Design of Pulsed Electrochemical Machining Processes Based on Data Processing and Multiphysics Simulation
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Abstract
The process principle of electrochemical machining (ECM) is based on anodic material dissolution at the interface between the workpiece surface and an electrically conductive solution without any mechanical or significant thermal impact on the workpiece surface. As the material removal mechanism is contact- and force-free it is independent of mechanical properties of the workpiece material such as strength or hardness.
In this paper, a methodology to perform the process design of pulsed electrochemical machining (PECM) for manufacturing a three-dimensional geometry based on a sequence of standardized material characterization experiments, data processing and multiphysics simulation is shown. As a part of parameter studies, the machining parameters cathode feed rate and process voltage were varied to determine their influence on the resulting workpiece geometry. Resulting process conditions as for example the working gaps and electric current density distributions were analyzed and compared with experimental results.
Keywords
Pulsed electrochemical machining (PECM) High-strength materials Process designReferences
- 1.Fransens, J.R., Regt, C., De, C., Zijlstra, H.: Pulsed precision ECM applications in the field of consumer products and medical applications. In: Proceedings of the 10th INSECT, Saarbrücken, pp. 15–23 (2014)Google Scholar
- 2.Bard, A., György, I., Scholz, F.: Electrochemical Dictionary. Springe, Berlin (2012). https://doi.org/10.1007/978-3-642-29551-5
- 3.Lauwers, B., Klocke, F., Klink, A., Tekkaya, E., Neugebauer, R., McIntosh, D.: Hybrid processes in manufacturing. In: CIRP Annals – Manufacturing Technology, CIRP, pp. 561–583 (2014). https://doi.org/10.1016/j.cirp.2014.05.003
- 4.Rajurkar, K.P., Zhu, D., McGeough, J.A., Kozak, J., De Silva, A.: New developments in electro-chemical machining. In: CIRP Annals – Manufacturing Technology, pp. 567–579 (1999). https://doi.org/10.1016/S0007-8506(07)63235-1
- 5.Hinduja, S., Kunieda, M.: Modelling of ECM and EDM processes. In: CIRP Annals – Manufacturing Technology, CIRP, pp. 775–797 (2013). https://doi.org/10.1016/j.cirp.2013.05.011
- 6.Deutsches Institut für Normung e. V.: DIN SPEC 91399: Methode zur Bestimmung von Prozesseingangsgrößen für das elektrochemische Präzisionsabtragen – Anforderungen, Kriterien, Festlegungen (2018)Google Scholar
- 7.Meichsner, G., Hackert-Oschätzchen, M., Krönert, M., Edelmann, J., Schubert, A., Putz, M.: Fast determination of the material removal characteristics in pulsed electrochemical machining. In: CIRP Conference on High Performance Cutting – HPC 2016, pp. 123–126. Elsevier B.V. (2016). https://doi.org/10.1016/j.procir.2016.03.175
- 8.Loebel, S., Hackert-Oschätzchen, M., Meichsner, G., Schubert, A.: Development of interfaces for material data integration in models of electrochemical machining processes. In: Proceedings of the 13th INSECT, p. 8 (2017)Google Scholar
- 9.Schaarschmidt, I., Zinecker, M., Hackert-Oschätzchen, M., Meichsner, G., Schubert, A.: Multiscale multiphysics simulation of a pulsed electrochemical machining process with oscillating cathode for microstructuring of impact extrusion punches. Procedia CIRP. 58, 257–262 (2017). https://doi.org/10.1016/j.procir.2017.04.005CrossRefGoogle Scholar
- 10.Schaarschmidt, I., Meichsner, G., Zinecker, M., Schubert, A.: Multiscale model of the PECM with oscillating cathode for external geometries using a virtual switch. In: COMSOL Conference Rotterdam 2017 (2017).Google Scholar
- 11.Schaarschmidt, I., Hackert-Oschätzchen, M., Meichsner, G., Zinecker, M., Schubert, A.: Implementation of the machine tool-specific current and voltage control characteristics in multiphysics simulation of electrochemical precision machining. Procedia CIRP. 82, 237–242 (2019). https://doi.org/10.1016/j.procir.2019.04.142CrossRefGoogle Scholar