论文信息 - Optimization of Machining Parameters on Surface Roughness in EDM of Ti-6Al-4V Using Response Surface Method

Optimization of Machining Parameters on Surface Roughness in EDM of Ti-6Al-4V Using Response Surface Method

This paper presents the influence of EDM parameters in terms of peak ampere, pulse on time and pulse off time on surface roughness of titanium alloy (Ti-6Al-4V). A mathematical model for surface finish is developed using response surface method (RSM) and optimum machining setting in favor of surface finish are evaluated. Design of experiments (DOE) techniques is implemented. Analysis of variance (ANOVA) has been performed to verify the fit and adequacy of the developed mathematical models. The acquired results yield that the increasing pulse on time causes fine surface till a certain value and then deteriorates the surface finish. It is investigated that about 200 µs pulse off time produce superior surface finish. These results lead to desirable surface roughness and economical industrial machining by optimizing the input parameters.

Mahmudur Rahman | Kumaran Kadirgama | M. M. Noor | Rosli Abu Bakar | Md. Ashikur Rahman Khan

[1] Sameh Habib,et al. Study of the parameters in electrical discharge machining through response surface methodology approach , 2009 .

[2] C. L. Lin,et al. Optimisation of the EDM Process Based on the Orthogonal Array with Fuzzy Logic and Grey Relational Analysis Method , 2002 .

[3] P ? ? ? ? ? ? ? % ? ? ? ? , 1991 .

[4] U. Çaydas,et al. Electrical discharge machining of titanium alloy (Ti–6Al–4V) , 2007 .

[5] Z. G. Wang,et al. A Review on High-Speed Machining of Titanium Alloys ∗ , 2006 .

[6] Kazuo Yamazaki,et al. A fundamental study on Ti–6Al–4V's thermal and electrical properties and their relation to EDM productivity , 2008 .

[7] P. V. Rao,et al. The effect of process parameters on machining of magnesium nano alumina composites through EDM , 2010 .

[8] Surjya K. Pal,et al. Modeling of electrical discharge machining process using back propagation neural network and multi-objective optimization using non-dominating sorting genetic algorithm-II , 2007 .

[9] B. Yan,et al. The effect in EDM of a dielectric of a urea solution in water on modifying the surface of titanium , 2005 .

[10] B. Yan,et al. Improvement of surface finish on SKD steel using electro-discharge machining with aluminum and surfactant added dielectric , 2005 .

[11] Stephen T. Newman,et al. State of the art electrical discharge machining (EDM) , 2003 .