Prediction of critical cutting conditions of adiabatic shear of Ti6Al4V in high speed cutting

Considering the influence of compression stress, a critical criterion of adiabatic shear in orthogonal high speed cutting is given by linear perturbation on the compress-shear deformation continuum mechanics basic equations of the primary shear zone. Combining with the relationship of cutting conditions and deformation ones, also the materials constitutive relationship, a prediction model, which expressed by cutting conditions and materials properties is established. The critical cutting conditions of adiabatic shear in high speed cutting of Ti6A14V are predicted by this model. The comparison of prediction results and that of experiments proves that this method is available.