STUDY OF ELECTROLYTE FLOW AT ELECTROCHEMICAL FINISHING
Keywords:
electrochemical, electrolyte flow, surface roughness, numerical simulation
Abstract
The paper presents the current state of the electrochemical polishing process (Electro Chemical Machining – ECM), using the intermittent flow method of the electrolytic liquid. The uniformity of the flow rate on the machined surface was aimed for, a key condition for ECM polishing. The logical scheme of the study and numerical simulations of the flow were developed for three different machining surfaces, in the following cases: laminar flow, turbulent flow and flow stop. The distributions of flow velocities in the machining gap were determined. The results of the simulations were validated by experimental data that determined an optimal value for the current density on the machined surface at which a maximum decrease in roughness was achieved.
References
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2. Marinescu, N.I., Ghiculescu, D., Popa, L., Pîrnău, C., Marinescu, R., Ene, G.M., Procese tehnologice cu fascicule, oscilații și jeturi, Volumul 3, Tehnologii cu unde ultrasonice, ISBN 978-606-23-0984-8, Editura Printech, Cod CNCSIS 54, București, 2019.
3. Kuwabara Y, Hukuroi-shi S., Electrolytic finishing method, EP 0 471 086 A1.
4. Hongping L, Dahai M., Characteristics of ECM polishing influenced by workpiece corner feature and electrolyte flow, in: M. Kunieda, R.K. Leach: Precision Engineering, vol. 56, Elsevier, pag. 330-342, ISSN: 1873-2372, (2019).
5. Chagnes, A., Chapter 2 - Fundamentals in Electrochemistry and Hydrometallurgy, in: A. Chagnes, J. Światowska: Lithium Process Chemistry, pag. 41-80, Elsevier, ISBN: 978-0-12-801417-2, (2015).
6. L.G., Leal, Laminar Flow and Convective Transport Processes, 143030, Elsevier, ISBN: 978-0-7506-9117-8, (1992).
7. R.K., Shah, A.L., London, Laminar Flow Forced Convection in Ducts, Elsevier, ISBN: 978-0-12-020051-1, (1978).
8. T., Cebeci, Analysis of Turbulent Flows with Computer Programs, Elsevier, ISBN: 978-0-08-098335-6, (2013).
9. Hassan, E.H., Vibration-assisted electrochemical machining: a review, The International Journal of Advanced Manufacturing Technology, Vol. 105, p. 579-593, (2019).
10. Saxena, K.K., Qian, J., Reynaerts, D., A review on process capabilities of electrochemical micromachining and its hybrid variants, International Journal of Machine Tools and Manufacture, Vol. 127, p. 28-56, (2018).
11. Nicoara, D., Hedes, A., Sora, I., Ultrasonic Enhancement of an Electrochemical Machining Process, Proceedings of the 5th WSEAS International Conference on Applications of Electrical Engineering, Prague, Czech Republic, Vol. 5, p. 213-218, (2006).
12. Zhang, Y., Investigation Into Current Efficiency For Pulse Electrochemical Machining Of Nickel Alloy, Industrial and Management Systems Engineering, M.S. Thesis, University of Nebraska - Lincoln, (2010).
13. Katiyar, P.K., Randhawa, N. S., Hait, J., Jana, R.K., Singh, K.K., Mankhand, T.R., Anodic Dissolution Behaviour of Tungsten Carbide Scraps in Ammoniacal Media, In Advanced Materials Research, Vol. 828, p. 11-20, Trans Tech Publications, Ltd., (2013).
14. Reza, R.H., Mohammadreza, S., Machining of 304 stainless steel Using Electrochemical Machining (ECM) Process: Response Surface Methodology Approach, International Journal of Industrial Engineering & Production Research, Vol. 31, p. 397-407, (2020).
Published
2025-03-31
How to Cite
Bunea, I., Paun, A., Ghiculescu, L., & Enciu, C. (2025). STUDY OF ELECTROLYTE FLOW AT ELECTROCHEMICAL FINISHING. Nonconventional Technologies Review, 29(1). Retrieved from http://www.revtn.ro/index.php/revtn/article/view/507
Section
Articles
