EAN: 9783960672104

ELECTRICAL DISCHARGE MACHINING OPTIMIZATION OF ...

In the present study  optimization of chromium powder mixed EDM parameters is studied during
machining of H13 tool steel. Four input parameters of powder mixed EDM  namely peak current 
pulse on time  duty cycle and powder concentration  are varied  each at three levels  to get
the optimum responses. Material removal rate (MRR)  Tool wear rate (TWR) and Surface Roughness
(Ra) are considered as performance measures. Copper electrode of 16 mm is used as the tool.
Response Surface Methodology is used to correlate input and output parameters. The variation of
responses due to variation in input parameters has been studied and shown in the form of
surface plots and contour plots.

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