General Electric Company

James R Bischoff

Kenneth B Haefner

Mark Douglas Ehresman

Steven F Comeau

A controlled EDM apparatus comprises at least one electrode mounted in a base, a driver for positioning the base, a system for providing electrical energy to the electrode, a monitor for measuring the electrical discharge frequency of the electrode, and a controller responsive to the monitor for controlling either the driver or the energy providing system. The apparatus operates by measuring the electrical discharge frequency of the electrode and controlling at least the duration of machining in accordance with the frequency measured.

Growing community of inventors

Wilmington, MA, United States of America

James R Bischoff