Affiliation:
1. Politehnica University of Bucharest
Abstract
The paper deals with phenomena occurring at the ultrasonic aided electrical discharge machining (EDM-US) of electro-conductive metal matrix composites materials (EC-MMCs-Al/Al2O3p). Starting from the analysis of the cavitational phenomena due to the forced ultrasonic longitudinal vibrations of the electrode and the phenomena caused by the thermal shock, a physical-mathematical model of the material removal process was developed consisting mainly by boiling, vaporization and spalling. Based on the Finite Element Method (FEM), the thermal shock phenomenon, as well as its influence on the material removal process, is described.
Publisher
Trans Tech Publications, Ltd.
Reference9 articles.
1. C. Opran, C. Pupăză, D. Ghiculescu, Analysis using FEM of the Dynamics of Technological Process at Ultrasonic Aided EDM of Metal Matrix Composites, International Conference on Nonconventional Technologies CITN' 2000, Brasov, Romania, Vol. 1, 2000, pp.124-130.
2. A.G. Schneider, G. Petzow, Thermal shock and thermal fatigue behaviour of advanced ceramics, Kluwer Academic Publishers Group, The Netherlands, (1993).
3. C. Opran, O. Blajină, Temperature field in EDM of ceramics composites, Annals of DAAAM for 2009 & Proceedings of the 20th International DAAAM Symposium, Vol. 20, Viena, Austria, 2009, pp.1519-1522.
4. P.M. Lonardo, A.A. Bruzzone, Effect of Flushing and Electrode Material on Die Sinking EDM, Annals of the CIRP, Vol. 48/1, 1999, pp.123-126.
5. A.A.O. Toy, K.H. Lee, Calculation of Temperature Distributions in Machining using a Hybrid Element-Boundary Method, Journal of Materials Processing Technology, No. 29, 1992, pp.47-62.
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