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Machining of Ti–6Al–4V using diffusion annealed zinc-coated brass wire in WEDHT

  • M. Vignesh
  • R. RamanujamEmail author
Technical Paper
  • 33 Downloads

Abstract

Titanium is predominantly used in the industrial sectors such as bio-medical, chemical, aircraft and marine because of its improved properties such as corrosion resistance and strength. Other properties such as increased toughness, hardness, poor thermal diffusivity make the material to fall under the category of difficult-to-cut, and this gave rise to the introduction of advanced machining processes. Wire electrical discharge hybrid turning (WEDHT) is one such process which could machine electrically conductive material and is discussed in this present research work. WEDHT of Ti–6Al–4V alloy is performed with diffusion annealed zinc-coated wires in the presence of deionised water as the dielectrics. The objective of the present work is to analyse the quality of the machined surface and the amount of material removed during hybrid turning process. The input parameters chosen for the present experimentation are wire feed rate (3, 4, 5 m/min), pulse ON time (108, 111, 114 µs), servo feed (5, 7, 9 mm/min), to conduct 27 experiments. The surface quality of the machined component is studied and analysed using 2D and 3D surface profilers along with scanning electron microscopic images. The effect of heat on the machined sample and its effect on the work material surface are studied with the help of micro-hardness analysis. The amount of material removed is calculated by measuring the weight of the sample prior to and after machining. From experimentation, the lower surface roughness of 2.0087 µm is obtained at 108 µs of pulse ON time, 5 m/min of wire feed rate and 5 mm/min of servo feed. The increased material removal 0.0169 g/min is obtained at 114 µs of pulse ON time, 5 m/min of wire feed rate and 5 mm/min of servo feed. On comparison, diffusion annealed zinc-coated brass wires outperformed uncoated brass wires with 18.95% and 44.37% for surface roughness and material removal rate criteria, respectively.

Keywords

Titanium Zinc Diffusion Annealed Hybrid Turning 

Notes

Acknowledgements

The authors thank Vellore Institute of Technology (VIT), Vellore, for providing ‘VIT SEED GRANT’ for carrying out this research work. Also, authors thank the Scanning Electron Microscopy (SEM) Lab of VIT, Vellore, for giving the good-quality images of the machined samples. The assistance from the Materials Engineering and Technology (MET) Lab of VIT, Vellore, is highly appreciated.

