Study and Experimentation for Process Parameters on Inconel 904L by using EDM

Vishwnath Tripathi, SIIT gorakhpur; Shani Kumar ,MMMUT; Sangam Kumar ,SIIT; Sumit Verma ,SIIIT

EDM, Spark on Time, Inconel 904L

EDM is an important and commercial method of machining very tough and brittle electrically conductive materials. It is broadly used in the process of making moulds and dies and sections of complex geometry and complicated shapes. The work piece material selected in this experiment is Inconel 904L taking because it’s widely usage in industrial applications. The input variables are Voltage, current and pulse on time. Taguchi L9 orthogonal array is applied to optimize the processes variable. The effect of the variable parameters mentioned above upon machining characteristics such as Material Removal Rate (MRR) and Surface Roughness (SR) is studied and investigated. The obtained results showed that current was the most significant parameter followed by voltage and pulse on time for the Material removal rate (MRR) and, for Surface roughness (Ra) current was the most significant parameter followed by pulse on time and voltage. The selected electrode material is cupper and duty cycle is 90% during the whole experiment. Keyword: EDM, Inconel, MRR and spark current.
    [1] Garg, R. K., et al. "Review of research work in sinking EDM and WEDM on metal matrix composite materials." The International Journal of Advanced Manufacturing Technology 50.5 (2010): 611-624. [2] Wang, Che Chung, and Biing Hwa Yan. "Blind-hole drilling of Al 2 O 3/6061Al composite using rotary electro-discharge machining." Journal of materials processing technology 102.1 (2000): 90-102. [3] Puertas, I., C. J. Luis, and L. Alvarez. "Analysis of the influence of EDM parameters on surface quality, MRR and EW of WC–Co." Journal of Materials Processing Technology 153 (2004): 1026-1032. [4] Torres, A., C. Luis, and I. Puertas. "Analysis of the influence of EDM parameters on surface finish, material removal rate, and electrode wear of an INCONEL 600 alloy." International Journal of Advanced Manufacturing Technology 80 (2015). [5] Asif Iqbal, A. K. M., and Ahsan Ali Khan. "Optimization of process parameters on EDM milling of stainless steel AISI 304." Advanced Materials Research. Vol. 264. Trans Tech Publications, 2011. [6] Liu, Kun, Bert Lauwers, and Dominiek Reynaerts. "Process capabilities of Micro-EDM and its applications." The International Journal of Advanced Manufacturing Technology 47.1 (2010): 11-19. [7] Singh, Shankar, S. Maheshwari, and P. C. Pandey. "Some investigations into the electric discharge machining of hardened tool steel using different electrode materials." Journal of materials processing technology 149.1 (2004): 272-277. [8] Bhattacharyya, B., S. Gangopadhyay, and B. R. Sarkar. "Modelling and analysis of EDM ED job surface integrity." Journal of Materials Processing Technology 189.1 (2007): 169-177. [9] Dhar, Sushant, et al. "Mathematical modeling of electric discharge machining of cast Al–4Cu–6Si alloy–10wt.% SiC P composites." Journal of materials processing technology 194.1 (2007): 24-29. [10] Rao, P. Srinivasa, et al. "Parametric study of electrical discharge machining of AISI 304 stainless steel." International Journal of engineering science and technology 1.2 (2010): 3535-3550. [11] MM, Rahman, et al. "Experimental investigation into electrical discharge machining of stainless steel 304." Journal of Applied Sciences 11.3 (2011): 549-554. [12] Gao, Qing, et al. "Parameter optimization model in electrical discharge machining process." Journal of Zhejiang University-Science A 9.1 (2008): 104-108. [13] Tomadi SH, Hassan MA, Hamedon Z, Daud R, Khalid AG. Analysis of the influence of EDM parameters on surface quality, material removal rate and electrode wear of tungsten carbide. InProceedings of the International MultiConference of Engineers and Computer Scientists 2009 Mar 18 (Vol. 2, pp. 18-20). [14] Asif Iqbal, A. K. M., and Ahsan Ali Khan. "Optimization of process parameters on EDM milling of stainless steel AISI 304." Advanced Materials Research. Vol. 264. Trans Tech Publications, 2011. [15] Shani Kumar and Mr. Sunil Kumar Yadav, “Influence of electrical parameters on the response parameter for EDM process: A Review” National Conference on Futuristics in Mechanical Engineering (FME – 2016), ISBN: 978-93- 84224-83- 7, pp 263-266.
Paper ID: GRDJEV02I060088
Published in: Volume : 2, Issue : 6
Publication Date: 2017-06-01
Page(s): 130 - 140