Parameter optimization of micro ECDM process of borosilicate glass

Parameter optimization of micro ECDM process of borosilicate glass

Mohit VishnoiA.N. Veerendra Kumar S. Senthil Murugan 

Department of Mechanical Engineering, J S S Academy of Technical Education, Noida 201301, India

Department of Mechanical Engineering, Mepco Schlenk Engineering College, Sivakasi 626005, India

Corresponding Author Email:
April 25 2018
June 3 2018
30 June 2018
| Citation



Electro Chemical Discharge Machining Process (ECDM) is a prominent hybrid machining process used in distinctness machining of hard and brittle non-conducting materials. ECDM has been exploited to fabricate micro-holes in non- conductive brittle materials. An experiment has been conducted on ECDM for micro drilling operation on borosilicate glass material according to the Taguchi Orthogonal Array (L9) technique in order to ascertain the effect of certain variables in the same manner with material removal rate (MRR) & tool wear rate (TWR). In superintending the machining performance, signal to noise ratio (S/N ratio) was calculated to find out the involvement in the main machining variables, such as applied voltage, electrolyte concentration and inter electrode gap. During the experiments, the non-conducting and highly brittle borosilicate glass material is used as a work-piece and NaOH as electrolyte solution. In addition to that, Graphite and Tungsten were used as cathode and anode respectively. In this research of Taguchi method was utilized to optimize the process variables which affect MRR and TWR. From main effect plot through Minitab software, it turns out that the inter-electrode gap has the supreme affect on MRR and TWR.


electro chemical discharge machining (ECDM), material removal rate (MRR), tool wear rate (TWR), taguchi method

1. Introduction
2. Experimental Details
3. Measurement of Machining Performance
4. Process Parameter & Level Selection
5. Experimentation
6. Optimization of Process Parameters Using Taguchi Method
7. Results and Discussion
8. Conclusions

[1] Bhattacharya B, Doloi BN, Sorkhel SK. (1999). Experimental investigation into electro-chemical discharges machining (ECDM) of non- conductive ceramic materials. Journal of Material Processing Technology 95: 145-154.

[2] Jain VK, Adhikary S. (2008). On the mechanism of material removal in electrochemical spark Machining of quartz under different polarity conditions. Journal of Materials Processing Technology 200: 460–470.

[3] Raghuram V, Pramila T, Srinivasa YG, Narayanasamy K. (1995). Effect of the circuit parameterson the electrolytes in the electrochemical discharge phenomenon. Journal of Materials Processing Technology 52: 301–318.

[4] Kulkarni A., Sharan R, Lal GK. (2002). An experimental study of discharge mechanism in Electrochemical discharge machining. International Journal of Machine Tools and Manufacture 42: 1121–1127.

[5] McGeough AB, Khayry M, Munro W. (1983). Theoretical and experimental investigation of the Relative effects of spark erosion and electrochemical dissolution in electrochemical arc machining. Annals of the CIRP 31: 113–118.

[6] Yang CK. (2010). Effect of surface roughness of tool electrode materials in ECDM performance. International Journal of Machine Tools & Manufacture 50: 1088–1096.

[7] Cao XD. (2009). Micro-structuring of glass with features less than 100µm by electrochemical discharge machining. Precision Engineering 33: 459–465.

[8] Jana D. (2012). Micro-texturing channel surfaces on glass with spark assisted chemical engraving. International Journal of Machine Tools & Manufacture 57: 66–72.

[9] Yang CK. (2011). Enhancement of ECDM efficiency and accuracy by spherical tool electrode. International Journal of Machine Tools & Manufacture 51: 528–535.

[10] Basak I, Ghosh A. (1997). Mechanism of material removal in electrochemical discharge machining: a theoretical model and experimental verification. Journal of Materials Processing Technology 71: 350–359.

[11] Coteaţă M. (2008). Electrochemical discharge machining of small diameter holes. International Journal of Material Forming 1: 1327-1330.

[12] Indrajit S, Mukherjee S, Biswas K. (2017). A review of energy harvesting technology and its potential applications. Environmental and Earth Sciences Research Journal 4(2): 33-38.