Analysis on the effect of ECDM process parameters during micro-machining of glass using genetic algorithm
DOI:
https://doi.org/10.15282/jmes.12.3.2018.13.0344Keywords:
Genetic algorithm, micro-ECDM, micro-slot, spring-feed, surface roughnessAbstract
Electro chemical discharge hybrid machining process involves in micro-machining to cut micro- channel, micro-profile as well as micro-slot, blind hole on hard materials like ceramic, quartz and glass. Experimentation has been performed using an indigenously developed micro-ECDM set up in which pressurized automated spring feeding mechanism and cam follower system is used to control the working gap. This paper emphasis to the influences of different process parameters like applied voltage (V), electrolyte concentrations (wt%), pulse frequency (Hz) and duty ratio (%) on different machining performance characteristics such as Material Removal Rate (MRR), Overcut (OC), Surface Roughness (Ra) and Heat Affected Zone (HAZ) during micro-channel cutting on glass. The empirical mathematical model has been validated by the analysis of variances. This research paper rendered the suitable optimal parametric condition during single as well as multi objective optimization using genetic algorithm (GA). Applied voltage and duty ratio has dominating role to increase MRR, OC, HAZ and surface roughness. Machining Depth increased using automated spring feeding with Cam-follower mechanism and achieved machining depth of 1.35mm. This research paper also presented the SEM analysis of micro-channel to find out the debris and other particles.
References
Basak, I.; Ghosh, A. Mechanism of spark generation during electrochemical discharge machining: a theoretical model and experimental verification. Journal of Materials Processing Technology.1996;62:46-53.
Bhattacharyya, B.; Doloi, B.; Sorkhel, S.K. Experimental investigations into electrochemical discharge machining (ECDM) of non-conductive ceramic materials. Journal of Materials Processing Technology.1999;95:145-154.
Jain, V.K.; Dixit, P.M.; Pandey, P.M. On the analysis of the electrochemical spark machining process. International Journal of Machine Tools & Manufacture.1999;39(1):165–186.
Mediliyegedara, T.K.K.R., De Silva, A.K.M., Harrison, D.K., McGeough, J.A. New developments in the process control of the hybrid electro chemical discharge machining (ECDM) process. Journal of Materials Processing Technology.2005;167:338–343.
Wüthrich, R.; Fascio, V. Machining of non-conducting materials using electrochemical discharge phenomenon—an overview. International Journal of Machine Tools & Manufacture. 2005; 45(9):1095–1108.
Sarkar, B.R.; Doloi, B.; Bhattacharyya, B. Parametric analysis on electrochemical discharge machining of silicon nitride ceramic. International Journal Advanced Manufacturing Technology. 2006; 28(9), 873-881.
Kim, D.J., Ahn, Y., Lee, S.H. and Kim, Y.K. Voltage pulse frequency and duty ratio effects in an electrochemical discharge micro-drilling process of Pyrex glass. International Journal of Machine Tools & Manufacture. 2006;46:1064-1067.
Zheng, Z. P.; Su, H. C.; Huang, F. Y.; Yan, B. H. The tool geometrical shape and pulse- off time of pulse voltage effects in a Pyrex glass electrochemical discharge micro drilling process. Journal of Micromechanics & Microeneering. 2007; 17(2):265–272.
Yan, B. H., Yang, C. T., Huang, F. Y. and Lu, Z. H. Electrophoretic deposition grinding (EPDG) for improving the precision of micro holes drilled via ECDM. Journal of Micromechanics & Microengineering. 2007; 17:376–383.
Jain, V. K., Adhikary, S. On the mechanism of material removal in electrochemical spark machining of quartz under different polarity conditions Journal of Materials Processing Technology. 2008;200:460–470.
Sarkar B.R.; Doloi B.; Bhattacharyya B. Experimental investigation into electrochemical discharge micro drilling on advanced ceramics. International Journal of Manufacturing Technology and Management.2008;13:(2/3/4),214–225.
Sarkar B.R.; Doloi B.; Bhattacharyya B. Investigation into the influences of the power circuit on the micro-electrochemical discharge machining process, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. 2009;223 (2): 133 –144.
Han, M. S.; Min, B. K; Lee, S. J. Geometric improvement of electrochemical discharge micro-drilling using an ultrasonic-vibrated electrolyte. Journal of Micromechanics & Microengineering. 2009; 19: 065004.
