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Multi-objective Optimization of Electrical Discharge Machining Process During Machining of NiTi Alloy Using Taguchi and Utility Concept

  • Vaibhav S. GaikwadEmail author
  • Vijaykumar S. Jatti
  • Padmakar J. Pawar
  • Keshav N. Nandurkar
Conference paper

Abstract

Shape memory alloy namely NiTi alloy is one such advance material which imposes machinability issues when cut by conventional processes. Non-traditional machining process namely electrical discharge machining process overcomes the problem faced by conventional process. However, electrical discharge machining process has low material removal rate and high tool wear rate. Hence, the present study focuses on multi-objective optimization of electrical discharge machining process parameter for maximization of material removal rate and minimization of tool wear rate using Taguchi method and Utility concept. In present investigation NiTi alloy has been used as workpiece material and electrolytic copper as tool electrode. Experiments have been designed based on Taguchi’s L36 (22 × 33) mixed orthogonal array have been carried out on-die sink type of electric discharge machine. In the present study process parameter such as gap current, pulse on time, pulse off time have been considered at three levels and workpiece electrical conductivity and tool electrode electrical conductivity have been considered at two levels. Based on Taguchi analysis workpiece electrical conductivity, tool electrode electrical conductivity, gap current and pulse on time are found significant process parameters that affect the material removal rate and tool wear rate. From this work optimal values of process parameters that provides optimum material removal rate of 6.31 mm3/min and tool wear rate of 0.031 mm3/min are second level of work electrical conductivity (A2): 4219 S/m, second level of tool electrical conductivity (B2): 26316 S/m, third level of gap current (C3): 16 A and second level of pulse on time (D2): 38 μs.

Keywords

Multi-objective optimization Shape memory alloy Taguchi’s method Utility concept 

References

  1. 1.
    Chen SL, Hsieh SF, Lin HC, Huang JS (2007) EDM of TiNiCr and TiNiZr ternary SMA. Mater Sci Eng 445–446:486–492CrossRefGoogle Scholar
  2. 2.
    Chen SL, Hsieh SF, Lin HC, Huang JS (2008) EDM of NiAlFe ternary SMA. J Alloys Compd 464:446–451CrossRefGoogle Scholar
  3. 3.
    Sabouni HR, Daneshmand S (2012) Investigation of the parameter of EDM process performed on smart NiTi alloy using graphite tool. Life Sci J 9(4):504–510Google Scholar
  4. 4.
    Jatti VS, Singh TP (2014) Effect of deep cryogenic treatment on machinability of NiTi shape memory alloys in electro discharge machining. Appl Mech Mater 592–594:197–201CrossRefGoogle Scholar
  5. 5.
    Walkar H, Jatti VS, Singh TP (2014) Magnetic field assisted electrical discharge machining of AISI 4140. Appl Mech Mater 592–594:479–483CrossRefGoogle Scholar
  6. 6.
    Sadasiva Rao T, Rajesh V, Venu Gopal A (2012) Taguchi based grey relational analysis to optimize face milling process with multiple performance characteristics. In: Proceedings of the international conference on trends in industrial and mechanical engineering, (ICTIME), DubaiGoogle Scholar
  7. 7.
    Kapgate RA, Tatwawadi VH, Modak JP (2013) Process parameters modelling of wire electrical discharge machining on Al/Sic10% MMC using dimensional analysis. Int J Sci Eng Res 4(4):946–951Google Scholar
  8. 8.
    Singh J, Walia RS, Satsangi PS, Singh VP (2012) Hybrid electric discharge machining process with continuous and discontinuous ultrasonic vibrations on workpiece. Int J Mech Syst Eng 2:22–33Google Scholar
  9. 9.
    Roy RK (1990) A primer on Taguchi method. Van Nostrand Reinhold, New YorkzbMATHGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Vaibhav S. Gaikwad
    • 1
    Email author
  • Vijaykumar S. Jatti
    • 2
  • Padmakar J. Pawar
    • 1
  • Keshav N. Nandurkar
    • 1
  1. 1.Department of Production EngineeringK.K. Wagh Institute of Engineering Education and ResearchNashikIndia
  2. 2.Department of Mechanical EngineeringD.Y. Patil College of EngineeringAkurdi, PuneIndia

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