Optimal parameter prediction of oxygen-mist near-dry Wire-cut EDM

被引:0
|
作者
Boopathi S. [1 ]
Sivakumar K. [1 ]
机构
[1] Department of Mechanical Engineering, Bannariamman Institute of Technology, Sathyamangalam, Erode, Tamil Nadu
关键词
Multi-objective artificial bee colony; Near-dry WEDM; Oxygen-mist; Pareto-optimal-front; Taguchi method;
D O I
10.1504/IJMTM.2016.077812
中图分类号
学科分类号
摘要
Wire-cut electrical discharge machining (WEDM) is one of the important non-traditional machining processes to cut hard and high strength materials. It was observed from the literature that some environmental pollutants had been emitted owing to thermal decomposition of the liquid dielectric mediums used in WEDM. In this near-dry WEDM process, oxygen-mist is used as a dielectric medium which encourages the eco-friendly cutting process owing to minimal usage of liquid-based dielectric medium. In this paper, the experiments have been performed using the compressed oxygen gas mixed with minimum quantity of demineralised water as a dielectric medium. The design of experiments has been performed using Taguchi's L27 orthogonal array. The spark-current, pulse-on-time, oxygen-mist inlet pressure and mixing flow rate are selected as input parameters, and material removal rate and surface roughness are considered as response characteristics. After the experimentation, the regression analysis has been employed to develop the best mathematical models for the multi-objective optimisation purpose. Multi-objective artificial bee colony (MOABC) algorithm is introduced to predict the optimal set of input and output parameters using non-dominated Pareto-optimal-front solutions. Copyright © 2016 Inderscience Enterprises Ltd.
引用
收藏
页码:164 / 178
页数:14
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