Improving machinability of titanium alloy by electro-pulsing treatment in ultra-precision machining

  • Yonggou Lou
  • Hongbing Wu


Titanium alloys have promising properties for optical applications but are difficult to machine. This paper proposes a new method for improving the machinability of titanium alloys in ultra-precision machining by applying electro-pulsing treatment (EPT). EPT is carried out to improve the plasticity of a typical titanium alloy, Ti6Al4V. Hardness and compression tests confirmed that yield stress and hardness are both reduced after EPT. Finite element modelling and ultra-precision machining were performed to study the machinability of Ti6Al4V before and after EPT. Lower cutting forces with lower power spectral densities, more continuous chips and better surface finish were obtained after EPT.


Ultra-precision machining Electro-pulsing treatment Machinability Surface roughness Titanium alloy 


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  1. 1.
    Abbasi SA, Ma PFY, Zhang J, Yu D, Wu Z (2016) Influence of microstructure and hardness on machinability of heat-treated titanium alloy Ti-6Al-4V in end milling with polycrystalline diamond tools. Int J Adv Manuf Technol 86:1393–1405CrossRefGoogle Scholar
  2. 2.
    Safari H, Sharif S, Izman S, Jafari H (2015) Surface integrity characterization in high-speed dry end milling of Ti-6Al-4V titanium alloy. Int J Adv Manuf Technol 78(2015):651–657CrossRefGoogle Scholar
  3. 3.
    Zareena AR, Veldhuis SC (2012) Tool wear mechanisms and tool life enhancement in ultra-precision machining of titanium. J Mater Process Tech 212(3):560–570CrossRefGoogle Scholar
  4. 4.
    Wan Y, Wang T, Wang Z, Jin Y (2017) Zhanqiang Liu, Construction and characterization of micro/nano-topography on titanium alloy formed by micro-milling and anodic oxidation. Int J Adv Manuf Technol. doi: 10.1007/s00170-017-0323-0
  5. 5.
    Sakamoto, S., Shinozaki, A., Yasui, H. (2005) Possibility of ultra-precision cutting of titanium alloy with diamond tool. ASPE annual.Google Scholar
  6. 6.
    Shinozaki A (2006) Attempt on ultra-precision cutting of titanium alloy with diamond tool. J Japan Soc Prec Eng 72(12):1505–1509Google Scholar
  7. 7.
    Yamaguchi H, Srivastava AK, Tan MA, Riveros RE, Hashimoto F (2012) Magnetic abrasive finishing of cutting tools for machining of titanium alloys. CIRP Ann-Manuf Technol 61(1):311–314CrossRefGoogle Scholar
  8. 8.
    Ruibin X, Wu H (2016) Study on cutting mechanism of Ti6Al4V in ultra-precision machining. Int J Adv Manuf Technol 86:1311–1317CrossRefGoogle Scholar
  9. 9.
    Song H, Wang ZJ, Gao TJ (2007) Effect of high density electropulsing treatment on formability of TC4 titanium alloy sheet. Trans Nonferrous Metals Soc China 17(1):87–92CrossRefGoogle Scholar
  10. 10.
    Grzesik W (2017) Advanced machining processes of metallic materials. ElsevierGoogle Scholar
  11. 11.
    Zhu YH, To, S, Lee WB, Liu XM, Jiang YB, Tang GY (2009) Effects of dynamic electropulsing on microstructure and elongation of a Zn–Al alloy. Mater Sci Eng A 501(1):125–132CrossRefGoogle Scholar
  12. 12.
    Johnson R., Cook W.K. (1983) A constitutive model and data for metals subjected to large strains high strain rates and high temperatures. The 7th international symposium on balistics, the Hague: pp.541–547Google Scholar
  13. 13.
    Johnson GR, Cook WH (1985) Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures. Eng Fracture Mech 21:31–48CrossRefGoogle Scholar
  14. 14.
    Corduan N, Himbart T, Poulachon G, Dessoly M, Lambertin M, Vigneau J, Payoux B (2003) Wear mechanisms of new tool materials for Ti-6AI-4V high performance machining. CIRP Ann-Manu Tech 52(1):73–76CrossRefGoogle Scholar
  15. 15.
    Grzesik W, Rech J, Żak K (2015) Characterization of surface textures generated on hardened steel parts in high-precision machining operations. Int J Adv Manuf Technol 78:2049–2056CrossRefGoogle Scholar

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© Springer-Verlag London Ltd. 2017

Authors and Affiliations

  1. 1.School of HaitianNingbo PolytechnicNingboChina
  2. 2.College of Mechanical and Energy Engineering, Ningbo Institute of TechnologyZhejiang UniversityNingboChina

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