Abstract
AbstractThe present investigation has been initiated based on the wire electric discharge machining of Al7050/7.5 B4C stir cast metal matrix composite. Taguchi L9 orthogonal array has been used to analyses the concurrent effect pulse current (Ip), pulse-on time (Ton) and servo voltage (Sv) on material removal rate (MRR) and surface roughness. From Taguchi analysis, it is observed that the optimal setting of process parameters for maximum MRR is Ip3Ton3Sv3, whereas for minimum surface roughness, the optimal configuration of process parameters is Ip3Ton2Sv1. The error estimated between predicted MRR and surface roughness with experimental MRR and Surface roughness at the optimal setting of process parameters is within ±5%. Analysis of variance shows that Ip contributes maximum towards MRR and Ton contributes maximum towards surface roughness.KeywordsAA7050/7.5% (wt.) B4Cp compositeWEDMStir castingTaguchiAnalysis of variance
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