Milling of Ti-6Al-4V alloy using hybrid geometry tooling

  • Sana EhsanEmail author
  • Sarmad Ali Khan
  • Mohammad Pervez Mughal
  • Muhammad Qaiser Saleem
  • Nadeem Ahmad Mufti


The novel tool geometry has been fabricated by a tool manufacturer which is termed as “Z Geometry” having a combination of positive and negative rake angles on a single insert. The term Z-geometry was given to the insert due to its appearance like alphabet “Z” character in its side view. With this special geometry, productivity of Ti-6Al-4V alloy can be increased at elevated feed rate. With this Z geometry, a special type of wiper insert having a flat flank face for robust rubbing action was provided to reduce the surface roughness. The combination of inserts, i.e., Z-geometry and wiper insert, is termed as hybrid geometry. This paper involves the evaluation of tool life, material removed, temperature of the machining zone, and surface roughness during the dry milling of Ti-6Al-4V alloy using hybrid geometry tooling at higher feed rates compared to the literature. Feed rate at four levels (0.30, 0.60, 0.90, 1.20 mm/rev) and depth of cut at two levels (0.50, 0.75 mm) were employed while number of wiper inserts were varied from one to two. Maximum material of 108 cm3 was removed in 20 min at a feed rate of 0.60 mm/rev and 0.50-mm depth of cut. Variation in surface roughness was within 0.20 to 0.50 μm over the course of experimentation irrespective of the variables and tool condition.


