EDM is the acronym for Electrical Discharge Machine. At Precision Torque Control, Inc. we can use our wire EDM machine to cut any conductive metal. Basically, the wire EDM machine uses a very fine wire that is electrically charged. The wire follows a patch defined by the surface geometry of the part. As the wire follows this path it removes the conductive material in the path thereby cutting the material into the defined shape.
This process is ideal for cutting very hard materials or complex shapes. The process leaves no burrs and can hold very tight tolerances. It can be used for prototype work and small production runs. Another benefit of the EDM process is that the cut surface is very smooth with no tool marks.