2021年9月1日 · EDM principle refers to a non-conventional technic capable of cutting any material with conductivity above 0.01 S/cm [6]. The process consists of gradual melting the workpiece surface by thermal energy, employing high-frequency discharges between the workpiece and an electrode in the presence of dielectric fluid [7].

2009年5月1日 · In this paper, a new EDM adaptive control system which directly and automatically regulates tool-down-time has been developed. Based on the real-time-estimated parameters of the EDM process model, by using minimum-variance control strategy, the process controller, a self-tuning regulator, was designed to control the machining process so that ...

2023年12月4日 · To provide more accurate servo control signals for multi-axis EDM and improve the machining efficiency of shrouded blisks, this paper develops an adaptive servo sensitivity control algorithm (ASSCA). The servo sensitivity S S is adjusted by adaptive control algorithm in real time based on the gap voltage U and the servo reference voltage U ref .

1992年1月1日 · Since this newly developed EDM adaptive control system is based on the analysis of process stochastic features, during poor flushing machining, it has a better control performance than other EDM servo adaptive control systems.

2011年7月29日 · In order to improve the performance of micro-electrical discharge machining (micro-EDM), the most important issue is to develop a highly stable servo control system. In order to account for the characteristics of high frequency, serious signal distortion, and high noise in micro-EDM process, type-2 fuzzy logic sets are introduced which is able ...

2023年10月27日 · The relative discharge ratio, machining efficiency, electrode wear, and surface roughness using different control strategies (proportional–integral–derivative, modified servo control, and conventional control strategies) were compared and analyzed using a custom-made ball screw EDM servo system, and we obtained effective improvement ...

In this paper, a new EDM adaptive control system which directly and automatically regulates tool-down-time has been developed. Based on the real-time-estimated parameters of the EDM process model, by using minimum-variance control strategy, the process controller, a self-tuning regulator, was designed to control the machining process so that ...

Figure 1 shows the block diagram of an EDM servo control system. A servo is mostly employed in systems where the feedback or error-correction signals are applied to controlling mechanical...

2021年10月27日 · Due to a short-time gap breakdown in electrical discharge machining (EDM), a high dynamic response and flexible discharge current control ability are required for a pulse power generator. Therefore, a one-cycle control (OCC) of output current for a buck-type EDM pulse power generator is proposed.

1997年11月1日 · This paper reviews the research and development of advanced monitoring and control systems for die-sinking EDM and wire EDM during the last two decades. Important research activities include different EDM gap monitoring systems, servo and pulse adaptive control systems, and knowledge base control systems.