Optimization of EDM Process Factors for Machining Al-Si Alloy Using Response Surface Methodology

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Saad H. Al-Shafaie
Nada Talib


This work exhibits an incorporated way to deal with the procedure demonstrating and multi-target improvement of EDM parameters of Al-Si based on response surface methodology (RSM) combined with desirability function (DF) method. The’ effect’ of’ process’ parameters   for’ example, pulse current (Ip), pulse’ on’ time’ (Ton) as well as pulse’ off’ time’ (Toff) on’ metal removal’ rate’ (MRR), electrode’ wear’ rate’ (EWR) and’ surface’ roughness’ (Ra), were analyzed. An extensive investigation of difference (ANOVA) at fixed indicative level of 5%, was done to completely distinguish the most persuasive parameters, and the sufficiency of all fitted relapse models were checked. To completely comprehend the trademark machinability conduct under various EDM conditions, fundamental effect investigation. The results indicate that MRR increases with the rising Ip and Ton. Low EWR and Ra can be acquired by diminishing Ip and Ton. Be that as it may, the Ip is the most commanding parameter pursued by Ton and Toff for MRR and Ra whereas in the EWR, the Ip is the foremost factor, followed by the Toff and Ton. Lastly, a multi-optimization way dependent upon the desirability function (DF) idea was used to discover ideal blends of machining parameters so that it was capable to produce the the most extreme estimation of MRR and least estimations of EWR and Ra, inside the noteworthy information parameters.


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How to Cite
S. H. Al-Shafaie and N. Talib, “Optimization of EDM Process Factors for Machining Al-Si Alloy Using Response Surface Methodology”, JUBES, vol. 26, no. 10, pp. 217 - 228, Nov. 2018.