Wire-cut EDM, also known as slow wire-cutting, is a CNC machining center that uses a continuously moving fine metal wire (referred to as electrode wire, typically copper wire) as the electrode to perform pulse spark discharge on the workpiece, generating temperatures above 6000 degrees Celsius, eroding and cutting the metal into the desired shape. The principle of slow wire-cutting is the continuous discharge phenomenon that occurs due to the presence of a gap between the electrode wire and the workpiece.