The electrochemical machining (ECMM) one of the most attractive method for micromachining of conductive materials. The industrial application of ECMM is limited by unsatisfactory dissolution localisation (what decrease machining accuracy). In recent years, thanks to nanosecond voltage pulse application, accuracy of electrochemical micro machining was significantly improved up to micrometers range, but the machined surface is also limited to micrometers size. However, in case of microstrucutes machining with area about 1 mm2 (i.e. tools for micro forming) this method is not effective, and the “classical” microsecond PECM has to be applied. Therefore, to find out limits of PECM accuracy the research on dissolution process localization are necessary. In the paper results of investigation carried out in order to investigate q(S)=A/Sn characteristic for microsecond voltage pulses machining has been presented. The research has been carried out for different interelectrode voltages and electrolytes. Thanks to experimental data there was possible to find out dissolution localisation factors “n” and estimate limits of microsecond voltage pulse machining accuracy.
Klasyfikacja PKT
371733 Obróbka erozyjna
371700 Technologia budowy maszyn
370000 Budowa maszyn. Przemysł maszynowy i metalowy
