Microelectrochemical Machining at the Ultrasmall Interelectrode Gaps with the Use of the Packets of Nanosecond Voltage Pulses

• Published in: Procedia CIRP 2016, Vol.42, p.831-836
• Main Authors: Lyubimov, V.V., Volgin, V.M., Venevtsev, A.Yu, Gnidina, I.V.
• Format: Article
• Language: English
• Subjects: Electrochemical micromachining; packet of pulses; ultrasmall interelectrode gap
• ISSN: 2212-8271; 2212-8271
• DOI: 10.1016/j.procir.2016.03.003

The accuracy of the electrochemical machining is determined by the value of the interelectrode gap (IEG). The stability of the process of the anodic dissolution at the ultrasmall interelectrode gaps is connected with the optimal dosage of the electric energy put into the electrolyser. The decrease of the IEG up to 10…20μm demands of the narrow pulses of the voltage and small packets of pulses. The work deals with the theoretical and experimental researches of the process of the electrochemical micromachining at the ultrasmall IEG with the use of the packets of pulses up to 100…200ns. The method of the envelope curves on the maximums of the current pulses in the packet of pulses is used to define the accuracy of the machining and the speed of the leveling of the initial accuracy of the machining. The modeling of the process of the anodic dissolution at the ultrasmall IEG with the taking into account of gas generation and heating of the electrolyte. The produced experimental plant was used to carry out the researches of the electrochemical micromachining with the use of the nanosecond pulses voltage.