Elektro erozyon ile işlemede elektrot ön yüzey aşınmasının deneysel incelenmesi

Bu çalışmada, elektro-erozyon ile işlemede elektrot aşınma hızı ve elektrot ön yüzey aşınmasının işleme parametreleri ile değişimi incelenmiştir. Çelik işparçası, silindirik bakır elektrot ve gazyağı dielektrik kullanılarak değişik dielektrik uygulama yöntemleri (püskürtme, emme ve statik), boşalım akımları ve vurum sürelerinde deneyler yapılmıştır. Deneyler neticesinde, işleme parametrelerinin ve dielektrik uygulama yöntemlerinin, elektrot aşınma hızı ve elektrot ön yüzey aşınması üzerinde etkili olduğu görülmüştür.

In this study, the variations of electrode wear rate and electrode front surface wear were investigated with the varying machining parameters. The experiments were conducted by using steel workpieces and cylindrical copper tool electrodes with kerosene dielectric under different dielectric application conditions (injection, suction and static), discharge currents and pulse durations. The experiments have shown that machining parameters and dielectric application conditions were effective on electrode wear rate and front surface wear.

___

  • 1. Benedict, G.F., 1987, Nontraclitional Machining Processes, New York and Basel Marcel Dekker, Inc, 207-229.
  • 2. Tricarico, C., Delpretti, R., Dauw, D.F., 1988, Geometrical Simulation of the EDM Die-Sinking Process, Annals of the CIRP, 37, 1, 191-196.
  • 3. Crookall, J.R., 1979, A Theory of Planar Electrode Face Wear in EDM, Annals of the CIRP, 28, 1, 125-129.
  • 4. Çoğun, C., Akaslan, Ş., 2002, The Effect of Machining Parameters on Tool Flectrode Wear and Machining Performance in Electric Discharge Machining, KSME International Journal, 16, 1, 46-59.
  • 5. Çoğun, C., Poyrazoğlu, O., 2001, The Variation of Ma¬chining Performance With Machining Parameters in EDM, 2nd International Conference on Design and Production of Dies and Molds, Kuşadası.
  • 6. Chen, Y., Mahdavian, S.M., 1999, Parametric Study Into Erosion Wear in a Computer Numerical Controlled Electro- discharge Machining Process, Wear, 236, 350-354.
  • 7. Mohri, N., Suzuki, M., Furuya, M., Saito, N., 1995, Electrode Wear Process in Electrical Discharge Machining, Annals of the CIRP, 44, 1, 165-168.
  • 8. Chen, S.L., Yan, B.H., Huang, F.Y., 1999, Influence of Kerosene and Distilled Water as Dielectrics on the Electric discharge Machining Characteristics of Tİ-6A1-4V, Journal of Materials Processing Technology, 87, 107-111.
  • 9. König, W., Jörres, L., 1987, Aqueous Solutions of Organic Compounds as Dielectrics for EDM Sinking, Annals of the CIRP, 36, 1, 105-109.
  • 10. Koenig, W., Weill, R., Wertheim, R., Jutzler, W.I., 1977, The Flow Fields in the Working Gap With Electro-Discharge- machining, Annals of the CIRP, 25, 1, 71-76.
  • 11. Yan, B.H., Wang, C.C., 1999, The Machining Characteristics of A1203/6061Al Composite Using Rotary Electro-Discharge Machining With a Tube Electrode, Journal of Materials Processing Technology, 95, 107-111.
  • 12. Lee, S.H., Li, X.P., 2001, Study of the Effect of Machining Parameters on the Machining Characteristics in Electrical Discharge Machining of Tungsten Carbide, Journal of Materials Processing Technology, 115, 344-358.
  • 13. Hocheng, H., Lei, W.T., Hsu, H.S., 1997, Preliminary Study of Material Removal in Electrical-Discharge Machining of SiC/Al, Journal of Materials Processing Technology, 63, SO¬SİS.
  • 14. Çoğun, C., 1990, A Technique and its Application for Evaluation of Materials Contributions in Electric Discharge Machining, International Journal of Machine Tools & Manufacture, 30, 1, 19-31.
  • 15. Çoğun, C., 1990, Rules for Avoiding the Scrap Workpieces in Electric Discharge Machining, Mechanical Incorprated Engineer, 2, 2, 31-33