(Image courtesy of Makino.)
Electrical discharge machining (EDM) has long been the answer for high accuracy, demanding machining applications where conventional metal removal is difficult or impossible.
Known by many other names, including spark machining, arc machining and (inaccurately) burning, the EDM process is conceptually very simple: an electrical current passes between an electrode and a workpiece which are separated by a dielectric liquid. The dielectric fluid acts as an electr…
Source URL: EDM 101: Electrical Discharge Machining Basics
Source Website: Advance Engineering – Engineering.com