How the spark is produced in Electric Discharge Machining ?
A typical circuit used for supplying the power to an EDM machine is named as the relaxation circuit. The circuit consists of a DC power source, which charges the capacitor ‘C’ across a resistance ‘Rc’. Initially when the capacitor is in the uncharged condition, when the power supply is on with a voltage of Vo, a heavy current, ic, will flow in the circuit as shown to charge the capacitor. The relaxation circuit as explained above was used in the early EDM machines. They are limited to the low material removal rates for fine finish, which limits its application. This can be explained from the fact that the time spent on charging the capacitor is quite large during which time, no machining can actually take place. Thus the material removal rates are low.
How to Calculate Resistance of Discharging Circuit Discharge Voltage?
Resistance of Discharging Circuit Discharge Voltage calculator uses Resistance of Discharging Circuit = Voltage of Discharge Current/Discharge Current to calculate the Resistance of Discharging Circuit, Resistance of discharging circuit discharge voltage formula is defined as the sum of inductive resistance and resistance of the sparking load in the discharging circuit. Resistance of Discharging Circuit is denoted by RLS symbol.
How to calculate Resistance of Discharging Circuit Discharge Voltage using this online calculator? To use this online calculator for Resistance of Discharging Circuit Discharge Voltage, enter Voltage of Discharge Current (VEDM) & Discharge Current (id) and hit the calculate button. Here is how the Resistance of Discharging Circuit Discharge Voltage calculation can be explained with given input values -> 0.3 = 0.75/2.5.