Pulse train studies in EDM with controlled pulse relaxation |
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Authors: | A. Gangadhar M.S. Shunmugam P.K. Philip |
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Abstract: | Pulse train studies reveal the typical characteristics of the spark discharges associated with EDM. It has been observed that the use of reverse polarity and a powder-compact tool electrode influences the discharge phenomenon and results in an appreciable amount of deposition on the work surface. In the present investigation, electro-discharge machining has been carried out using combined pulse generation and a relaxation circuit which also enhances the tool electrode transfer and the pulse trains have been recorded using a dual-trace storage oscilloscope and an X-Y plotter. |
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