Journal of Computational & Applied Research in Mechanical Engineering (JCARME)

Document Type : Research Paper

Authors

¹ Department of Mechanical Engineering, Assistant Professor, Annamacharya Institute of Technology and Sciences, Rajampet, Andhra pradesh, India.

² Department of Mechanical Engineering, Centurion University of Technology and Management, India

³ Department of Mechanical Engineering, S.V College of Engineering, India

https://doi.org/10.22061/jcarme.2019.5056.1620

Abstract

Electro Discharge Machining (EDM) is an incredibly recognizable machining for ticklishness profiles in ’difficult to machine ‘materials. In EDM, the material ejection of the cathode is cultivated through exact controlled electric pulse (the flash), which changes the metals of two terminals into dissolve and vaporize, as a result of the breakdown of the dielectric medium. The most commonly used dielectric media are kerosene, paraffin, glycerin, transformer oil, and EDM oil; all are derived from petroleum. These dielectric media undergo pyrolysis and carbon soot formation is deposited on work electrode, and sometimes carbon precipitates into work. To overcome these effects vegetable oils are tried as alternate dielectric media. Pongamia Pinnetta is abundantly available in most countries; and it is cheaper and non-edible. Pongamia Pinnata (PP) oil is extracted from plant seeds, and is blended with EDM oil and several experimentations are done to find its suitability. Operational variables with respect to input and output parameters are identified. Some of these are best EWR, MRR, TWR, and SR with applied current (I), pulse on time (T_on), and pulse off time (T_off) are the ones picked as the input process factors; because for the industrial application many machinists choose these three as the input parameters; and other is constant and picked under specific requirements only. After the successful completion of this experimentations, Pongamia Pinnata oil blends are fit for the industrial application using technique of order preferancing with similar to ideal solution [TOPSIS]. It is observed that no carbon soot formation takes place in the work component with PP oil as the dielectric fluid.

Graphical Abstract

Keywords

dor

20.1001.1.22287922.2021.11.1.5.7

Main Subjects

Manufacturing Processes

References

[1] Chakraborty S, V. Dey, S.K. Ghosh “A review on the use of dielectric fluids and their effects in electrical discharge machining characteristics”. Precision Engineering (2014),

[2] Fábio N Leao, Ian RPashby. “A review on the use of environmentally-friendly dielectric fluids in electrical discharge machining”. J Mater Process Technol 2004; 149: 341–6.

[3] Kunieda M, Yoshida M. “Electrical discharge machining in gas”. Ann CIRP1997; 46:143–6.

[4] Bobade S.N. and Khyade V.B. “Detail study on the Properties of Pongamia Pinnata (Karanja) for the Production of Biofuel”, Research Journal of Chemical Sciences, Vol. 2 (7), 16-20, July (2012), 16-20.

[5] M. Dastagiri, P. Srinivasa Rao and P. Madar Valli, “Optimization of EDM process parameters by using heuristic approach”, Materials Today: Proceedings 5 (2018) 27036–27042.

[6] I. Fofana, "50 Years in Development of Insulating Liquids", IEEE Elect. Insul. Mag., vol. 29, no. 5, pp. 13-25, September/ October 2013.

[7] A. A. Pollitt. "Mineral Oils for Transformers and Switchgear", IEEE Elect. Insul. Mag. pp. 15-22, 13^th May 1942.

[8] Z. H. Shah and Q. A. Tahir, "Dielectric Properties of Vegetable Oils", Jsr Journal of Scientific Researchs, vol. 3, no. 3, pp. 481-492, 19^th May 2011.

[9] A. A. Abdelmalik, J. C. Fothergill, and S. J. Dodd, "Electrical Conduction and Dielectric Breakdown Characteristics of Alkyl Ester Dielectric Fluids obtained from Palm Kernel Oil", IEEE Elect. Insul. Mag., vol. 19, no. 5, pp. 1623-1632, October 2012.

[10] M. Augusta G. Martins, "Vegetable oils an Alternative to Mineral Oil for Power Transformers-Experimental Study of Paper Aging in Vegetable Oil Versus Mineral Oil", IEEE Elect. Insul. Mag., vol. 26, no. 6, pp. 7-13, November/December 2010.

[11] Dastagiri, M, P. Srinivasa Rao, and P. Madar Valli. "TOPSIS, GRA methods for parametric optimization on wire electrical discharge machining (WEDM) process." All India Manufacturing Technology, Design and Research Conference (AIMTDR–2016) College of Engineering-India. 2016., PP 497-504, ISBN: 978-93-86256-27-0.

