electron discharge machining


electron discharge machining

[i′lek‚trän ′dis‚chärj mə‚shēn·iŋ] (metallurgy) A process by which materials that conduct electricity can be removed from a metal by an electric spark; used to form holes of varied shapes in materials of poor machinability. Abbreviated EDM. Also known as electrical discharge machining; electric spark machining; electroerosive machining; electrospark machining.