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A Study of the Effect of Conventional Drilling and Helical Milling in Surface Quality in Titanium Ti-6Al-4V and Ti-6AL-7Nb Alloys for Medical Applications

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Abstract

In the manufacturing of a medical device may occur the need to make a hole with a specific function. Among current methods, conventional drilling (CD) referred in this work as drilling (D) and helical milling (HM) are two options with different potential. When making the hole, it is important to choose the most suitable method to obtain the desired geometry and ensure the functionality of the device. This work aims to analyze surface parameters such as arithmetic average height (Ra), the maximum height of the profile (Rt), the average peak to valley height (RzDIN), chip formation and the geometric deviation of holes obtained by the previously referred manufacturing processes. The specimens, with cylindrical geometry, were made of titanium alloys, Ti-6Al-4V and Ti-6Al-7Nb, currently used in the manufacture of medical devices. For this purpose, holes were made in a machining center with different feed rates (F) for both methods and in the value of vertical step (ap) in HM. The results obtained demonstrate that at lower F and ap, HM presents better results. The Ti-6Al-7Nb alloy presents better roughness results compared to Ti-6Al-4V, validating it as a material able to be used in medical devices according to the fact that a lower roughness is associated with higher corrosion resistance and fewer fatigue problems derived from it in components. By the work carried out, it can be concluded that the roughness values obtained in HM are lower than those obtained by D making HM as a better option in hole making.

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(adapted image from Geier et al. [22])

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References

  1. Barman, A.; Adhikari, R.; Bolar, G.: Evaluation of conventional drilling and helical milling for processing of holes in titanium alloy Ti6Al4V. Mater. Today Proc. 28, 4–9 (2020)

    Article  Google Scholar 

  2. Sun, D.; et al.: Hole-making processes and their impacts on the microstructure and fatigue response of aircraft alloys. Int. J. Adv. Manuf. Technol. 94(5–8), 1719–1726 (2018)

    Article  Google Scholar 

  3. Wang, C.; Zhao, J.; Zhou, Y.: Mechanics and dynamics study of helical milling process for nickel-based superalloy. Int. J. Adv. Manuf. Technol. 106(5–6), 2305–2316 (2020)

    Article  Google Scholar 

  4. Da Qin, X.; Sun, X.T.; Wang, Q.; Chen, S.M.; Li, H.: comparative study on helical milling and drilling of Ti-6Al-4V. Key Eng. Mater. 499, 200–204 (2012)

    Article  Google Scholar 

  5. Qin, X.; et al.: Feasibility study on the minimum quantity lubrication in high-speed helical milling of Ti-6Al-4 V. J. Adv. Mech. Des. Syst. Manuf. 6(7), 1222–1233 (2012)

    Article  Google Scholar 

  6. Li, H.; He, G.; Qin, X.; Wang, G.; Lu, C.; Gui, L.: Tool wear and hole quality investigation in dry helical milling of Ti-6Al-4V alloy. Int. J. Adv. Manuf. Technol. 71(5–8), 1511–1523 (2014)

    Article  Google Scholar 

  7. Liu, C.; Wang, G.; Dargusch, M.S.: Modelling, simulation and experimental investigation of cutting forces during helical milling operations. Int. J. Adv. Manuf. Technol. 63(9–12), 839–850 (2012)

    Article  Google Scholar 

  8. Tönshoff, H.K.; Friemuth, T.; Andrae, P.; Groppe, M.: Circular milling replacing drilling and reaming. Mach. Holes Dev. Drill. Technol. CIRP Ann. - Manuf. Technol. 43(2), 551–561 (1994)

    Article  Google Scholar 

  9. Cheng, X.; Zhang, X.; Tian, Y.; Zheng, G.; Yang, X.: Study on micro helical milling of small holes with flat end mills. Int. J. Adv. Manuf. Technol. 97(5–8), 3119–3128 (2018)

    Article  Google Scholar 

  10. Li, Z.; Liu, Q.; Ming, X.; Wang, X.; Dong, Y.: Cutting force prediction and analytical solution of regenerative chatter stability for helical milling operation. Int. J. Adv. Manuf. Technol. 73(1–4), 433–442 (2014)

    Article  Google Scholar 

  11. Brinksmeier, E.; Fangmann, S.; Meyer, I.: Orbital drilling kinematics. Prod. Eng. 2(3), 277–283 (2008)

    Article  Google Scholar 

  12. Denkena, B.; De Leon, L.; Dege, J.H.: Kinematik und Spanungsformen beim Zirkularfräsen. Materwiss. Werksttech. 39(9), 610–615 (2008)

    Article  Google Scholar 

  13. Uddin, M.S.; Pham, B.; Sarhan, A.; Basak, A.; Pramanik, A.: Comparative study between wear of uncoated and TiAlN-coated carbide tools in milling of Ti6Al4 V. Adv. Manuf. 5(1), 83–91 (2017)