References

  1. 1.
    Ahmed N, Ishfaq K, Moiduddin K et al (2019) Machinability of titanium alloy through electric discharge machining. Mater Manuf Process 34:93–102.  https://doi.org/10.1080/10426914.2018.1532092 CrossRefGoogle Scholar
  2. 2.
    Kumar M, Datta S, Kumar R (2019) Electro-discharge machining performance of Ti–6Al–4V alloy: studies on parametric effect and phenomenon of electrode wear. Arab J Sci Eng 44:1553–1568CrossRefGoogle Scholar
  3. 3.
    Rajendran S, Marimuthu K, Sakthivel M (2013) Study of crack formation and resolidified layer in EDM process on T90Mn2W50Cr45 tool steel. Mater Manuf Process 28:664–669.  https://doi.org/10.1080/10426914.2012.727120 CrossRefGoogle Scholar
  4. 4.
    Ho KH, Newman ST, Rahimifard S, Allen RD (2004) State of the art in wire electrical discharge machining (WEDM). Int J Mach Tools Manuf 44:1247–1259.  https://doi.org/10.1016/j.ijmachtools.2004.04.017 CrossRefGoogle Scholar
  5. 5.
    Soni H, Sannayellappa N, Rangarasaiah RM (2017) An experimental study of influence of wire electro discharge machining parameters on surface integrity of TiNiCo shape memory alloy. J Mater Res 32:3100–3108.  https://doi.org/10.1557/jmr.2017.137 CrossRefGoogle Scholar
  6. 6.
    Hewidy MS, El-Taweel TA, El-Safty MF (2005) Modelling the machining parameters of wire electrical discharge machining of Inconel 601 using RSM. J Mater Process Technol 169:328–336.  https://doi.org/10.1016/j.jmatprotec.2005.04.078 CrossRefGoogle Scholar
  7. 7.
    Kozak J, Rajurkar KP, Wang SZ (1994) Material removal in WEDM of PCD blanks. J Eng Ind 116:363–369.  https://doi.org/10.1115/1.2901953 CrossRefGoogle Scholar
  8. 8.
    Mahapatra SS, Patnaik A (2007) Optimization of wire electrical discharge machining (WEDM) process parameters using Taguchi method. Int J Adv Manuf Technol 34:911–925.  https://doi.org/10.1007/s00170-006-0672-6 CrossRefGoogle Scholar
  9. 9.
    Mahapatra SS, Patnaik A (2006) Parametric optimization of wire electrical discharge machining (WEDM) process using Taguchi method. J Braz Soc Mech Sci Eng XXVIII:422–429CrossRefGoogle Scholar
  10. 10.
    Gong YD, Sun Y, Wen XL et al (2016) Experimental study on accuracy and surface quality of TC2 in LS-WEDM multiple cuts. J Braz Soc Mech Sci Eng 38:2421–2433.  https://doi.org/10.1007/s40430-016-0513-y CrossRefGoogle Scholar
  11. 11.
    Rajyalakshmi G, Venkata Ramaiah P (2013) Multiple process parameter optimization of wire electrical discharge machining on Inconel 825 using Taguchi grey relational analysis. Int J Adv Manuf Technol 69:1249–1262.  https://doi.org/10.1007/s00170-013-5081-z CrossRefGoogle Scholar
  12. 12.
    Pramanik A, Basak AK, Dixit AR, Chattopadhyaya S (2018) Processing of duplex stainless steel by WEDM. Mater Manuf Process 33:1559–1567.  https://doi.org/10.1080/10426914.2018.1453165 CrossRefGoogle Scholar
  13. 13.
    Sun Y, Gong Y, Cheng J, Cai M (2018) Experimental investigation on carbon steel micro-rod machining by LS-WEDT. Mater Manuf Process 33:597–605.  https://doi.org/10.1080/10426914.2017.1339313 CrossRefGoogle Scholar
  14. 14.
    Vignesh M, Ramanujam R, Kuppan P (2018) A comprehensive review on wire electrical discharge based hybrid turning (WEDHT). Mater Today Proc 5:12273–12284.  https://doi.org/10.1016/j.matpr.2018.02.206 CrossRefGoogle Scholar
  15. 15.
    Qu J, Shih AJ, Scattergood RO (2002) Development of the cylindrical wire electrical discharge machining process, part 2: surface integrity and roundness. J Manuf Sci Eng 124:708–714.  https://doi.org/10.1115/1.1475989 CrossRefGoogle Scholar
  16. 16.
    Gjeldum N, Bilic B, Veza I (2014) Investigation and modelling of process parameters and workpiece dimensions influence on material removal rate in CWEDT process. Int J Comput Integr Manuf 28:715–728.  https://doi.org/10.1080/0951192X.2014.900868 CrossRefGoogle Scholar
  17. 17.
    Kanthababu M, Jegaraj JJR, Gowri S (2016) Investigation on material removal rate and surface roughness in electrical discharge turning process of Al 7075-based metal matrix composites. Int J Manuf Technol Manag 30:216–239.  https://doi.org/10.1504/IJMTM.2016.077810 CrossRefGoogle Scholar
  18. 18.
    Kapoor J, Singh S, Khamba JS (2010) Recent developments in wire electrodes for high performance WEDM. Proc World Congr Eng II:2–5.  https://doi.org/10.1016/j.geoforum.2013.09.019 CrossRefGoogle Scholar
  19. 19.
    Antar MT, Soo SL, Aspinwall DK et al (2011) Productivity and workpiece surface integrity when WEDM aerospace alloys using coated wires. Proc Eng 19:3–8.  https://doi.org/10.1016/j.proeng.2011.11.071 CrossRefGoogle Scholar
  20. 20.