[12] Govindan, P.; Joshi, S.S. (2012) “Analysis of micro-cracks on machined surfaces in dry electrical discharge machining”. Journal of Manufacturing Processes, 14: 277–288.

[13] Ekmekci, B.; Elkoca, O.; Tekkaya, A.E.; Erden, A. (2005) “Residual stress state and hardness depth in electrical discharge machining: de-ionized water as dielectric liquid”. Machining Science and Technology, 9(1): 39–61.

[14] Dastagiri M, Kumar A H. “Experimental Investigation of EDM Parameters on Stainless Steel & En41b” [J]. Procedia Engineering, 2014, 97:1551–1564.

[15] Anish Kumar, Vinod Kumar, and Jatinder Kumar, “Microstructure Analysis And Material Transformation Of Pure Titanium And Tool Wear Surface After Wire Electric Discharge Machining Process” Machining Science and Technology, Taylor & Francis Group, LLC ISSN: 1091-0344 print/1532-2483 online.

[16] Kumar, A.; Kumar, V.; Kumar, J. (2013b) “Multi-response optimization of process parameters based on response surface methodology for pure titanium using WEDM process”. International Journal of Advance Manufacturing Technology, DOI: 10.1007/s00170-013-4861-9.

[17] Hascalik, A.; Caydas, U. (2007 a) “Electrical Discharge Machining of titanium alloy (Ti-6Al-4V)”. Applied Surface Science, 253: 9007–9016.

[18] Lee, S.H.; Li, X.P. (2003) “Study of the surface integrity of the machined work piece in the EDM of tungsten carbide”. Journal of Material Processing Technology, 139: 315–321.

[19] Teepu Sultan, Anish Kumar, and Rahul Dev Gupta, “Material Removal Rate, Electrode Wear Rate, and Surface Roughness Evaluation in Die Sinking EDM with Hollow Tool through Response Surface Methodology”, Hindawi Publishing Corporation, International Journal of Manufacturing Engineering, Volume 2014, Article ID 259129, 16 pages.

[20] Haron, C. H. C.; Jawaid, A. (2005) “The effect of machining on surface integrity of titanium alloy Ti-6Al-4 V”. Journal of Material Processing Technology, 166: 188–192.

[21] Bradshaw GB, Menly WC; US Patent 2360844 (1944).

[22] Freedman B, Pryde EH, Mounts T L; “Variables affecting the yield of Fatty Esters from Transesterified Vegetable Oils”; J. Am Oil Chem Soc; 1984; 61 (10): 1638 – 43.

[23] Freeman B, Butterfield R. O. and Pryde E.H., “Transesterification Kinetics of Soybean Oil”, J. Am. Oilchem. Soc. 1986; 63:1375.

[24] Haas, M.J., Scott, K.M., Marmer, W.N. et al. “In situ Alkaline Transesterification: An Effective Methodfor the Production of Fatty Acid Esters from Vegetable Oils”, J Amer Oil Chem Soc (2004) 81: 83.

[25] Rizvi, Syed Asghar Husain, and Sanjay Agarwal. "An investigation on surface integrity in EDM process with a copper tungsten electrode.” Procedia CIRP 42 (2016): 612-617.

[26] Antar, Mohammad, et.al. "Surface integrity evaluation of modified EDM surface structure." Procedia Cirp 68 (2018): 308-312.

[27] Younis, Mona A., et.al. "Effect of electrode material on electrical discharge machining of tool steel surface." Ain Shams Engineering Journal 6.3 (2015): 977-986.

[28] Khan, Md Ashikur Rahman, M. M. Rahman, and Md Saifur Rahman. "Optimal set-up and surface finish characteristics in electrical discharge machining on Ti-5Al-2.5 Sn using graphite." Perspectives in Science 8 (2016): 440-443.

[29] Mascaraque-Ramirez, C., and P. Franco. "Experimental study of surface finish during electro-discharge machining of stainless steel." Procedia engineering 132 (2015): 679-685.

[30] Klocke, Fritz, et. al. "Investigations on surface integrity of heat treated 42CrMo4 (AISI 4140) processed by sinking EDM." Procedia CIRP 42 (2016): 580-585.

Name *

Email Address *

Affiliation *

Comments *

Security Code *

CAPTCHA Image

Journal of Computational & Applied Research in Mechanical Engineering (JCARME)

Volume 11, Issue 1
September 2021
Pages 47-56

Files

Cited by

Share

How to cite

Statistics

Article View: 1,057
PDF Download: 528