PULSE DISCRIMINATION FOR ELECTRICAL DISCHARGE MACHINING WITH ROTATING ELECTRODE |
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Authors: | Kotler Ter Pey Tee Milan Brandt John Mo |
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Affiliation: | School of Aerospace, Mechanical and Manufacturing , Royal Melbourne Institute of Technology (RMIT) University , Bundoora , Victoria , Australia |
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Abstract: | This article presents a new method for discrimination of various types of pulses generated during an electrical discharge machining process in presence of a rotating electrode. Existing pulse discrimination methods do not perform efficiently in an electrical discharge machine with rotating electrode, as arcs rarely occur during the machining process. Our method involves simultaneous comparison of the gap voltage and current signals with various thresholds. The main advantage of our proposed method is its efficient computation and significantly better accuracy in discriminating between various pulse classes for electrical discharge machining devices with rotating electrode. Experimental studies demonstrate a superior performance of our method in distinguishing normal pulses from harmful arcs, open circuit and short circuit pulses, compared with the state-of-art methods. |
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Keywords: | electrical discharge grinding (EDG) electrical discharge machining (EDM) pulse discrimination spark erosion |
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