What factors affects surface finish during EDM ?
The amount of material removed and the surface finish produced is dependent upon the current in the spark. The material removed by the spark can be assumed to be a crater. The amount removed therefore will depend upon the crater depth, which is directly proportional to the current. Thus as the material removed increases and at the same time, the surface finish also decreases. However, decreasing the current in the spark, but increasing its frequency will improve the surface finish in view of the small crater size, but at the same time, the material removal rate can be maintained by increasing the frequency.
How to Calculate Capacitance responsible for given overcut?
Capacitance responsible for given overcut calculator uses Capacitance in Surface Defect = ((Overcut in mm per side-Overcut Constant B)/Overcut Constant A)^(1/0.333) to calculate the Capacitance in Surface Defect, Capacitance responsible for given overcut formula is defined as the minimum capacitance that will create the given overcut due to side sparks in EDM. Capacitance in Surface Defect is denoted by Csd symbol.
How to calculate Capacitance responsible for given overcut using this online calculator? To use this online calculator for Capacitance responsible for given overcut, enter Overcut in mm per side (O), Overcut Constant B (B) & Overcut Constant A (A) and hit the calculate button. Here is how the Capacitance responsible for given overcut calculation can be explained with given input values -> 5.7E+12 = ((5-2.5)/1.4)^(1/0.333).