Justification in Selection of Voltage Pulse Durations at the Electrochemical Dimensional Micromachining with Nano- and Microsecond Pulses

Abstract

The work is devoted to justifying the selection of a rational range of voltage pulse duration on the basis of comparing the time of the anodic dissolution start with the time of the electric double layer’s charging during electrochemical dimensional micromachining. The range of short circuit times as the limit of the maximum voltage pulse duration is justified. The simulation of dimensional electrochemical micromachining using ultrashort voltage pulses without taking into account the changes in the properties of the interelectrode environment is performed on the assumption that the anodic dissolution is determined by the Butler–Volmer equation. The zones of the current density, which have varying influence on the process of the dimensional electrochemical micromachining, are revealed. An approach to the selection of an effective voltage pulse duration based on the analysis of the character of the time zones of the process is proposed.