Commenced in January 2007
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Edition: International
Paper Count: 31819
##### Mathematical Modeling of Machining Parameters in Electrical Discharge Machining of FW4 Welded Steel

Authors: M.R.Shabgard, R.M.Shotorbani

Abstract:

FW4 is a newly developed hot die material widely used in Forging Dies manufacturing. The right selection of the machining conditions is one of the most important aspects to take into consideration in the Electrical Discharge Machining (EDM) of FW4. In this paper an attempt has been made to develop mathematical models for relating the Material Removal Rate (MRR), Tool Wear Ratio (TWR) and surface roughness (Ra) to machining parameters (current, pulse-on time and voltage). Furthermore, a study was carried out to analyze the effects of machining parameters in respect of listed technological characteristics. The results of analysis of variance (ANOVA) indicate that the proposed mathematical models, can adequately describe the performance within the limits of the factors being studied.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1071792

References:

[1] www.corewire.com
[2] Fonda, P., Wang, Z., Yamazaki, K, Akutsu, Y., 2007, A fundamental study on Ti-6Al-4V-s thermal and electrical properties and their relation to EDM productivity, J. Mater. Process. Technol.,
[3] Mukherjee, I., Ray, P.K., 2006, A review of optimization technique in metal cutting process, Computer & Industrial Engineering, 50: 15-34.
[4] Hewidy, M.S., El-Taweel, T.A., El-Safty, M.F., 2005, Modelling the machining parameters of wire electrical discharge machining of Inconel 601 using RSM, J. Mater. Process. Technol., 169: 328-336.
[5] Puertas, I., Luis, C.J., ├ülvarez, A., 2004, Analysis of the influence of EDM parameters on surface quality, MRR and EW of WC-Co, J. Mater. Process. Technol., 153-154: 1026-1032.
[6] Puertas, I., Luis, C.J., 2004, A study on the electrical discharge machining of conductive ceramics, J. Mater. Process. Technol., 153- 154: 1033-1038.
[7] Puertas, I., Luis, C.J., Villa, G., 2005, Spacing roughness parameters study on the EDM of silicon carbide, J. Mater. Process. Technol., 164- 165:1590-1596.
[8] Luis, C.J., Puertas, I., 2007, Methodology for developing technological tables used in EDM processes of conductive ceramics, J. Mater. Process. Technol., 189: 301-309.
[9] Khoshkish, Ashtiani, Goreyshi, Effects of Tool electrode material on electrical discharging machining process of hardened tool AISI D3, Iran Conference of Manufacturing Engineering
[10]George, P.M., Raghunath, B.K., Manocha, L.M., Warrier, A.M., 2007, EDM machining of carbon-carbon compositeÔÇöa Taguchi approach, J. Mater. Process. Technol., 153-154: 920-924.
[11]www.MVI.com
[12]Montgomery, D.C., 1997, Design and Analysis of Experiments, Wiley, NewYork.