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Mathematical Modeling of Machining Parameters in Electrical Discharge Machining with Cu-B4C Composite Electrode

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Abstract:

Copper based metal matrix composite reinforced with Boron Carbide is a newly developed Electrical Discharge Machining (EDM) electrode showing better performance than the conventional copper based electrode. Right selection of machining parameters such as current, pulse on time and pulse off time is one of the most important aspects in EDM. In this paper an attempt has been made to develop mathematical models for relating the Material Removal Rate (MRR), Tool Removal Rate (TRR) and Surface roughness (Ra) to machining parameters (current, pulse-on time and pulse-off time). Furthermore, a study was carried out to analyze the effects of machining parameters on various performance parameters such as, MRR, TRR and Ra. The results of Analysis of Variance (ANOVA) indicate that the proposed mathematical models, can adequately describe the performance within the limits of the factors being studied. Response surface modeling is used to develop surface and contour graphs to analyze the effects of EDM input parameters on outer parameters.

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Periodical:

Advanced Materials Research (Volumes 488-489)

Pages:

871-875

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.488-489.871

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Online since:

March 2012

Authors:

V. Anandakrishnan, V. Senthilkumar

Keywords:

ANOVA, Composite Electrode, Electrical Discharge Machining (EDM), Regression Coefficient, Response Surface Methodology (RSM)

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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