    Article  Google Scholar 

  14. Sharif, S.; Rahim, E.A.: Performance of coated- and uncoated-carbide tools when drilling titanium alloy-Ti-6Al4V. J. Mater. Process. Technol. 185(1–3), 72–76 (2007)

    Article  Google Scholar 

  15. Zhao, Q.; Qin, X.; Ji, C.; Li, Y.; Sun, D.; Jin, Y.: Tool life and hole surface integrity studies for hole-making of Ti6Al4V alloy. Int. J. Adv. Manuf. Technol. 79(5–8), 1017–1026 (2015)

    Article  Google Scholar 

  16. Olvera, D.; De Lacalle, L.N.L.; Urbikain, G.; Lamikiz, A.; Rodal, P.; Zamakona, I.: Hole making using ball helical milling on titanium alloys. Mach. Sci. Technol. 16(2), 173–188 (2012)

    Article  Google Scholar 

  17. Nath, C.; Rahman, M.: Effect of machining parameters in ultrasonic vibration cutting. Int. J. Mach. Tools Manuf 48(9), 965–974 (2008)

    Article  Google Scholar 

  18. Chen, G.; Ren, C.; Zou, Y.; Qin, X.; Lu, L.; Li, S.: Mechanism for material removal in ultrasonic vibration helical milling of Ti–6Al–4V alloy. Int. J. Mach. Tools Manuf. 138, 1–13 (2019)

    Article  Google Scholar 

  19. Chen, G.; Zou, Y.; Qin, X.; Liu, J.; Feng, Q.; Ren, C.: Geometrical texture and surface integrity in helical milling and ultrasonic vibration helical milling of Ti-6Al-4V alloy. J. Mater. Process. Technol. 278, 116494 (2020)

    Article  Google Scholar 

  20. Denkena, B.; Boehnke, D.; Dege, J.H.: Helical milling of CFRP-titanium layer compounds. CIRP J. Manuf. Sci. Technol. 1(2), 64–69 (2008)

    Article  Google Scholar 

  21. Tian, Y.; Liu, Y.; Wang, F.; Jing, X.; Zhang, D.; Liu, X.: Modeling and analyses of helical milling process. Int. J. Adv. Manuf. Technol. 90(1–4), 1003–1022 (2017)

    Article  Google Scholar 

  22. Geier, N.; Szalay, T.: Optimisation of process parameters for the orbital and conventional drilling of uni-directional carbon fibre-reinforced polymers (UD-CFRP). Meas. J. Int. Meas. Confed. 110, 319–334 (2017)

    Article  Google Scholar 

  23. Challa, V.S.A.; Mali, S.; Misra, R.D.K.: Reduced toxicity and superior cellular response of preosteoblasts to Ti-6Al-7Nb alloy and comparison with Ti-6Al-4V. J. Biomed. Mater. Res. - Part A 101(7), 2083–2089 (2013)

    Article  Google Scholar 

  24. Kunčická, L.; Kocich, R.; Lowe, T.C.: Advances in metals and alloys for joint replacement. Prog. Mater Sci. 88, 232–280 (2017)

    Article  Google Scholar 

  25. Bordin, A.; Bruschi, S.; Ghiotti, A.: The effect of cutting speed and feed rate on the surface integrity in dry turning of CoCrMo alloy. Procedia CIRP 13, 219–224 (2014)

    Article  Google Scholar 

  26. Huang, H.H.; Ho, C.T.; Lee, T.H.; Lee, T.L.; Liao, K.K.; Chen, F.L.: Effect of surface roughness of ground titanium on initial cell adhesion. Biomol. Eng. 21(3–5), 93–97 (2004)

    Article  Google Scholar 

  27. Ozturk, O.M.; Kilic, Z.M.; Altintas, Y.: “Mechanics and dynamics of orbital drilling operations. Int. J. Mach. Tools Manuf. 129, 37–47 (2018)

    Article  Google Scholar 

Download references

Acknowledgements

The authors acknowledge Project No. 031556-FCT/SAICT/2017, FAMASI—Sustainable and intelligent manufacturing by machining financed by the Foundation for Science and Technology (FCT), POCI, Portugal, in the scope of TEMA, Centre for Mechanical Technology and Automation—UID/EMS/00481/2013. The authors also acknowledge TiFast S.R.L, from Italy, for providing the Ti alloys.

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Festas, A.J., Pereira, R.B., Ramos, A. et al. A Study of the Effect of Conventional Drilling and Helical Milling in Surface Quality in Titanium Ti-6Al-4V and Ti-6AL-7Nb Alloys for Medical Applications. Arab J Sci Eng 46, 2361–2369 (2021). https://doi.org/10.1007/s13369-020-05047-8

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  • DOI: https://doi.org/10.1007/s13369-020-05047-8

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