High-speed compound sinking machining of Inconel 718 using water in oil nanoemulsion

High-speed compound sinking machining of Inconel 718 using water in oil nanoemulsion
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利用油包水纳米乳液对 Inconel 718 进行高速复合沉孔加工

DOI:
10.1016/j.jmatprotec.2019.116271
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发表时间:
2019-12
影响因子:
6.3
通讯作者:
Shen Yang
Shen Yang
中科院分区:
材料科学1区
文献类型:
--
作者:
Dong Hang;Liu Yonghong;Li Ming;Liu Tong;Zhou Yu;Li Dege;Shen Yang

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本研究提出一种新型的油包水(W/O)纳米乳化液介质用于高速复合切削。复合加工是电弧加工和电火花加工的结合。通过与传统水基介质复合加工的对比,系统研究了W/O纳米乳液复合加工的性能。研究了电极极性、峰值电流和脉冲宽度对材料去除率和相对电极磨损率的影响。利用扫描电子显微镜(SEM)、能谱仪(EDS)和显微硬度计对加工表面进行了分析。实验结果表明,与水基介质相比,W/O纳米乳化液加工可获得更高的MRR、更低的REWR和更好的表面质量。因此,W/O纳米乳液可以替代水基介质用于高速复合切削加工。
This study proposes a novel water in oil (W/O) nanoemulsion dielectric for use in high-speed compound sinking machining. The compound machining is the combination of arc machining and electric discharge machining (EDM). The performance of the compound machining using the proposed W/O nanoemulsion is investigated systemically by comparing with that using the traditional water based dielectric. The influences of electrode polarity, peak current, and pulse duration on the material removal rate (MRR) and relative electrode wear rate (REWR) are studied. Moreover, the characteristics of machined surface are investigated using scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), and micro hardness analysis. Experimental results demonstrate that compared with water based dielectric, machining with W/O nanoemulsion can obtain higher MRR, lower REWR, and better surface quality. Therefore, W/O nanoemulsion could be an alternative to water based dielectric in high-speed compound sinking machining applications.
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