Manufacturing

Manufacturing

1. EDM

   • Principles
     • Two electrodes (the tool and the workpiece) immerged in a dielectric fluid, submitted to an electrical current Separated by a gap If gap small enough (< spark gap) Electrical discharges occurs Craters on the workpiece and on the tool Material removal occurs through the accumulation of craters produced by electrical discharges Can structure any (only) conductive material regardless of its hardness
     • EDM uses sparks from elcctrical currents to errode workpieces.