What Is Electrical Discharge Machining (EDM For Short)?
Electrical discharge machining (EDM) also called as “spark machining” is a machining method primarily used for hard metals or those that would be impossible to machine with traditional techniques. One critical limitation, however, is that it only works with materials that are electrically conductive. This method is especially well-suited for cutting intricate contours or delicate cavities that would be difficult to produce with a grinder, an end mill or other cutting tools. Metals that can be machined with EDM include hastalloy, hardened tool-steel, titanium, carbide, inconel and so on.