Wire electrical discharge machining, also known as slow wire EDM, is a CNC machining center that uses a continuously moving fine metal wire (referred to as electrode wire, usually copper wire) as the electrode to subject the workpiece to pulse spark discharge. This generates temperatures above 6000 degrees Celsius, eroding the metal and cutting it into the desired shape. The principle of slow wire EDM is the continuous discharge to remove metal that occurs between the online electrode and the workpiece due to the presence of a gap.
