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 Frequency of Cutting using Charging and Sparking Time?
Frequency of Cutting using Charging and Sparking Time calculator uses Frequency of Cutting = 1/(Sparking Time+Charging Time) to calculate the Frequency of Cutting, The Frequency of cutting using charging and sparking time formula is defined as the inverse of sum of charging time and sparking time. Frequency of Cutting is denoted by fcut symbol.
How to calculate Frequency of Cutting using Charging and Sparking Time using this online calculator? To use this online calculator for Frequency of Cutting using Charging and Sparking Time, enter Sparking Time (ts) & Charging Time (tc) and hit the calculate button. Here is how the Frequency of Cutting using Charging and Sparking Time calculation can be explained with given input values -> 3.333333 = 1/(0.2+199.8).