Electrical discharge machining, or EDM, shapes metal by creating sparks that melt tiny portions of the workpiece, and is an exceptionally diverse process that generates no cutting forces. EDM is especially useful in the production of fragile parts that cannot take the stress of conventional machining. This Electrical Discharge Machining program examines the EDM process, and the two primary forms of electrical discharge machining, RAM EDM, and wire EDM.
The EDM Process segment details the components of an EDM system, the EDM erosion process, and cycle time.
The RAM EDMing, or sinker EDM, segment outlines the process and presents the various process subsystems, including the power supply, dielectric fluid system, the electrode and its manufacture, and the servo system.
The Wire EDMing segment features the various wire EDM process subsystems, including the power supply, dielectric fluid system, the wire feeding system, and the wire positioning system. EDM holemaking is also explored.