regimes of treatment. Speed of advance of one electrode is adjusted according to deviation of parameters of real voltage pulses from standard ones by checking admissible value of non-stability of the process, which is judged from difference in relations of resistances for previous and sequent voltage pulses in specific points of leading edge and cut-off edge of the pulse, which equal in phase, at voltage level of 1.5-2.5 V. The pulse is specified as standard one at treat stage till getting in working space, which pulse has sinusoide positive half-wave shape. After pulse enters working space, and electrode-tool is deepened into the blank, the pulses are used as reference ones, the shape of which is described by corresponding mathematic relations. EFFECT: improved efficiency. 2 cl, 6 dwg