Abstract
This work was undertaken to study the effect of some of the main electro-discharge machining process parameters such as flushing pressure, current, pulse-on-time, and vibration on the tool wear rate (TWR), and metal removal rate (MRR) of Al 6061 alloy with 10 wt.-% TiB2p (titanium boride particulate) composites. The response surface methodology was used to determine the most important criteria to maximize the MRR and minimize the TWR. The experimental procedure was designed based on second-order rotatable central composite design. Sensitivity analysis was used to identify the important criteria and classify them by their order of importance in model validation. Many efforts were made to compare the calculated output of the data obtained. Pulse-on-time sensitivity was found to exert a more significant effect on MRR and TWR than did other criteria. The surface plots were prepared for both MRR and TWR. MRR value increases with an increase in peak current. It occurs in a workpiece that transfers the heat directly to the workpiece, and these functions increase TWR. This occurs because of an increase in MRR and a decrease in TWR.
References
1 P. M.George, B. K.Raghunath, L. M.Manocha, and A. M.Warrier: EDM machining of carbon-carbon composite-a Taguchi approach, Journal of Materials Processing Technology145 (2004), No. 1, pp. 66–7110.1016/s0924-0136(03)00863-xSearch in Google Scholar
2 I.Puertas, C. J.Luis, and L.Álvarez: Analysis of the influence of EDM parameters on surface quality, MRR and EW of WC–Co, Journal of Materials Processing Technology153-154 (2004), pp. 1026–103210.1016/j.jmatprotec.2004.04.346Search in Google Scholar
3 D.Kanagarajan, R.Karthikeyan, K.Palanikumar, and J. P.Davim: Optimization of electrical discharge machining characteristics of WC/Co composites using non-dominated sorting genetic algorithm (NSGA-II), The International Journal of Advanced Manufacturing Technology36 (2007), No. 11-12, pp. 1124–113210.1007/s00170-006-0921-8.Search in Google Scholar
4 S. S.Habib: Study of the parameters in electrical discharge machining through response surface methodology approach, Applied Mathematical Modelling33 (2009), No. 12, pp. 4397–440710.1016/j.apm.2009.03.021.Search in Google Scholar
5 C. J.Luis, I.Puertas, and G.Villa: Material removal rate and electrode wear study on the EDM of silicon carbide, Journal of Materials Processing Technology164-165 (2005), pp. 889–89610.1016/j.jmatprotec.2005.02.045.Search in Google Scholar
6 K. T.Chiang, F. P.Chang, D. C.Tsai: Modeling and analysis of the rapidly resolidified layer of SG cast iron in the EDM process through the response surface methodology, Journal of Materials Processing Technology182 (2007), No. 1–3, pp. 525–53310.1016/j.jmatprotec.2006.09.012.Search in Google Scholar
7 B.Bhattacharyya, S.Gangopadhyay, B. R.Sarkar: Modelling and analysis of EDMED job surface integrity, Journal of Materials Processing Technology189 (2007), No. 1–3, pp. 169–17710.1016/j.jmatprotec.2007.01.018.Search in Google Scholar
8 K.Maji, D. K.Pratihar: Modeling of Electrical Discharge Machining Process Using Conventional Regression Analysis and Genetic Algorithms, Journal of Materials Engineering and Performance20 (2010), No. 7, pp. 1121–112710.1007/s11665-010-9754-6.Search in Google Scholar
9 M. N.Das, N. C.Giri: Design and Analysis of Experiments, 2nd Ed., Wiley, New York, USA (2004)Search in Google Scholar
10 C.Senthilkumar, G.Ganesan: Electrical discharge surface coating of EN38 Steel with WC/Ni composite electrode, Journal of Advanced Microscopy Research10 (2015), No. 3, pp. 202–20710.1166/jamr.2015.1263Search in Google Scholar
11 S.Magibalan, P.Senthilkumar, R.Palanivelu, C.Senthilkumar, N.Shivasankaran, M.Prabu: Dry sliding behavior of aluminum alloy 8011 with 12 % fly ash composites, Materials Research Express5 (2018), No. 5, pp. 056505–05651110.1088/2053-1591/aabf46.Search in Google Scholar
12 S.Magibalan, P.Senthilkumar, C.Senthilkumar, R.Palanivelu, M.Prabu: Dry sliding behavior of aluminum alloy 8011 with 4 % fly ash, Materials Testing60 (2018), No. 2, pp. 209–21410.3139/120.111126.Search in Google Scholar
13 S.Magibalan, P.Senthilkumar, C.Senthilkumar, R.Palanivelu, and M.Prabu: Dry sliding behavior of the aluminum alloy 8011 composite with 8 % fly ash, Materials Testing60 (2018), No. 7–8, pp. 777–78210.3139/120.111213.Search in Google Scholar
14 K.Palanikumar, B.Latha, V. S.Senthilkumar, R.Karthikeyan: Multiple performance optimization in machining of GFRP composites by a PCD tool using non-dominated sorting genetic algorithm (NSGA-II), Metals and Materials International,15 (2009), No. 2, pp. 249–25810.1007/s12540-009-0249-7.Search in Google Scholar
15 M.Prabu, G.Ramadoss, P.Narendersingh, T. V.Christy, and V. V.Eswaran: Electrical discharge machining of Al- TiB2 with a low-frequency vibrating tool, Science and Engineering of Composite Materials21 (2014), No. 3, pp. 445–45210.1515/secm-2013-0023.Search in Google Scholar
16 R.Boopathi, S.Sundaram, C.Senthilkumar, M.Prabu: Effect of machining characteristics of nano-TiC mixed dielectric fluids on Inconel 718 in the EDM process, Materials Testing 59, No.4 (2017), pp. 402–40810.3139/120.111002.Search in Google Scholar
17 R.Ramakrishnan, L.Karunamoorthy: Modeling and multi-response optimization of Inconel 718 on machining of CNC WEDM process, Journal of Materials Processing Technology207 (2008), No. 1–3, pp. 343–34910.1016/j.jmatprotec.2008.06.040.Search in Google Scholar
18 A. R.Ahamed, P.Asokan, S.Aravindan: EDM of hybrid Al–SiCp–B4Cp and Al–SiCp–Glassp MMCs, The International Journal of Advanced Manufacturing Technology44 (2009), No. 5–6, pp. 520–52810.1007/s00170-008-1839-0.Search in Google Scholar
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