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 Charging Voltage for Maximum Power of Spark?
Charging Voltage for Maximum Power of Spark calculator uses Voltage at any Time for Charging Voltage = 0.72*Voltage of Power Supply Charging Voltage to calculate the Voltage at any Time for Charging Voltage, The Charging voltage for maximum power of spark formula is defined as the voltage at which the capacitor of charging circuit is being charged. Voltage at any Time for Charging Voltage is denoted by Vcv symbol.
How to calculate Charging Voltage for Maximum Power of Spark using this online calculator? To use this online calculator for Charging Voltage for Maximum Power of Spark, enter Voltage of Power Supply Charging Voltage (Vscv) and hit the calculate button. Here is how the Charging Voltage for Maximum Power of Spark calculation can be explained with given input values -> 7.2 = 0.72*10.01.