    Pramanik A (2016) Electrical discharge machining of MMCs reinforced with very small particles. Mater Manuf Process 31:397–404.  https://doi.org/10.1080/10426914.2015.1048360 CrossRefGoogle Scholar
  21. 21.
    Bisaria H, Shandilya P (2019) Experimental investigation on wire electric discharge machining (WEDM) of Nimonic C-263 superalloy. Mater Manuf Process 34:83–92.  https://doi.org/10.1080/10426914.2018.1532589 CrossRefGoogle Scholar
  22. 22.
    Wang Z, Geng X, Chi G, Wang Y (2014) Surface integrity associated with SiC/Al particulate composite by micro-wire electrical discharge machining. Mater Manuf Process 29:532–539.  https://doi.org/10.1080/10426914.2014.901520 CrossRefGoogle Scholar
  23. 23.
    Dabade UA, Karidkar SS (2016) Analysis of response variables in WEDM of Inconel 718 using Taguchi technique. Proc CIRP 41:886–891.  https://doi.org/10.1016/j.procir.2016.01.026 CrossRefGoogle Scholar
  24. 24.
    Pramanik A, Basak AK (2016) Degradation of wire electrode during electrical discharge machining of metal matrix composites. Wear 346–347:124–131.  https://doi.org/10.1016/j.wear.2015.11.011 CrossRefGoogle Scholar
  25. 25.
    Sreenivasa Rao M, Venkaiah N (2018) Experimental investigations on surface integrity issues of Inconel-690 during wire-cut electrical discharge machining process. Proc Inst Mech Eng Part B J Eng Manuf 232:731–741.  https://doi.org/10.1177/0954405416654092 CrossRefGoogle Scholar
  26. 26.
    Manjaiah M, Narendranath S, Basavarajappa S, Gaitonde VN (2015) Effect of electrode material in wire electro discharge machining characteristics of Ti50Ni50 − xCux shape memory alloy. Precis Eng 41:68–77.  https://doi.org/10.1016/j.dnarep.2009.01.022 CrossRefGoogle Scholar
  27. 27.
    Sharma N, Raj T, Jangra KK (2017) Parameter optimization and experimental study on wire electrical discharge machining of porous Ni 40 Ti 60 alloy. Proc Inst Mech Eng Part B J Eng Manuf 231:956–970.  https://doi.org/10.1177/0954405415577710 CrossRefGoogle Scholar
  28. 28.
    Poroś D, Zaborski S (2009) Semi-empirical model of efficiency of wire electrical discharge machining of hard-to-machine materials. J Mater Process Technol 209:1247–1253.  https://doi.org/10.1016/j.jmatprotec.2008.03.046 CrossRefGoogle Scholar
  29. 29.
    Kuriakose S, Shunmugam MS (2004) Characteristics of wire-electro discharge machined Ti6Al4V surface. Mater Lett 58:2231–2237.  https://doi.org/10.1016/j.matlet.2004.01.037 CrossRefGoogle Scholar
  30. 30.
    Hui Z, Liu Z, Cao Z, Qiu M (2016) Effect of cryogenic cooling of tool electrode on machining titanium alloy (Ti–6Al–4V) during EDM. Mater Manuf Process 31:475–482.  https://doi.org/10.1080/10426914.2015.1037893 CrossRefGoogle Scholar
  31. 31.
    Feng C, Li L, Zhang C et al (2019) Surface characteristics and hydrophobicity of Ni–Ti alloy through magnetic mixed electrical discharge machining. Mater Basel.  https://doi.org/10.3390/ma12030388 CrossRefGoogle Scholar
  32. 32.
    Giridharan A, Samuel GL (2015) Analysis on the effect of discharge energy on machining characteristics of wire electrical discharge turning process. Proc Inst Mech Eng Part B J Eng Manuf.  https://doi.org/10.1177/0954405415615732 CrossRefGoogle Scholar
  33. 33.
    Goyal A, Pandey A, Sharma P (2018) Investigation of surface roughness for Inconel 625 using wire electric discharge machining. IOP Conf Ser Mater Sci Eng.  https://doi.org/10.1088/1757-899X/377/1/012109 CrossRefGoogle Scholar
  34. 34.
    Vignesh M, Ramanujam R (2018) Response optimisation in wire electrical discharge machining of AISI H11 tool steel using Taguchi—GRA approach. Int J Mach Mach Mater 20:474–495Google Scholar
  35. 35.
    Giridharan A, Samuel GL (2013) Investigation into energy consumption, surface roughness and material removal rate of cylindrical components machined using wire electrical discharge turning process. Int J Manuf Technol Manag 27:170–185.  https://doi.org/10.1504/IJMTM.2013.058908 CrossRefGoogle Scholar
  36. 36.
    Sharma P, Chakradhar D, Narendranath S (2016) Effect of wire diameter on surface integrity of wire electrical discharge machined Inconel 706 for gas turbine application. J Manuf Process 24:170–178.  https://doi.org/10.1016/j.jmapro.2016.09.001 CrossRefGoogle Scholar
  37. 37.
    Vignesh M, Ramanujam R (2019) Machining investigation on Ti–6Al–4V alloy using a wire electrical discharge hybrid turning (WEDHT) process. Mater Res Express 6:086563.  https://doi.org/10.1088/2053-1591/ab1996 CrossRefGoogle Scholar

Copyright information

© The Brazilian Society of Mechanical Sciences and Engineering 2019

Authors and Affiliations

  1. 1.Department of Manufacturing Engineering, School of Mechanical Engineering (SMEC)Vellore Institute of Technology (VIT)VelloreIndia

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