High feed machining Z-geometry Wiper inserts Ti-6Al-4V 



  1. 1.
    Pramanik (2014) Problems and solutions in machining of titanium alloys. Int J Adv Manuf Technol 70:919–928. CrossRefGoogle Scholar
  2. 2.
    Pervaiz S, Rashid A, Dejab I, Nicolescu M (2014) Influence of tool materials on machinability of titanium- and nickel-based alloys: a review. Mater Manuf Process 29:219–225. CrossRefGoogle Scholar
  3. 3.
    Kuttolamdon MA, Jones JJ, Mears ML, Kurfess T (2010) Investigation of machining of titanium components for lightweight vehicles SAE International. Int Centre Automot ResGoogle Scholar
  4. 4.
    Friedrich CR, Kulkrami VP (2004) Effect of workpiece Spring Back on micro milling force. Microsyst Technol 10:472–477. CrossRefGoogle Scholar
  5. 5.
    Burger U, uttolamadom M, ryan A, Kurfess T (2009) Volumetric flank wear characterization for titanium milling insert tools, conference paper ASME International Manufacturing Science and Engineering ConferenceGoogle Scholar
  6. 6.
    ’Saoubi RM, Axinte D, Soo SL, Nobel C, Attia H, Kappmeyer G, Engin S, Sim W-M (2015) High performance cutting of advanced aerospace alloys and composite materials. CIRP Ann Manuf TechnolGoogle Scholar
  7. 7.
    Carou D, Rubio EM, Agustina B, Marin MM (2017) Experimental study for the effective and sustainable repair and maintenance of bars made of Ti-6Al-4 V alloy. Application to the aeronautic industry. J Clean Prod S0959-6526(17):31265–31269. CrossRefGoogle Scholar
  8. 8.
    Jackson M, Boyer RR (2010) Titanium and it’s alloys: processing, fabrication and mechanical performance. Encycl Aerosp Eng.
  9. 9.
    Kurniawan D, Noordin MY, Sharif S (2010) Hard machining of stainless steel using wiper coated carbide: tool life and surface integrity. Mater Manuf Process 25:370–377CrossRefGoogle Scholar
  10. 10.
    Alokesh P, Islam MN, Basak A, LittleFair G (2013) Machining and tool wear mechanisms. Adv Mater Res Vol 651.
  11. 11.
    Krishnaraj V, Samsudeensadham S, Sindhumathi R, Kuppan P (2014) A study on high-speed end milling of titanium alloy. Procedia Eng 97:251–257. CrossRefGoogle Scholar
  12. 12.
    Shi Q, Liang L, He N, Zhao W, Liu X (2013) Experimental study in high speed milling of titanium alloy TC21. Int J Adv Manuf Technol 64:49–45. CrossRefGoogle Scholar
  13. 13.
    Honghua SU, Peng LIU, Yucan FU, Jinhua XU (2012) Tool life and surface integrity in high speed milling of Ti-6Al-4V with PCD/PCBN tools. Chin J Aeronaut. CrossRefGoogle Scholar
  14. 14.
    Hua J, Shivpuri R (2004) Prediction of Chip morphology and segmentation during the machining of titanium alloys. J Mater Process Technol. CrossRefGoogle Scholar
  15. 15.
    Zang J, Zhao J, Li A, Pang J (2018) Serrated chip formation mechanism analysis for machining of titanium alloy Ti-6Al-4V based on thermal property. Int J Adv Manuf Technol Vol 98:119–127. CrossRefGoogle Scholar
  16. 16.
    Khan SA, Ahmad MA, Saleem MQ, Ghulam Z, Qureshi MAM (2016) High feed turning of AISI D2 tool steel using multi-radii tool inserts: tool life, material removed and workpiece surface Integrity evaluation. Mater Manuf Process. CrossRefGoogle Scholar
  17. 17.
    Mhamdi M-B, Boujelbene M, Bayraktar E, Zghal A (2012) Surface integrity of Ti-6Al-4V in Ball End Milling Physics. Procedia 25:355–362. CrossRefGoogle Scholar
  18. 18.
    Wang ZG, Rahman M, Wong YS (2005) Tool wear characteristics of binderless CBN tools used in high-speed milling of titanium alloys. Wear 258:752–758. CrossRefGoogle Scholar
  19. 19.
    Zhang S, Li JF, Sun J, Jiang F (2010) Tool wear and cutting forces variation in high-speed end-milling Ti-6Al-4V. Int J Adv Manuf Technol 46:69–78. CrossRefGoogle Scholar
  20. 20.
    Anhai Li, Jun Zhao,·Dong Wang, Jiabang Zhao, Yongwang Dong (2013) Failure mechanisms of PCD tool in high-speed face milling of Ti-6Al-4 V alloy. Int J Adv Manuf Technol 67:1959-1966. doi: Scholar
  21. 21.
    Ali MH, Khidhir BA, Ansari MNM, Mohamed B (2013) FEM to predict the effect of feed rate on surface roughness with cutting force during face milling of titanium alloy. Hous Build Natl Res Center J.
  22. 22.
    Zhao X, Ke W, Zhang S, Zheng W (2016) Potential failure cause analysis of Tungsten Carbide end mills for titanium alloy machining. Eng Fail Anal 66:321–327. CrossRefGoogle Scholar
  23. 23.
    Luo M, Wang J, Wu B, Zhang D (2017) Effects of cutting parameters on tool insert wear in end milling of titanium alloy Ti-6Al-4 V. Chin J Mech 30:53–59. CrossRefGoogle Scholar
  24. 24.
    Hongmin X, Yaoyao S (2016) Surface morphology and affected layer in disc-milling and grooving of titanium alloy. Rare Metal Mater Eng Vol 45(12):3050–3056CrossRefGoogle Scholar
