تأثير متغيرات التشغيل بعملية التفريغ الكهربائي

Abstract

The results of research show that the increase in dwell time pulse leads to a decreased rate of removal of each metal piece and the operator and the pole removed, had the highest rate of carbide-type (GT 30) while the lowest rate of removal of carbide-type (K 30), which was the rate of consumption in the polar (K30) is higher than the first type (GT30) and the results showed that the consumption of copper cathode was greater than consumption of Graphite Electrodes, regardless of the amount of time of stay of pulse. On the other hand found that the time of stay of the pulse (5 → 100) ms lead to a high degree of surface roughness and therefore less resistance to accidental breakage. The increase of pressure (50 → 145) kPa leads to a decrease in the rate of removal of the pole, while the increase to ( 250) kPa leads to increase the rate of removal of the pole. The results showed also that increasing the pressure of the electrolytic solution (50 → 145) kPa leads to a reduction of surface roughness and hardness of all carbides used, and therefore increase the resistance of accidental breakage, while the opposite will happen that when you increase pressure solution to electrolytic (250) kPa.