Comparing and Optimization of Material Removal Rate of Cryogenically Treated and Untreated Copper Tools Using EDM
DOI:
https://doi.org/10.51983/ajeat-2016.5.1.771Keywords:
Advanced materials, EDM, Cryogenic treatment, Taguchi methodology, Optimization, MRRAbstract
Super alloys are advanced engineering materials, having high potential for aerospace and defence industries. Inconel 625, a nickel-chromium heat resistant alloy, finds its applications in the manufacturing of aerospace fasteners, gas turbine engineering and heat treatment equipment. In this study, electric discharge machining is used for making holes on inconel 625. Three control factors namely pulse current, pulse on time and flushing pressure having three levels each be taken into consideration and material removal rate (MRR) was taken as a response measure. Experiments were based on (L18 21×33) orthogonal array of Taguchi’s methodology. Results analyzed showed that MRR increased as pulse current and tool electrode rotation increased. MRR was more for tool electrodes cryogenically treated than tool electrodes untreated.
References
K.P. Rajurkar and Z.Y. Wang, "Cryogenic machining of hard to cut materials," Wear, vol. 239, pp. 168-175, 2000.
P.I. Patil and R.G. Tated, "Comparison of effects of cryogenic treatment on different types of steels: A review," in IJCA Proceedings on International Conference in Computations Intelligence, 2012.
H. Hocheng and Y.H. Guu, "Effect of work piece rotation on machinability during EDM," Journal of Material and Manufacturing Processes, vol. 16, pp. 91-101, 2001.
B.H. Yan, C.C. Wang, W.D. Liu, and F.Y. Huang, "Machining Characteristics of Al2O3/6061Al Composite using Rotary EDM with a Disk like Electrode," Int J Adv Manuf Technol, vol. 16, pp. 322–333, 2000.
K.H. Ho and S.T. Newman, "State of the art electrical discharge machining," International Journal of Machine Tool and Manufacture, vol. 43, pp. 1287-1300, 2003.
T.R. Newton, S.N. Melkotea, T.R. Watkins, R.M. Trejo, and L. Reister, "Investigation of the effect of process parameters on the formation and characteristics of recast layer in wire-EDM of Inconel 718," Materials Science and Engineering, vol. 513–514, pp. 208–215, 2009.
R. Singh and K. Singh, "Enhancement of tool material machining with cryogenic treatment: A Review," in Proceedings of the International Conference on Industrial Engineering and Operations Management, Dhaka, Bangladesh, pp. 1-5, 2010.
F.J. da Silva, S.D. Franco, A.R. Machado, E.O. Ezugwu, and A.M. Souza Jr., "Performance of cryogenically treated HSS tools," Wear, vol. 261, pp. 674–685, 2006.
V. Firouzdor, E. Nejati, and F. Khomamizadeh, "Effect of deep cryogenic treatment on wear resistance and tool life of M2 HSS drill," Journal of Materials Processing Technology, vol. 206, pp. 467–472, 2008.
K. Vadivel and R. Rudramoorthy, "Performance analysis of cryogenically treated coated carbide inserts," Int J Adv Manufacturing Technology, vol. 42, pp. 222–232, 2009.
A. Akhbarizadeh and M.A. Golozar, "Effects of Austenizing Time on Wear Behavior of D6 Tool Steel After Deep Cryogenic Treatment," Journal of Iron and Steel Research International, vol. 16, no. 6, pp. 29-32, 2009.
Y.F. Tzeng, "Development of a flexible high-speed EDM technology with geometrical transform optimization," Journal of Materials Processing Technology, vol. 203, pp. 355–364, 2008.
R.K. Roy, A Primer on Taguchi Method, Van Nostrand Reinhold, New York.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2016 The Research Publication
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
