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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 11    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 11, November 2011
Mathematical Modeling of Electrical Discharge Machining Process through Response Surface Methodology
Full Text(PDF, 3000)  PP.  
Author(s)
S. S. Baraskar, S. S. Banwait, S. C. Laroiya
KEYWORDS
central composite design, design of experiments, electrical discharge machine, mathematical models, response surface methodology, regression analysis.
ABSTRACT
Proper selection of manufacturing conditions is one of the most important aspects in the die sinking Electrical Discharge Machining process, as these conditions determine important characteristics such as Surface Roughness, Material Removal Rate and Tool Wear Rate. In this work, mathematical models have been developed for relating the Surface Roughness, Material Removal Rate and Tool Wear Rate to machining parameters like discharge current, pulse-on time and pulse-off time. The developed models predict the machining conditions from rough machining region to finish conditions within the experimenral domain. Response Surface Methodology has been applied for developing the models using the techniques of Design of Experiments and multi linear regression analysis. Central composite rotatable design was used to plan the experiments. Second order response surface models were found to be the most suitable in the present work. The developed models have been validated by conducting confirmation experiments.
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