ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,377,482, issued on Aug. 5, was assigned to Agie Charmilles SA (Losone, Switzerland).
"Method for electrical discharge machining" was invented by Marco Boccadoro (Verscio, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for electrical discharge machining (EDM) a workpiece by means of a train of machining pulses. During the machining time the machining pulses are applied to the working gap between workpiece and electrode. An open voltage is first applied, and it is increased to a second open voltage level if a discharge does not occur within a waiting time do, and further increased to a third open voltage level if a discharge does not o...