Wire electrical discharge machining applied to high-speed rotating workpieces

► Single discharges in WEDM are strongly influenced by the applied relative speed. ► The plasma easily slides over the workpiece/anode generating elongated craters. ► The shape of the elongated crater indicates how fast the crater radius expands. ► The amount of eroded volume per crater increases as relative speed is increased. ► Simulation results indicate higher melting efficiencies for higher relative speeds.