Slow Wire EDM, also known as low-speed wire cutting, is a CNC machining center that uses a continuously moving thin 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, and erode and cut the metal into the desired shape. The principle of Slow Wire EDM is the phenomenon of continuous discharge to remove metal due to the existing gap between the electrode wire and the workpiece.