  25. 25.
    Karkalos NE, Galanis NI, Markopoulos AP (2016) Surface roughness prediction for the milling of Ti-6Al-4V ELI alloy with the use of statistical and soft computing technique. Measurement 90:25–35CrossRefGoogle Scholar
  26. 26.
    Oosthuizen GA, Akdogan G, Treurnicht N (2011) The performance of PCD tools in high-speed milling of Ti-6Al-4V. Int J Adv Manuf Technol. CrossRefGoogle Scholar
  27. 27.
    Li A, Zhao J, Luo H, Pei Z, Wang Z (2012) Progressive tool failure in high-speed dry milling of Ti-6Al-4V alloy with coated carbide tool. Int J Adv Manuf Technol 58:465–478. CrossRefGoogle Scholar
  28. 28.
    Ganguli S, Kapoor SG (2016) Improving the performance of milling of titanium alloys using the atomization-based cutting fluid application system. J Manuf Process 23:29–36. CrossRefGoogle Scholar
  29. 29.
    Sadeghi MH, Haddad MJ, Tawakoli T, Emami M (2009) Minimal quantity lubrication-MQL in grinding of Ti-6Al-4V titanium alloy. Int J Adv Manuf Technol 44:487–500. CrossRefGoogle Scholar
  30. 30.
    D’Addona DM, Raykar SJ (2016) Analysis of surface roughness in hard turning using wiper insert geometry. Procedia CIRP 41:841–846. CrossRefGoogle Scholar
  31. 31.
    Hanamantrao JA, Jadhav BR (2014) Comparative assessment of wiper and standard insert on surface roughness in hard turning of EN-9 steel. Int J Mech Prod Eng ISSN: 2330-2092Google Scholar
  32. 32.
    ISO 8688-1:1989 (1989) Tool life testing in milling, part 1, Face milling. International Organization of Standardization, GenevaGoogle Scholar
  33. 33.
    Jaffery SHI, Khan M, Sheikh NA, Mativenga P (2013) Wear mechanism analysis in milling of Ti-6Al-4V alloy. J Eng Manuf. CrossRefGoogle Scholar
  34. 34.
    Di C, Dinghua Z, Wu B, Luo M (2017) An investigation of temperature and heat partition on tool-chip interface in milling of difficult-to-machine materials. Procedia. CrossRefGoogle Scholar
  35. 35.
    Sulaiman S, Roshan A, Borazjani S (2013) Effect of cutting parameters on cutting temperature of TiAl6V4 alloy. Appl Mech Mater 392:68–72. CrossRefGoogle Scholar
  36. 36.
    Günay M, Korkut İ, Aslan E, Şeker U (2005) Experimental investigation of the effect of cutting tool rake angle on main cutting force. J Mater Process Technol. CrossRefGoogle Scholar
  37. 37.
    Özel T, Karpat Y, Luís F, Davim JP (2007) Modelling of surface finish and tool flank wear in turning of AISI D2 steel with ceramic wiper inserts. J Mater Process Technol 189:192–198CrossRefGoogle Scholar
  38. 38.
    Saini S, Ahuja IS, Sharma VS (2012) Residual stresses, surface roughness, and tool wear in hard turning: a comprehensive review. Mater Manuf Process. CrossRefGoogle Scholar
  39. 39.
    de Martini Fernandes L, Lopes JC, Ribeiro FSF, Gallo R, Razuk HC, de Angelo Sanchez LE, de Agular PR, de Mello HJ, Bianchi EC (2019) Thermal model for surface grinding application. Int J Adv Manuf Technol 104:2783–2793. CrossRefGoogle Scholar
  40. 40.
    Irani RA, Bauer RJ, Warkentin A (2005) A review of cutting fluid application in the grinding process. Int J Mach Tool Manu. CrossRefGoogle Scholar
  41. 41.
    Lopes JC, de Martini Fernandes L, Domingues BB, Canarim RC, da Penha Cindra Fonseca M, de Angelo Sanchez LE, de Oiveira RFM, de Mello HJ, Agular PR, Bianchi EC (2019) Effect of CBN grain friability in hardened steel plunge grinding. Int J Adv Manuf Technol 103:1567–1577. CrossRefGoogle Scholar
  42. 42.
    Boswell B, Islam MN, Davies IJ, Ginting YR, Ong AK (2017) A review identifying the effectiveness of minimum quantity lubrication (MQL) during conventional machining. Int J Adv Manuf Technol. CrossRefGoogle Scholar
  43. 43.
    Javaroni RL, Lopes JC, Sato BK, Sanchez LEA, Mello HJ, Agular PR, Bianchi EC (2019) Minimum quantity of Lubrication (MQL) as an eco-friendly alternative to the cutting fluids in advanced ceramics grinding. Int J Adv Manuf Technol 103:2809–2819. CrossRefGoogle Scholar
  44. 44.
    Rodriguez RL, Lopes JC, Mancini SD, de Angelo Sanchez LE, de Almeida Varasquim FMF, Volpato RS, de Mello HJ, de Agular PR, Bianchi EC (2019) Contribution for minimization the usage of cutting fluids in CFRP grinding. Int J Adv Manuf Technol 103:487–497. CrossRefGoogle Scholar

Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  • Sana Ehsan
    • 1
    Email author
  • Sarmad Ali Khan
    • 1
  • Mohammad Pervez Mughal
    • 1
  • Muhammad Qaiser Saleem
    • 1
  • Nadeem Ahmad Mufti
    • 1
  1. 1.Department of Industrial and Manufacturing EngineeringUniversity of Engineering and TechnologyLahorePakistan

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