Modelling and Analysis of Electrical Discharge Alloying through Taguchi Technique

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Abstract:

Electrical discharge alloying was performed on AISI D2 tool steel with addition of nickel powder. Taguchi method has been used to plan and analysis the experiment.The major parameters like Peak current, pulse on time, and pulse off are taken for this study for formation of alloyed layer. The influences of these process parameters have been identified by Signal to noise ratio (S/N) and analysis of variance (ANOVA) and their results are within the limits of predicted and experimental values. The experiments were conducted on a specially designed apparatus in laboratory itself. The layer thickness varies from 70 to 140 μm and the highest hardness value of 1788 HV0.3 with a lower specific wear rate.

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521-524

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July 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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