Deep-hole gun drilling mechanics model of Ti6Al4V alloy based on Johnson and Cook flow stress model

  • Liang LiEmail author
  • Ning He
  • XiuQing Hao
  • YinFei Yang


Drilling mechanics model has always been the key and difficult point in the research field of gun drilling. In this paper, through theoretical analysis and processing experiments, the gun drilling mechanics model of Ti6Al4V titanium alloy is studied. On the one hand, based on the Oxley cutting model and the Johnson-Cook flow stress model, this paper takes Ti6Al4V titanium alloy as the research object and use the “microelement” method to establish the mechanical model of gun drilling, which includes cutting parameters, tool geometric parameters and material mechanical properties. On the other hand, the drilling model considers the influence of process damping and verified by experiments. The results show the calculated value of the model is consistent with the experimental value and the error is within the acceptable range. The model provides a theoretical basis for the prediction of drilling force, tool analysis and straightness error analysis.


Gun drill Deep-hole drilling Ti6Al4V titanium alloy Mechanics model Processing experiments 



Part of this work was supported by the National Natural Science Foundation of China (No. 51505409).


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

Authors and Affiliations

  1. 1.College of Mechanical EngineeringYancheng Institute of technologyYanchengPeople’s Republic of China
  2. 2.College of Mechanical and Electrical EngineeringNanjing University of Aeronautics and AstronauticsNanjingPeople’s Republic of China

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