Use of an orthogonal arrangement for the analysis of the process of die sink electrical discharge machining with shape electrodes of graphite and copper on aluminum micro-casting)

  • Cristian Fabian Pérez Universidad Técnica de Ambato
  • Edwin Moya Universidad Técnica de Ambato
  • Diana Coello Universidad Técnica de Ambato
Keywords: orthogonal arrangement, electroerosion;, electrode;, roughness;, tooling wear


This paper deals with the use of the Taguchi method in the realization of experiments to solve the multiple answers in the process of EDM machining using copper and graphite electrodes. This manufacturing process was carried out on the aluminum microfusion material widely used in the footwear manufacturing industry. The experimentation was carried out according to an orthogonal arrangement L8. Analysis of variance (ANOVA) was used to determine the effects of the input variables (tooling material, pulse time, tool shape and cutting depth) on the output variables (material removal rate and surface roughness); as well as a regression analysis to predict the results of the experimental analysis. The results have shown that machining parameters can be optimized with considerations of multiple responses effectively. It is evident that the pulse time is the main influencer in the material removal rate (MRR) and the machining time has a greater influence on the surface roughness (Ra). Finally, it was demonstrated that the copper electrode has better working efficiency and the graphite gives better surface roughness.


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Author Biographies

Edwin Moya, Universidad Técnica de Ambato

Ayudante laboratorista de la Facultad de Ingeniería Civil Y Mecánica, en el Area de manufactura

Diana Coello, Universidad Técnica de Ambato

Dotora en Física, profesora investigadora de la Universidad Técnica de Ambato Facultad de Ingeniería Civíl y Mecánica. Trabaja como docente en las materias de física y diseño de experimentos de la FICM


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How to Cite
Pérez, C. F., Moya, E., & Coello, D. (2018). Use of an orthogonal arrangement for the analysis of the process of die sink electrical discharge machining with shape electrodes of graphite and copper on aluminum micro-casting). Enfoque UTE, 9(3), pp. 67 - 79.
Automation and Control, Mechatronics, Electromechanics, Automotive