Purpose

Polymer Nanocomposites are advanced engineering composites with enhanced properties. These materials play a central role in various industrial sectors. The growing awareness of the key parameters (which influence the physical properties) with different combination of matrix-reinforcement, are making them more attractive in various applications. Machining of these materials is a challenging task for engineers with their properties (hardness and brittleness) due to various combinations of matrix-reinforcement. Therefore, the aim of present work is to investigate the machining behaviour of Silicon Dioxide (silica) Epoxy Nanocomposite due to straight cutting by using Wire Electrochemical Spark Cutting (WECSC) process.

Method

A specific number of experiments were conducted based on one parameter at-a-time approach to study the effect of influencing input parameters.

Result

The effect of various process parameters namely voltage supply, electrolyte concentration, wire velocity, pulse-on time and silica particle concentration (Cp) such as 3%, 4% and 5% (weight percent) on performance measures such as material removal rate (MRR) and surface roughness were demonstrated experimentally.

Conclusion

WECSC has been found effective technique for cutting of Silicon Dioxide Epoxy Nanocomposite. It is reported that MRR increases with decrease in silica particle concentration in Silicon Dioxide Epoxy Nanocomposite.

中文翻译：

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二氧化硅环氧纳米复合材料的线电化学火花切割性能研究的实验研究。

目的

聚合物纳米复合材料是具有增强性能的先进工程复合材料。这些材料在各个工业部门中发挥着核心作用。随着基质增强材料的不同组合，人们对关键参数（影响物理性能）的认识不断提高，这使其在各种应用中更具吸引力。由于基质增强的各种组合，对于材料的属性（硬度和脆性）而言，加工这些材料对于工程师而言是一项艰巨的任务。因此，本工作的目的是研究通过使用线电化学火花切割（WECSC）工艺进行的直切割而产生的二氧化硅（二氧化硅）环氧树脂纳米复合材料的机械加工性能。

方法

基于一次一次参数方法进行了特定数量的实验，以研究影响输入参数的影响。

结果

电压，电解液浓度，线速度，脉冲接通时间和二氧化硅颗粒浓度（Cp）等各种工艺参数（例如3％，4％和5％（重量百分比））对性能指标的影响，例如材料去除率（实验证明了MRR和表面粗糙度。

结论

已发现WECSC是切割二氧化硅环氧环氧树脂纳米复合材料的有效技术。据报道，随着二氧化硅微粒纳米复合物中二氧化硅颗粒浓度的降低，MRR增加。