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Tension Control of a Wire Cut Discharge Machine Using ER Brake  

Kim Key-Sun (국립천안공업대학 기계과)
Cho Myung-Soo (인하대학교 기계공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.13, no.5, 2004 , pp. 24-29 More about this Journal
Abstract
This paper presents the tension control of a wire-cut discharge machine using electrorheological(E,R) fluid based brake system. On the basis of the tension level required in the machine, an appropriate size of the ER brake which features design simplicity, fast response and salient controllability is designed. Considering the Bingham property of ER fluid and actuator response time, the governing equation of the ER brake is derived. And a tension propagation of wire electrode is modeled via frequency response. The tension control performance of the discharge machine is simulated by using a robust sliding mode controller.
Keywords
Wire-Cut Discharge Machine; Electro­Rheological Brake; Tension Control; Sliding Mode Controller;
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