Proekologiczne trendy w obróbce elektroerozyjnej
Environmentally friendly trends in electrical discharge machining (EDM)
Mechanik nr 04/2015 - Artykuły z XII Międzynarodowej Konferencji Electromachining 2015 zamieszczone na płycie CD
STRESZCZENIE: Obróbka elektroerozyjna (Electro-Discharge Machining - EDM) jest jednym z najbardziej rozpowszechnionych sposobów niekonwencjonalnego kształtowania przedmiotów, stosowanym do wytwarzania powierzchni o złożonych kształtach, głównie w materiałach o dużej twardości i trudnoskrawalnych. Rosnące zainteresowanie wpływem procesów wytwarzania na środowisko naturalne i zdrowie pracowników spowodowało podjęcie badań zmierzających do opracowania nowych lub zmodyfikowanych sposobów obróbki zmniejszających lub eliminujących ich negatywne oddziaływania ekologiczne. W artykule przedstawiono analizę czynników procesu drążenia elektroerozyjnego będących źródłem zagrożeń środowiskowych oraz scharakteryzowano podejmowane próby ich ograniczenia z zastosowaniem innowacyjnych rozwiązań technologicznych obróbki elektroerozyjnej.
SŁOWA KLUCZOWE: obróbka elektroerozyjna, drążenie, cięcie elektroerozyjne, na sucho, z minimalną ilością dielektryka.
ABSTRACT: EDM (Electrical Discharge Machining- EDM) is one of the most common ways of unconventional machining of objects with the surfaces of complex shape mainly in materials with high hardness and difficult to cut. The growing concern of the impact of manufacturing processes on the environment and health of workers has prompted research to develop innovative solutions to reduce or eliminate their negative environmental impacts. The article presents an analysis of the EDM factors generating environmental risks and characterizes the attempts to limit their negative influence by introducing innovative EDM technologies.
KEYWORDS: EDM, dry EDM, wire electrical discharge WEDM, minimum amount of the dielectric.
BIBLIOGRAFIA / BIBLIOGRAPHY:
- Abbas_N.M., Solomon D.G., Bahari M.F., A review on current research trends in electrical discharge machining (EDM). International Journal of Machine Tools & Manufacture, 47, 1214–1228, 2007.
- Baib X., Zhang Q., Zhang J., Kong D., Yang T., Machining efficiency of powder mixed near dry electrical discharge machining based on different material combinations of tool electrode and workpiece electrode. Journal of Manufacturing Processes, 15, 474–482, 2013.
- Dauw D.F., Albert L., About the evolution of wire tool performance in wire EDM. Annals of CIRP, 41/1, 221–225 1992.
- Diane D., Quality water for wire EDM. SME Technical Paper (Series), MR94-249, 1-8, 1994.
- Evertz S., Dott W., Eisentraeger A., Electrical discharge machining: Occupational hygienic characterization using emission-based monitoring. Int. J. Hyg. Environ.-Health, 209, 423–434, 2006.
- Frei C., Hirt C., A new approach for contamination measurements for EDM dielectrics. Annals of CIRP, 36/1, 111–113, 1987.
- J.Tao, A.J. Shih, J. Ni, Experimental study of the dry and near-dry electrical discharge milling processes, Journal of Manufacturing Science and Engineering, 130/1, DOI: 10.1115/1.2784276, 2008.
- Joshi S., Govindan P., Malshe A., Rajurkar K., Experimental characterization of dry EDM performed in a pulsating magnetic field. Annals of CIRP, 60/1, 239–242, 2011.
- Kao C.C., Tao J., Shih A.J., Near dry electrical discharge machining. International Journal of Machine Tools & Manufacture, 47, 2273–2281, 2007.
- Kozak J., Rozenek M., Dabrowski L., Study of electrical discharge machining using powder-suspended working media, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 217, 1597–1602, 2003.
- Kunieda M., Furudate Ch., High Precision Finish Cutting by Dry WEDM. Annals of CIRP, 50/1, 121–124, 2001.
- Kunieda M., Takaya T., Nakano S., Improvement of Dry EDM Characteristics Using Piezoelectric Actuator. Annals of CIRP, 53/1, 183–186, 2004.
- Kunleda M., Miyoshi Y. Takaya T., Nakajima N., ZhanBo Y., Yoshida M., Hlgh Speed 3D Mllllng by Dry EDM. Annals of CIRP, 52/1, 147–150, 2003.
- Levy G.N., Environmentally friendly and high - capacity dielectric regeneration for wire EDM. Annals of CIRP, 42/1, 227–230, 1993.
- Liqinga L., Yingjie S., Study of dry EDM with oxygen-mixed and cryogenic cooling approaches. The Seventeenth CIRP Conference on Electro Physical and Chemical Machining (ISEM), Procedia CIRP, 6, 344 – 350, 2013.
- Oczoś K.E., Obróbka ubytkowa ceramiki technicznej. Mechanik, 4, 5-6, 1994.
- Q.H. Zhang, J.H. Zhang, S.F. Ren, J.X .Deng, X.Ai, Study on technology of ultrasonic vibration aided electrical discharge machining in gas, in:14th International Symposium on Electromachining (ISEMXIV), Journal of Materials Processing Technology, 149(1–3), 640–644, 2004.
- Roth R., Kuster F., Wegener K., Influence of oxidizing gas on the stability of dry electrical discharge machining process. The Seventeenth CIRP Conference on Electro Physical and Chemical Machining (ISEM), Procedia CIRP, 6, 338 – 343, 2013.
- Saha S. K., Choudhury S.K., Experimental investigation and empirical modeling of the dry electric discharge machining process. International Journal of Machine Tools & Manufacture, 49, 297–308, 2009.
- Sivapirakasama S.P., Mathew J, Surianarayanan M., Constituent analysis of aerosol generated from die sinking electrical discharge machining process. Process Safety and Environmental Protection, 8, 9, 141–150, 2011.
- Tonshoff H.K., Egger R., Klocke F., Environmental and safety aspects of electrophysical and electrochemical processes. Annals of CIRP, 45/2, 553–568, 1996.
- Wang T., Chen Y., Kunieda M., Study on wire-cut electrical discharge machining in gas. Journal of Mechanical Engineering, 39, 76–80, 2003.
- Xu M.G., Zhang J.H., Li Y., Zhang Q.H., Material removal mechanisms of cemented carbides machined by ultrasonic vibration assisted EDM in gas medium. Journal of Materials Processing Technology, 209, 1742–1746, 2009.
- Ming Y.Q., He L. Y., Powder-suspension dielectric fluid for EDM. Journal of Materials Processing Technology, 52, 44–54, 1995.
- Yu Z.B., Jun T., Masanori K., Dry electrical discharge machining of cemented carbide. Journal of Materials Processing Technology, 149, 353–357, 2004.
- Zhanbo Y., Takahashi J., Nakajima N., Sano S., Karato K., Kunieda M., Feasibility of 3-D surface machining by dry EDM. International Journal of Electrical Machining, 10, 15–20, 2005.
- Zhang Q.H., Du R., Zhang J.H., Zhang Q.B., An investigation of ultrasonic-assisted electrical discharge machining in gas. International Journal of Machine Tools & Manufacture, 46, 1582–1588, 2006.