Micro-electro-discharge machining


A micromachining process using the discharge between micro-electrodes and the material.

While this technique uses the same principle as conventional electro-discharge machining, micro-energy discharge technology and micro-electrode production technology differ. That is, the floating capacitance between the electrode and the material being processed must be reduced and the electrode must be miniaturized by such methods as wire electro-discharge grinding (WEDG). With the WEDG method, electrodes with a diameter of 2.5 μm can be prepared and micro-holes can be processed with this electrode.


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