This article presents an experimental investigation to assess the influence of input process parameters of machinability of wire electrical discharge machining (WEDM) process for machining of triple-reinforced silicon carbide, graphite, and iron oxide hybrid aluminum (Al-6061) metal matrix composites. The composite work specimens, developed using stir casting process, have been processed through WEDM process by adopting a statistically controlled design of experimentation approach. Furthermore, analysis of variance and regression analysis have been performed to understand the influence of the input process parameters on material removal rate (MRR) and spark gap (SG) width. The statistical analysis highlighted the improvements in MRR and SG by 33.72% and −27.28%, respectively, upon adopting the suggested optimized range of input process parameters. Further, the morphology of the machined composite surfaces has also been studied using scanning electron microscopy and energy dispersive spectroscopy to report the phenomenon of formation of recast layer.

本文提出了一项实验研究，以评估输入电火花线切割加工（WEDM）工艺对三重增强碳化硅，石墨和氧化铁杂化铝（Al-6061）金属基复合材料的可加工性的工艺参数的影响。采用搅拌铸造工艺开发的复合工作样品，采用统计控制设计的实验方法，通过WEDM工艺进行处理。此外，已进行方差分析和回归分析以了解输入工艺参数对材料去除率（MRR）和火花隙（SG）宽度的影响。统计分析突出显示，采用建议的输入过程参数优化范围后，MRR和SG分别提高了33.72％和-27.28％。