Analysis of Wear Rate of Tool Materials while Drilling Inconel 718 Super Alloy using EDM
Keywords:
Brass, Copper, Drilling, EDM, Graphite, Inconel 718, Tool wear indexAbstract
In the present study, drilling of Inconel 718 using EDM was experimented with industrial/commercial electrodes of two different materials - brass and copper. The process parameters selected for the study were current, voltage, pulse on-time, and pulse off-time. The performance of electrode was analyzed by measurement of tool wear rate (TWR) i.e. electrode wear Ratio (EWR). The electrodes having inner diameter of 0.5mm and outer diameter of 2 mm and length of 50 mm. The experimental results indicated that copper electrode outperformed brass electrodes with regard to TWR. Thus among the two electrode materials tested, copper is the best choice of electrode material with respect to TWR.
References
1. Wei YX. Experimental study on the machining of a shaped hole in Ni-based super-heat-resistant alloy. J Mater Process Technol 2002; 129: 143-7.
2. Tam SC, Yeo CY, Jana S, et al. Optimization of laser deep-hole drilling of Inconel 718 using the Taguchi method. J Mater Process Technol 1993; 37: 741-57.
3. Kuppan P, Rajadurai A, Narayanan S. Influence of EDM process parameters in deep hole drilling of Inconel 718. International Journal Advance Manufacturing Technology 2008; 38: 74-84.
4. Sharman ARC, Hughes JI, Ridgway K. Workpiece surface integrity and tool life issues when turning Inconel 718 nickel based superalloy. Mach Sci Technol 2004; 8(3): 399-414.
5. Luis CJ, Puertas I, Villa G. Material removal rate and electrode wear study on the EDM of silicon carbide. Journal of Materials Processing Technology 2005: 164-165, 889-896.
2. Tam SC, Yeo CY, Jana S, et al. Optimization of laser deep-hole drilling of Inconel 718 using the Taguchi method. J Mater Process Technol 1993; 37: 741-57.
3. Kuppan P, Rajadurai A, Narayanan S. Influence of EDM process parameters in deep hole drilling of Inconel 718. International Journal Advance Manufacturing Technology 2008; 38: 74-84.
4. Sharman ARC, Hughes JI, Ridgway K. Workpiece surface integrity and tool life issues when turning Inconel 718 nickel based superalloy. Mach Sci Technol 2004; 8(3): 399-414.
5. Luis CJ, Puertas I, Villa G. Material removal rate and electrode wear study on the EDM of silicon carbide. Journal of Materials Processing Technology 2005: 164-165, 889-896.
Published
2019-01-08
Issue
Section
Research Article
