EFFECT ON PERFORMANCE MEASURES DURING DIE SINKER EDM OF AMMC BY EXTERNAL DIELECTRIC FLUSHING SYSTEM

Authors

  • Akhil Khajuria Department of Mechanical Engineering, NIT Jalandhar, 144011, Punjab, India.
  • Ankush Raina School of Mechanical Engineering, SMVD University, Katra, 182320, J&K, India.
  • Modassir Akhtar CSIR - National Metallurgical Laboratory, Jamshedpur, 831007, Jharkhand, India.

DOI:

https://doi.org/10.53555/eijse.v4i1.136

Keywords:

Die-sinker EDM, aluminium metal matrix composite, dielectric flushing pressure, material removal rate, tool wear rate, surface roughness

Abstract

One of the important parameter in electrical discharge machining (EDM) of aluminium metal matrix composites is dielectric flushing pressure which is often not given attention due to its inbuilt presence inside the EDM set-up. Present work investigated the effect on material removal rate, tool wear rate and surface roughness with the variation of dielectric flushing pressure during EDM of 10wt.%Al2O3/AA2014. The composite was manufactured via mechanical stir casting route. For carrying out experiments on the available die sinker EDM to observe the influence of flushing pressure, a new external flushing system was developed to achieve high pressure.  Kerosene oil was used as dielectric oil instead of EDM oil supplied with the machine. Only pulse current (I) was varied as an EDM input parameter considered whereas voltage (V), pulse on time (Ton) and pulse off time (Toff) were kept constant. It is found that material removal rate invariably increases with an increase in flushing pressure of dielectric oil whereas surface roughness behaves opposite. However, no significant differences are observed for tool wear rate.

References

. Ramnath, B. Vijaya, et al. "Aluminium metal matrix composites-a review." Rev. Adv. Mater. Sci 38 (2014): 55-60.

. Kala, Himanshu, K. K. S. Mer, and Sandeep Kumar. "A Review on Mechanical and Tribological Behaviours of Stir Cast Aluminum Matrix Composites." Procedia Materials Science 6 (2014): 1951-1960.

. Kumar, Akshay, and Anubhav Singh Parihar. "A review on mechanical and tribological behaviours of stir cast copper–silicon carbide matrix composites." International Research Journal of Engineering and Technology 3.4 (2016): 2658-64.

. Anand, Ankush, et al. "Natural Systems and Tribology-Analogies and Lessons." Materials Today: Proceedings 4.4 (2017): 5228-5232.

. Rozenek, Marek, et al. "Electrical discharge machining characteristics of metal matrix composites." Journal of Materials Processing Technology 109.3 (2001): 367-370.

. Habib, Sameh S. "Study of the parameters in electrical discharge machining through response surface methodology approach." Applied Mathematical Modelling 33.12 (2009): 4397-4407.

. Singh, P. Narender, et al. "Electric discharge machining of Al–10% SiCP as-cast metal matrix composites." Journal of materials processing technology 155 (2004): 1653-1657.

. Kumar, Sanjeev, et al. "Surface modification by electrical discharge machining: A review." Journal of Materials Processing Technology 209.8 (2009): 3675-3687.

. Ho, K. H., and S. T. Newman. "State of the art electrical discharge machining (EDM)." International Journal of Machine Tools and Manufacture 43.13 (2003): 1287-1300.

. Bayramoglu, M., and A. W. Duffill. "Manufacturing linear and circular contours using CNC EDM and frame type tools." International Journal of Machine Tools and Manufacture 35.8 (1995): 1125-1136.

. Kunieda, Masanori, and Hideyuki Muto. "Development of multi-spark EDM." CIRP Annals Manufacturing Technology 49.1 (2000): 119-122.

. Mohri, Naotake, et al. "Mirror-like finishing by EDM (multi divided electrode method)." Proceedings of the Twenty-Fifth International Machine Tool Design and Research Conference. Palgrave, London, 1985.

. Kunieda, M., S. Furuoya, and N. Taniguchi. "Improvement of EDM efficiency by supplying oxygen gas into gap." CIRP Annals-Manufacturing Technology 40.1 (1991): 215-218.

. Snoeys, R., F. Staelens, and W. Dekeyser. "Current trends in non-conventional machining techniques." Ann. CIRP 35.2 (1986): 467-480.

. Staelens, Filip, and Jean-Pierre Kruth. "A computer integrated machining strategy for planetary EDM." CIRP Annals 38.1 (1989): 187-190.

. Dauw, D., and R. Snoeys. "On the derivation and application of a real-time tool wear sensor in EDM." CIRP Annals-Manufacturing Technology 35.1 (1986): 111-116.

. Tsai, H. C., B. H. Yan, and F. Y. Huang. "EDM performance of Cr/Cu-based composite electrodes." International Journal of Machine Tools and Manufacture 43.3 (2003): 245-252.

. Gangadhar, A., M. S. Shunmugam, and P. K. Philip. "Surface modification in electro discharge processing with a powder compact tool electrode." Wear 143.1 (1991): 45-55.

. Mohri, N., et al. "Metal surface modification by electrical discharge machining with composite electrode." CIRP Annals-Manufacturing Technology 42.1 (1993): 219-222.

. Tsunekawa, Yoshiki, et al. "Surface modification of aluminium by electrical discharge alloying." Materials Science and Engineering: A 174.2 (1994): 193-198.

. Simao, J., et al. "Workpiece surface modification using electrical discharge machining." International Journal of Machine Tools and Manufacture 43.2 (2003): 121-128.

. Hassan, A. M. "An investigation into the surface characteristics of burnished cast Al Cu alloys." International Journal of Machine Tools and Manufacture 37.6 (1997): 813-821.

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Published

2018-03-27

Issue

Vol. 4 No. 1 (2018): EPH - International Journal of Science And Engineering (ISSN: 2454 - 2016)

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Articles

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