Performance of electrical discharge machining using aluminium powder suspended distilled water
Performance of electrical discharge machining using aluminium powder suspended distilled water
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铝粉悬浮蒸馏水放电加工性能
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Kuppan Palaniyandi
中科院分区：
文献类型：
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作者：
Khalid Hussain Syed;Kuppan Palaniyandi
本文介绍了在电火花加工液中添加金属铝粉的实验研究。随着绿色制造理念的日益强调，本研究采用蒸馏水与铝粉混合作为介电流体，而不是传统的烃基油。工件和电极材料分别选用W300模具钢和电解铜。田口实验设计用于通过改变参数峰值电流、脉冲接通时间、粉末浓度和极性来进行实验。该工艺性能是根据材料去除率（MRR），电极磨损率（EWR），平均表面粗糙度（Ra），和白色层厚度（WLT）。实验结果表明，极性对加工性能有显著影响。采用信噪比（S/N）和方差分析（ANOVA）来寻找工艺参数的最佳水平，以实现最大MRR、低EWR、Ra和WLT值。
This paper presents the experimental investigations on addition of aluminium metal powder to dielectric fluid in electric discharge machining (EDM). As more emphasis is given nowadays to the green manufacturing concept, the present investigation uses distilled water mixed with aluminium powder as dielectric fluid instead of conventional hydrocarbon-based oils. The workpiece and electrode materials chosen for the investigation are W300 die-steel and electrolytic copper, respectively. Taguchi design of experiments is used to conduct experiments by varying the parameters peak current, pulse on-time, concentration of the powder, and polarity. The process performance is measured in terms of material removal rate (MRR), electrode wear ratio (EWR), average surface roughness (Ra), and white layer thickness (WLT). The experimental results indicate that the polarity significantly affects the machining performance. Signal-to-noise (S/N) ratio and the analysis of variance (ANOVA) are employed to find the optimal levels for the process parameters to achieve maximum MRR, low EWR, Ra, and WLT values.