Experimental model on the wire wear for WEDM of hard to machine materials

• Autorzy: Poros Dariusz , Zaborski Stanislaw , Wisniewska Magdalena

Identyfikatory

DOI

10.5604/01.3001.0013.6234

• Języki publikacji: EN

Abstrakty

EN

In this study, the wear of wire electrodes was investigated experimentally in wire electrical discharge machining. Naked brass wire, 0.25 mm diameter, zinc oxide coated brass wire and brass CuZn20 coated with brass CuZn50 wire were applied in the conducted research. The wire wear ratio of WEDM of titanium alloy Ti6Al4V and cemented carbide B40 was described. As important WEDM parameters, the following variables were chosen: discharge time t_on, average working voltage U. The following properties of machined materials, such as: melting point T_t, electrical conductivity σ, thermal conductivity K, thermal expansion coefficient k, density ρ, heat capacity c_p, were also selected to develop the semi-empirical model of the wear of wire electrodes. The variation of the wire wear with cutting different materials by applying three different wire electrodes and process parameters was modelled semi-empirically by employing dimensional analysis.

Słowa kluczowe

EN

WEDM; wire electrodes wear; dimensional analysis

• Wydawca: Wydawnictwo Wrocławskiej Rady FSNT NOT
• Czasopismo: Journal of Machine Engineering
• Rocznik: 2019
• Tom: Vol. 19, No. 4
• Strony: 110--121
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Poros Dariusz

• Wroclaw University of Science and Technology, Department of Machine Tools and Mechanical Technologies, Wroclaw, Poland

autor

Zaborski Stanislaw

• Wroclaw University of Science and Technology, Department of Machine Tools and Mechanical Technologies, Wroclaw, Poland

autor

Wisniewska Magdalena

• Wroclaw University of Science and Technology, Department of Machine Tools and Mechanical Technologies, Wroclaw, Poland

Bibliografia

• [1] KURIAKOSE S., SHUNMUGAM M.S., 2004, Characteristics of wire-electro discharge machined Ti6Al4V surface, Materials Letters, 58, 2231–2237.
• [2] SARKAR S., MITRA S., BHATTACHARYYA B., 2005, Parametric analysis and optimization of wire electrical discharge machining of titanium aluminide alloy, J. Mat. Proc. Technol., 159, 286–294.
• [3] JUHR H., et al., 2004, Improved cemented carbide properties after wire-EDM by pulse shaping, J. Mat. Proc. Technol., 149, 178–183.
• [4] QU J., RIESTER L., SHIH A.J., et al., 2003, Nanoindentation characterization of surface layers of electrical discharge machined WC-Co, Materials Science and Engineering, A344, 125–131.
• [5] ZABORSKI S., POROŚ D., 2007, Effect of process parameters on the condition of the wire electrode in WEDM of cemented carbides, ISEM XV, 23–27 April, Pittsburgh.
• [6] DIBITONTO D.D., EUBANK P.T., PATEL M.R., BARRUFET M.A., 1989, Theoretical models of the electrical discharge machining process. I. A simple cathode erosion model, J. Appl. Phys., 66, 4095.
• [7] ENACHE S., OPRAN C., STOICA G., STRAJESCU E., 1990, The study of EDM with forced vibration of tool electrode, Ann. CIRP, 39/1, 167–170.
• [8] KINOSHITA N., et al., 1976, Study on E.D.M. with wire electrode; gap phenomena, Ann. CIRP, 25/1, 141–145.
• [9] PURI A.B., BHATTACHARYYA B., 2003, An analysis and optimisation of the geometrical inaccuracy due to wire lag phenomenon in WEDM, Int. J. Mach. Tools Manuf., 43, 2, 151–159.
• [10] SPUR G., SCHOENBECK J., 1993, Anode erosion in wire-EDM - a theoretical model, Ann. CIRP, 42/1, 253–56.
• [11] KASPRZAK W.,. LYSIK B., 1978, Dimensional analysis in experiment design, WNT, Wrocław, 71–91, (in Polish).
• [12] SUCHECKI W., 2003, Fluid mechanics, Płock, 157–161, (in Polish).

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).