Investigations on Wire Electric Discharge Machining and Mechanical Behavior of Al 7075/Nano-SiC Composites
- 37 Downloads
In this research work, the impact of WEDM parameters like gap voltage, wire feed, pulse-off time, and pulse-on time on surface roughness (Ra) and MRR (material removal rate) in metal matrix nanocomposites that are composed of Al7075 and nano-silicon carbide (SiC) with the particle dimension of 50 nm is investigated. The aluminum 7075 is reinforced by using nano-SiC with various weight percentages (2.0%, 4.0%, and 6.0 wt%). Magnesium (1.5%) is incorporated to improve the wettability of the MMNCs. The experimentations are studied by means of DOE technique applying L9 OA. The final outcomes were examined using response graphs. And also, the final outcomes are compared with unreinforced aluminum 7075. From the present analysis, it is determined that various blends of WEDM parameters are necessitated in order to accomplish lower Ra and higher MRR for Al7075/SiC nanocomposites. Basically, it is noticed that by increasing wt% of SiC leads to increased Ra and decreased MRR. The outcomes of these investigations are useful for aerospace, automobile industries to select suitable wire EDM parameters to machine MMNCs of Al7075 reinforcement with SiC nanoparticles at different weight portions.
KeywordsAl 7075 Nano-SiC WEDM MRR Ra
The corresponding author wishes to thank the Department of Mechanical Engineering, Siddartha Institute of Science and Technology (Autonomous), Puttur, India, for providing facilities and necessary support in conducting experiments and discussion in the research work.
Compliance with Ethical Standards
Conflicts of interest
The authors declare that there is no conflict of interest.
- 6.H.K. Garg, K. Verma, A. Manna, R. Kumar, Hybrid Metal Matrix Composites and a further improvement in their machinability—a review. Int. J. Latest Res. Sci. Technol. 1(1), 36–44 (2012)Google Scholar
- 7.B.R. Thella, A.G. Krishna, Selection of optimal process parameters in WEDM while machining Al7075/SiCp metal matrix composites. Int. J. Adv. Manuf. Technol. 73(1–4), 299–314 (2014)Google Scholar
- 9.B.S. Yigezu, P.K. Jha, M.M. Mahapatra, The key attributes of synthesizing ceramic particulate reinforced Al-based matrix composites through stir casting process: a review. Mater. Manuf. Processes 28(9), 969–979 (2013)Google Scholar
- 10.Y.C. Shin, C. Dandekar, in Mechanics and modeling of Chip Formation in Machining of MMC, ed. by J.P. Davim, Machining of Metal Matrix Composites (Springer-Verlag London Limited, 2012) https://doi.org/10.1007/978-0-85729-938-3-1
- 18.M. Hourmand, S. Farahany, A.A.D. Sarhan, M.Y. Noordin, Investigating the electrical discharge machining (EDM) parameter effects on Al-Mg2Si metal matrix composite (MMC) for high material removal rate (MRR) and less EWR–RSM approach. Int. J. Adv. Manuf. Technol. 77, 831–838 (2015)CrossRefGoogle Scholar
- 22.D.U. Kumar, K. Rao, S. Rajesh, Modelling of process parameters on surface roughness with wire EDM on aluminium metal matrix composite. Int. J. Mech. Eng. Comput. Appl. 3(3), 744–748 (2015)Google Scholar
- 24.P. Shandilya, P.K. Jain, N.K. Jain, Prediction of surface roughness during wire electrical discharge machining of SiCp/6061 Al metal matrix composite. Int. J. Ind. Syst. Eng. 12(3), 301–315 (2012)Google Scholar
- 25.H. Singh, H. Kumar, Review on wire electrical discharge machining (WEDM) of aluminum matrix composites. Int. J. Mech. Product. Eng., ISSN: 2320-2092 3(10) (2015)Google Scholar
- 31.A. Sharma, M.P. Garg, K.K. Goyal, A. Kumar, Investigation of wire electrical discharge machining of ZrSiO4p/Al 6063 MMC. Int. J. Mach. Mach. Mater. 18(4), 392–411 (2016)Google Scholar