Fuzzy control strategy research of a micro-hole EDM

MEI Yang-han
（Department of Mechanical and Electrical Engineering， Dongguan Polytechinic， Dongguan 523808， China）

Abstract： In order to solve the problem of poor discharge environment，the complex and changing discharge state of micro-hole electrical discharge machining （EDM），and traditional PID control strategy is difficult to achieve the expected effect，a controller was established in accordance with driven model of piezoelectric ceramic，and control algorithm was researched. Not only the control system of the micro-hole EDM was designed based on fuzzy adaptive PID，but also simulation experiment was carried out. The results indicate that the fuzzy adaptive PID control can speed up the response speed of micro-feed system，and it has good stability and high precision. So it gets good control effect. Solid theoretical foundation is layed for the practical application of micro-hole EDM machining in future.
Key words： mico-hole； electrical discharge machining （EDM）； discharge detection； fuzzy control strategy； micro-feeding