Electrical Discharge Machining (or EDM)
is a machining method primarily used for hard metals or those that would
be impossible to machine with traditional techniques. EDM can cut
odd-shaped angles, intricate contours or cavities in pre-harden steel
without the need for heat treatment to soften and re-harden them. These
are some of the advantages of EDM Machining:
Complex shapes that would be otherwise difficult to produce with
conventional cutting tools.
Precise punches and dies that would allow minimal clearance for
defined parts with little to no burr.
material to very close tolerances.
Very small work
pieces where conventional cutting tools may damage the part from
excess cutting tool pressure.