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Evaluation of wire electro discharge machining characteristics of Ti50Ni50−xCux shape memory alloys

  • Mallaiah Manjaiah (a1), Rudolph Frans Laubscher (a1), Sannayellapa Narendranath (a2), Sathyappa Basavarajappa (a3) and Vinayak Neelakanth Gaitonde (a4)...

Abstract

The machining of shape memory alloys (SMAs) is fairly essential and integral part in the manufacture of components for utilizing in engineering applications. An effort has been made in the present work to study the effect of wire electro discharge machining process parameters such as pulse on time (Ton), pulse off time (Toff) and servo voltage (SV) have been analyzed on material removal rate and surface roughness. The investigation clearly reveals that an increased pulse on time with decrease in pulse off time as well as SV increases the amount of material removed in machining of SMAs. On the other hand, the surface roughness increases with increased pulse on time and decreases with increased pulse off time as well as SV. The surface topography of the machined surface was analyzed using scanning electron microscope (SEM) and confocal micrographs. Phase changes on the machined surface with respect to pulse on time and SV were evaluated from X-ray diffractometer (XRD) analysis.

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a)Address all correspondence to this author. e-mail: manjaiahgalpuji@gmail.com

References

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1.Terayama, A. and Kyogoku, H.: Shape memory characteristics of the P/M-processed Ti–Ni–Cu alloys. Mater. Sci. Eng., A 527, 5484 (2010).
2.Valeanu, M., Lucaci, M., Crisan, A.D., Sofronie, M., Leonat, L., and Kuncser, V.: Martensitic transformation of Ti50Ni30Cu20 alloy prepared by powder metallurgy. J. Alloys Compd. 509, 495 (2011).
3.Frenzel, J., George, E.P., Dlouhy, A., Somsen, C., Wagner, M.F., and Eggeler, G.: Influence of Ni on martensitic phase transformations in NiTi shape memory alloys. Acta Mater. 58, 3444 (2010).
4.Weinert, K. and Petzoldt, V.: Machining of NiTi based shape memory alloys. Mater. Sci. Eng., A 378, 180 (2004).
5.Weinert, K., Petzoldt, V., and Kotter, D.: Turning and drilling of NiTi shape memory alloys. CIRP Ann. Technol. 53, 65 (2004).
6.Kaynak, Y., Karaca, H.E., Noebe, R.D., and Jawahir, I.S.: Analysis of tool-wear and cutting force components in dry, preheated, and cryogenic machining of NiTi shape memory alloys. Procedia CIRP 8, 498 (2013).
7.Chen, S.L., Hsieh, S.F., Lin, H.C., Lin, M.H., and Huang, J.S.: Electrical discharge machining of TiNiCr and TiNiZr ternary shape memory alloys. Mater. Sci. Eng., A 446, 486 (2007).
8.Lin, H., Lin, K., Chen, Y., and Chu, C.: The wire electro-discharge machining characteristics of Fe–30Mn–6Si and Fe–30Mn–6Si–5Cr shape memory alloys. J. Mater. Process. Technol. 161, 435 (2005).
9.Hsieh, S.F., Chen, S.L., Lin, H.C., Lin, M.H., and Chiou, S.Y.: The machining characteristics and shape recovery ability of Ti–Ni–X (X = Zr, Cr) ternary shape memory alloys using the wire electro-discharge machining. Int. J. Mach. Tools Manufact. 49, 509 (2009).
10.Narendranath, S., Manjaiah, M., Basavarajappa, S., and Gaitonde, V.: Experimental investigations on performance characteristics in wire electro discharge machining of Ti50Ni42.4Cu7.6 shape memory alloy. Proc. Inst. Mech. Eng., Part B 227, 1180 (2013).
11.Manjaiah, M., Narendranath, S., and Gaitonde, S.B.V.N.: Some investigations on wire electric discharge machining characteristics of titanium nickel shape memory alloy. Trans. Nonferrous Met. Soc. China 24, 3201 (2014).
12.Manjaiah, M., Narendranath, S., Basavarajappa, S., and Gaitonde, V.N.: Effect of electrode material in wire electro discharge machining characteristics of Ti50Ni50−xCux shape memory alloy. Precis. Eng. 41, 68 (2015).
13.Ross, P.J.: Taguchi Techniques for Quality Engineering, Illustrate (McGraw Hill Professional, New York, NY, 1996).
14.Garg, M.P., Jain, A., and Bhushan, G.: Modelling and multi-objective optimization of process parameters of wire electrical discharge machining using non-dominated sorting genetic algorithm-II. Proc. Inst. Mech. Eng., Part B 226, 1986 (2012).
15.Tarng, Y.S. and Chung, L.K.: Determination of optimal cutting parameters in wire electrical discharge machining. Int. J. Mach. Tools Manufact. 35, 1693 (1995).
16.Alidoosti, A., Ghafari-Nazari, A., Moztarzadeh, F., Jalali, N., Moztarzadeh, S., and Mozafari, M.: Electrical discharge machining characteristics of nickel–titanium shape memory alloy based on full factorial design. J. Intell. Mater. Syst. Struct. 24, 1546 (2013).
17.Kuriakose, S. and Shunmugam, M.S.: Characteristics of wire-electro discharge machined Ti6Al4V surface. Mater. Lett. 58, 2231 (2004).

Keywords

Evaluation of wire electro discharge machining characteristics of Ti50Ni50−xCux shape memory alloys

  • Mallaiah Manjaiah (a1), Rudolph Frans Laubscher (a1), Sannayellapa Narendranath (a2), Sathyappa Basavarajappa (a3) and Vinayak Neelakanth Gaitonde (a4)...

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