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 Capacitance of Circuit from Energy per Spark EDM?
Capacitance of Circuit from Energy per Spark EDM calculator uses Capacitance Energydel/Spark = (2*Energy Delivered per Spark in Energydel/spark)/Voltage at Any Time t Energydel/spark^2 to calculate the Capacitance Energydel/Spark, Capacitance of circuit from energy per spark EDM is defined as the equivalent capacitance of all the capacitors connected in the relaxation circuit of EDM to produce spark. Capacitance Energydel/Spark is denoted by Ceds symbol.
How to calculate Capacitance of Circuit from Energy per Spark EDM using this online calculator? To use this online calculator for Capacitance of Circuit from Energy per Spark EDM, enter Energy Delivered per Spark in Energydel/spark (Peds) & Voltage at Any Time t Energydel/spark (Veds) and hit the calculate button. Here is how the Capacitance of Circuit from Energy per Spark EDM calculation can be explained with given input values -> 6 = (2*12)/2^2.