Patent ID: 6392183
Filing Date: 2002-05-21
Classification: B23H

Abstract:
Process for machining by electroerosion, according to which an electrode piece (P) is machined by an electrode-tool (O) separated from each other by a working space (G) by applying electrical impulses between the electrode-tool and the electrode-piece by an electrical circuit comprising at least one low impedance voltage source (E1, E22) and a regulation circuit (CP), characterized by the fact that an adjustment of the increase of current of the electrical impulses is controlled as a function of the time after triggering a discharge between the electrode-tool and electrode-piece such that a parameter (PN, TXn) connected to this current increase will be substantially equal to a reference amount (Pref, TXref) corresponding to a minimum wear value of the electrode tool and the adjustment of the current increase is carried out by loop such that a statistical size (PN, TXn) representative of said parameter coincides with said predetermined reference size (Pref, TXref).