Abstract The paper deals with the problematics of die-sinking optimization and control systems. As it is known, Electric Discharge Machining is partly stochastic in nature. In the past, various optimization control algorithms have been developed and implemented to improve the overall performance of EDM die sinkers. AGIE has introduced Adaptive Control Optimization (ACO) algorithms as well as Adaptive Control Constraint (ACC) regulators. To satisfy the customers requirements even better, new techniques have been studied, and the use of fuzzy controllers is now reality. In the paper, a description of fuzzy controllers is given, its principles and results on commercial EDM AGIE die sinkers. It is proven that in comparison with traditional controllers, fuzzy regulators are definitely well suited in an EDM environnement.
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