Hybrid electrochemical discharge drilling
Laurențiu SLĂTINEANU, Margareta COTEAȚĂ, Oana DODUN, Andrei Marius MIHALACHE, Adelina HRIȚUC, Gheorghe NAGÎȚ
Abstract. Making small-diameter holes in workpiece materials that are difficult to machine using classic cutting processes may require using relatively expensive equipment for machining using unconventional methods. A more accessible process for making small-diameter holes in hard-to-machine materials is hybrid electrochemical discharge drilling. In principle, such a process is based on the material removal from the workpiece both using electrical discharges and chemical reactions between the electrolyte-type working fluid and the material of the workpiece, under the conditions of placing the tool electrode and the workpiece in an electrolyte and connecting them in a circuit of a direct current source. It is proposed to use relatively simple equipment, which ensures the rotation of the drill-type tool electrode and the use of an electrolyte based on an aqueous solution of sodium silicate soluble in water. The analysis of the functional requirements allowed the gradual design of an equipment solution that enables the realization of small-diameter holes using hybrid electrochemical discharge machining. Preliminary experiments proved the good functioning of the equipment.
Keywords
Hybrid Machining, Electrochemical Discharge Drilling, Drilling Equipment, Functional Requirements, Preliminary Experiment
Published online 12/10/2024, 8 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Laurențiu SLĂTINEANU, Margareta COTEAȚĂ, Oana DODUN, Andrei Marius MIHALACHE, Adelina HRIȚUC, Gheorghe NAGÎȚ, Hybrid electrochemical discharge drilling, Materials Research Proceedings, Vol. 46, pp 176-183, 2024
DOI: https://doi.org/10.21741/9781644903377-23
The article was published as article 23 of the book Innovative Manufacturing Engineering and Energy
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
[1] J. Kozak, K.P. Rajurkar, Hybrid machining process evaluation and development, Proceedings of 2nd international conference on machining and measurements of sculptured surfaces, Keynote Paper, Krakow, 501–536, 2000
[2] J. Kozak, K.P. Rajurkar, B. Wei, Modelling and Analysis of Pulse Electrochemical Machining (PECM), Transactions of the ASME. Journal of Manufacturing Science and Engineering, 116, 3, 1994, 316-323. https://doi.org/10.1115/1.2901947
[3] B.A. Artamonov, A.L. Vishnitskiy, I.S. Volkov, A.V. Glazko, Dimensional electrical machining of metals (in Russian), Vysshaia Shkola Publishing House, Moscow, 1978
[4] L. Slătineanu, G. Nagîț, O. Dodun, M. Coteață, A. Munteanu, I. Beșliu-Băncescu, A.-L. Gherman, A. Hrițuc, F. Chinesta, A. Goncalves-Coelho, J.P. Teixeira, M. San Juan, L. Santo, F. Santos, Electrophysical and chemical manufacturing processes, Publishing House Tehnica Info, Chișinău (Republic of Moldova), 2020
[5] K. Allessu, M.K. Manju, A. Ghosh, Preliminary qualitative approach of a proposed mechanism of material removal in electrical machining of glass. European Journal of Mechanical Engineers, 36, 3, 1992, 202-207
[6] C.-H. Yang, T.-C. Wang, J.-C. Hung, H.-P. Tsui, Ultrasonic vibration-assisted electrochemical discharge machining of quartz wafer micro-hole arrays, Processes, 11, 3300, 2023. https://doi.org/10.3390/pr11123300
[7] M. Coteaţă., H.-P. Schulze, L. Slătineanu, Drilling of difficult-to-cut steel by electrochemical discharge machining, Materials and Manufacturing Processes, 26, 12, 2011, 1466-1472. https://doi.org/10.1080/10426914.2011.557286
[8] M. Coteață. Nonconventional manufacturing technologies. Course support (in Romanian), Publishing House PIM, Iaşi (Romania), 2021
[9] M. Coteaţă, H.-P. Schulze, L. Slătineanu, Drilling of difficult-to-cut steel by electrochemical discharge machnining, Materials and Manufacturing Processes, 26, 12, 2011, 1466-1472. https://doi.org/10.1080/10426914.2011.557286
[10] D.M. Zmiev, Anodic mechanical machining (in Russian), https://dic.academic.ru/dic.nsf/bse/64118/%D0%90%D0%BD%D0%BE%D0%B4%D0%BD%D0%BE, accessed: 12.09.2024
