Electro-Discharge Machining (EDM) is
a process of metal removal by means of electrical energy released
by repetitive spark discharges. These electrical discharges
occur between an electrode and an electro-conductive work-piece,
and minute particles are eroded from both electrode and work-piece.
Wire EDM is a process in which a thin
electrode, a brass wire of usually dia. 0.25 mm, is used to
cut conductive materials such as steel, copper and aluminum.
The wire is continuously spooled, much like a handsaw blade,
passes through the workpiece and cuts shapes following a programmed
Laser is the acronym of Light Amplification
by Stimulated Emission of Radiation. The laser beam is focused
and strikes onto the surface resulting in the extremely high
power intensity. Processing is achieved from melting and vaporization
of the material.