Cheng, C. P., Wu, K. L., Mai, C. C., Hsu, Y. S. and Yan, B. H. Magnetic field-assisted electrochemical discharge machining. Journal of Micromechanics & Microengineering. 2010; 20:075019.
Liu, J. W., Yue, T. M., Guo, Z. N. An analysis of the discharge mechanism in electro chemical discharge machining of particulate reinforced metal matrix composites. International Journal of Machine Tools & Manufacture.2010;50:86–96.
Yang, C.-K., Cheng, C.-P., Mai, C.-C., Wang, A. C., Hung, J.-C., Yan, B.-H. Effect of surface roughness of tool electrode materials in ECDM performance. International Journal of Machine Tools & Manufacture.2010;50:088-1096.
Cheng C. P., Wu, K. L, Mai, C. C., Yang, C. K., Hsu, Y. S., Yan, B. H. Study of gas film quality in electro-chemical discharge machining. International Journal of Machine Tools & Manufacture. 2010; 50:689–697.
Sankar, A. R., Bindu, V.S.S, Das, S. Coupled effects of gold electroplating and electrochemical discharge machining processes on the performance improvement of a capacitive accelerometer. Micro systemTechnology.2011;17:1661–1670.
Wei, C., Hu, D., Xu, K., Ni, J. Electro-chemical discharge dressing of metal bond micro-grinding tools. International Journal of Machine Tools & Manufacture. 2011;51:165–168.
Cao, X. D., Kim, B. Y. and Chu, C. N. Hybrid Micromachining of Glass using ECDM and Micro Grinding. International Journal of Precision Engineering and Manufacturing. 2013;14 (1): 5-10.
Baoyang, J.; Shuhuai, L.; Kevin, W.; Jun, N. Modeling and experimental investigation of gas film in micro-electrochemical discharge machining process International Journal of Machine Tools and Manufacture.2015; 90: 8-15.
Hajian, M.; Razfar, M.R.; Movahed, S. An experimental study on the effect of magnetic field orientations and electrolyte concentrations on ECDM milling performance of glass. Precision Engg. 2016; 45:322-33.
Saranya, S.; Nair, A.; Ravi Sankar, A. Experimental investigations on the electrical and 2D-machining characteristics of an electrochemical discharge machining (ECDM) process. Microsystem Technologies. 2016;22: 1-9.
B. Mallick; B.R. Sarkar; B. Doloi; B. Bhattacharyya. Analysis on Electrochemical Discharge Machining during Micro-channel Cutting on Glass International Journal of Precision Technology. 2017;7(1):32-50.
S. Elhami & M. R. Razfar. Effect of ultrasonic vibration on the single discharge of electrochemical discharge machining. Journal of Materials and Manufacturing Processes. 2017; 1-8
P. K. Singh, A. K.Das, G. Hatui,G. C. Nayak. Shape controlled green synthesis of CuO nanoparticles through ultrasonic assisted electrochemical discharge process and its application for super capacitor. Materials Chemistry and Physics. 2017;198:16-34
S. Elhami, M.R. Razfar. Analytical and experimental study on the integration of ultrasonically vibrated tool into the micro electro-chemical discharge drilling. Precision Engineering. 2017;47:424-433.
M. Hajian & M. R. Razfar & A. H Etefagh. Experimental study of tool bending force and feed rate in ECDM milling. Int. J. Adv. Manuf. Technology. 2017;91:1677–1687.
W.Tang, X.Kang and W. Zhao. Enhancement of electrochemical discharge machining accuracy and surface integrity using side-insulated tool electrode with diamond coating. Journal of Micromechanics and Microengineering. 2017;27:6.
M. Han, K. W. Chae and B.K. Min. Fabrication of high-aspect-ratio microgrooves using an electrochemical discharge micro milling process. Journal of Micromechanics and Microengineering. 2017; 27: 5.
J.M.Pujara , K.D.Kothari and A.V.Gohil. An investigation of material removal rate and kerf on WEDM through grey relational analysis. Journal of Mechanical Engineering and Sciences. 2018;12, 2:3633-3644.
S.M. Chan, K.H. Chong and Basil T. Wong. The effect of 10µm micro channel on thermo-hydraulic performance for single phase flow in semi-circular cross-section serpentine. Journal of Mechanical Engineering and Sciences.2018; 12,2:3724-3737.
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