d), discharge frequency (fp), and pulse width (wp). The individual effects as well as interactions among the input factors have been considered for the analysis. The results of this investigation show that discharge current (Id) and discharge frequency (fd) control the erosion of material from the tool electrode. The material erosion from the tool electrode (Me) increases linearly with the discharge frequency. As the current index increases from 20 to 35, the Mdecreases linearly by e e 29%, and then increases by of 36%. The current index of 35 gives the minimum material erosion from the tool. It is observed that none of the two-factor interactions are significant in controlling the erosion of the material from the tool.

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Statistical Investigations into the Erosion of Material from the Tool in Micro-Electrical Discharge

Govindan Puthumana*
*Post-Doctoral Researcher, Department of Mechanical Engineering, Technical University of Denmark, Lyngby, Denmark.
Periodicity:November - January'2018
DOI : https://doi.org/10.26634/jme.8.1.13820

Abstract

This paper presents a statistical study of the erosion of material from the tool electrode in a micro-electrical discharge machining process. The work involves analysis of variance and analysis of means approaches on the results of the tool electrode wear rate obtained based on design of experiments approach. The input factors used in the experiments are discharge current (Id), discharge frequency (fp), and pulse width (wp). The individual effects as well as interactions among the input factors have been considered for the analysis. The results of this investigation show that discharge current (Id) and discharge frequency (fd) control the erosion of material from the tool electrode. The material erosion from the tool electrode (Me) increases linearly with the discharge frequency. As the current index increases from 20 to 35, the Mdecreases linearly by e e 29%, and then increases by of 36%. The current index of 35 gives the minimum material erosion from the tool. It is observed that none of the two-factor interactions are significant in controlling the erosion of the material from the tool.

Keywords

Material Erosion, Micro-EDM, Statistical Investigation, Factor Effect, Analysis of Variance, Analysis of Means.

How to Cite this Article?

Govindan, P. (2018). Statistical Investigations into the Erosion of Material from the Tool in Micro-Electrical Discharge. i-manager’s Journal on Mechanical Engineering, 8(1), 1-7. https://doi.org/10.26634/jme.8.1.13820

References

[1]. Babu, K. P., Chennaiah, M. B., & Mohan, N. K. (2016). Optimization of parameters influencing weld deposit area in Gas metal arc welding process. i-manager's Journal on Mechanical Engineering, 6(2), 23-29.
[2]. Badola, M. & Vaishya, R. O. (2016). Parameters Affecting Surface Roughness of Fused Deposition Modeling. i-manager's Journal on Mechanical Engineering, 6(1), 34-42.
[3]. Banu, A., Ali, M. Y., & Rahman, M. A. (2014). Microelectro discharge machining of non-conductive zirconia ceramic: Investigation of MRR and recast layer hardness. The International Journal of Advanced Manufacturing Technology,75(1-4), 257-267.
[4]. Bissacco, G., Hansen, H. N., Tristo, G., & Valentincic, J. (2011). Feasibility of wear compensation in micro EDM milling based on discharge counting and discharge population characterization. CIRP Annals-Manufacturing Technology, 60(1), 231-234.
[5]. Ichikawa, T. & Natsu, W. (2013). Realization of micro- EDM under ultra-small discharge energy by applying ultrasonic vibration to machining fluid. Procedia CIRP, 6, 326-331.
[6]. Jahan, M. P., Kakavand, P., Kwang, E. L. M., Rahman, M., & Wong, Y. S. (2015). An experimental investigation into the micro-electro-discharge machining behaviour of aluminium alloy (AA 2024). The International Journal of Advanced Manufacturing Technology, 78(5-8), 1127- 1139.
[7]. Jameson, E. C. (2001). Description and Development of Electrical Discharge Machining (EDM). Electrical Discharge Machining, Society of Manufacturing Engineers, Dearborn, Michigan, pp. 1-12.
[8]. Jung, J. H. & Kwon, W. T. (2010). Optimization of EDM process for multiple performance characteristics using Taguchi method and Grey relational analysis. Journal of Mechanical Science and Technology, 24(5), 1083-1090.
[10]. Liao, Y. S., & Liang, H. W. (2016). Study of Vibration Assisted Inclined feed Micro-EDM Drilling. Procedia CIRP, 42, 552-556.
[11]. Malik, A., Singh, H., & Prakash, S. (2015). Optimization of Coating Parameters of Flame Spraying using Taguchi based Grey Relational Analysis. i-manager's Journal on Mechanical Engineering, 5(4), 27-34.
[12]. Masuzawa, T. (2000). State of the art micromachining, CIRP Annals-Manufacturing Technology, 49(2), 473-488.
[13]. Matta, D., Garg, J., & Sharma, N. (2013). Experimental Investigation of Control Factors of WEDM for AL-6063. i-manager's Journal on Mechanical Engineering, 3(2), 33-38.
[14]. Meena, V. K., Azad, M. S., Singh, S., & Singh, N. (2016). Micro-EDM multiple parameter optimization for Cp titanium. The International Journal of Advanced Manufacturing Technology, 89(1-4), 897-904.
[15]. Pham, D. T., Ivanov, A., Bigot, S., Popov, K., & Dimov, S. (2007). A study of micro-electro discharge machining electrode wear. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 221(5), 605-612.
[16]. Prihandana, G. S., Mahardika, M., Hamdi, M., Wong, Y. S., & Mitsui, K. (2009). Effect of micro-powder suspension and ultrasonic vibration of dielectric fluid in micro-EDM processes-Taguchi approach. International Journal of Machine Tools and Manufacture, 49(12), 1035-1041.
[17]. Rajurkar, K. P. & Yu, Z. Y. (2000). 3D micro-EDM using CAD/CAM. CIRP Annals-Manufacturing Technology, 49(1), 127-130.
[18]. Sharma, N., Khanna, R., Gupta, R. D., & Gupta, P. (2012). Effect of Process Parameters on Cutting rate in WEDM using Response Surface Methodology. i-manager's Journal on Mechanical Engineering, 2(1), 28-34.
[20]. Tang, L. & Guo, Y. F. (2014). Electrical discharge precision machining parameters optimization investigation on S-03 special stainless steel. The International Journal of Advanced Manufacturing Technology, 70(5-8), 1369- 1376.
[21]. Tiwary, A. P., Pradhan, B. B., & Bhattacharyya, B. (2015). Study on the influence of micro-EDM process parameters during machining of Ti–6Al–4V superalloy. The International Journal of Advanced Manufacturing Technology, 76(1-4), 151-160.
[22]. Uhlmann, E. & Roehner, M. (2008). Investigations on reduction of tool electrode wear in micro-EDM using novel electrode materials. CIRP Journal of Manufacturing Science and Technology, 1(2), 92-96.
[23]. Wong, Y. S., Rahman, M., Lim, H. S., Han, H., & Ravi, N. (2003). Investigation of micro-EDM material removal characteristics using single RC-pulse discharges. Journal of Materials Processing Technology, 140(1), 303-307.
[24]. Yeo, S. H. & Tan, L. K. (1999). Effects of ultrasonic vibrations in micro electro-discharge machining of microholes. Journal of Micromechanics and Micro Engineering, 9(4), 345-352.
[25]. Yu, Z., Rajurkar, K. P., & Prabhuram, P. D. (2002). Study of Contouring Micro EDM Characteristics. In Initiatives of Precision Engineering at the Beginning of a Millennium (pp.199-203). Springer, Boston, MA.
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