32.  Overcut is the amount the cavity in the workpiece is cut larger than the size of the electrode used in the machining process.  The distance between the surface of the work and the surface of the electrode (overcut) is equal to the length of the sparks discharged, which is constant over all areas of the electrode.

38.  How many dielectric filter cartridges does the GF FORM E 350 have?

30.  A direct current of low voltage and high amperage is delivered to the electrode at the rate of approximately 20,000 hertz (Hz).

49.  One method of circulating dielectric oils is down through the electrode,  this can be done with a small hole (.01-.04″).

42.  One advantage of an EDM, broken taps or drills can readily be removed from workpieces (carbide or HSS).

17. The electrode in die sinking EDM is formed to shape of the cavity desired.

10.   EDM is a controlled metal-removal techniques whereby an electric spark is used to cut (erode or melt) the workpiece, which takes a shape opposite to that of the cutting tool or electrode.

35.  On a FORM E 350, always make sure that the level of dielectric oil of the electrolyte is 50mm higher than the highest erosion point.

29.  This dielectric fluid should be a good conductor of electricity.

4. What is the liquid that fills the tank and goes between the wire and workpiece