Investigation and modelling of the cutting forces in turning process of the Ti-6Al-4V and Ti-6Al-7Nb titanium alloys

  • Sérgio Luiz Moni Ribeiro Filho
  • Robson Bruno Dutra Pereira
  • Carlos Henrique Lauro
  • Lincoln Cardoso BrandãoEmail author


The algebraic and statistical models have assumed an essential role to better understand the relationship of the cutting parameters and their interactions in the cutting forces. This work evaluated the effects of cutting speed, feed rate, and depth of cut on the cutting force (Fc) and specific cutting force (kS) in the turning of the Ti-6Al-4V and Ti-6Al-7Nb titanium alloys. The experimental tests were carried out with two different insert tools under dry conditions. A response surface method was employed for modelling and better understanding the correlation between the cutting forces and the independent parameters. A central composite design was used as experimental planning. The adequacy and significance of the response model were identified using the analysis of variance (ANOVA). The developed RSM models showed a good degree of fit, which indicates that the cutting force models can be effectively used to estimate the responses in the turning of the Ti-6Al-4V and Ti-6Al-7Nb titanium alloys. The lowest force components were found when the depth of cut and feed rate levels are small and cutting speed is high. Furthermore, the depth of cut was the most significant factor influencing the cutting efforts. Finally, kS values were mainly influenced by chip thickness, while the cutting speed has not affected the kS data.


Ti-6Al-4V Ti-6Al-7Nb Turning Response surface method 


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Funding information

The authors were financially supported by the CNPq - National Research Council and the FAPEMIG - Foundation of Support to the Research of the Minas Gerais State in the Project APQ-01987/14.


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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  • Sérgio Luiz Moni Ribeiro Filho
    • 1
  • Robson Bruno Dutra Pereira
    • 1
  • Carlos Henrique Lauro
    • 1
  • Lincoln Cardoso Brandão
    • 1
    Email author
  1. 1.Department of Mechanical Engineering, Centre for Innovation in Sustainable ManufacturingFederal University of São João del-ReiSão João del ReiBrazil

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