Investigating the Effect of Copper Chromium and Aluminum Electrodes on EN-31 Die Steel on Electric Discharge Machine Using Positive Polarity
نویسنده
چکیده
Electric discharge machining (EDM) is a ‘newer technology utilized to machine hard metals, alloys, composites and ceramics. This paper reports the experimental investigation carried out on EDM to study the effects of machining parameters such as pulsed current on material removal rate, depth of cut, overcut, tool wear (net weight lost) and hardness on En-31 tool steel The work material was electric discharge machined with copper chromium and brass electrodes by varying the pulsed current at positive polarity. Investigations indicate that brass has better depth of cut and hardness while copper chromium, better MRR with lower tool wear
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