Study of Milling Speed Effect on Uneven Fields of Stress, Strain, Strain Rate and Temperature in the Processing of Hardened Steel SKD11

摘要

The present paper proposes the method of finite element simulation and experiment analysis to determine the plastic strain, stress, plastic strain rate and temperature in the process of milling hardened steel SKD11. This method is based on analytical modeling of a simplified oblique cutting process in combination with the obtained results of the commercial finite element software application. The basic mechanics governing the primary shear zone have been evaluated for a chip formation process and experimental data. The analytical fields of stress, strain, strain rate and temperature have been theoretically derived from experimental data of the main shear plane. The effect of cutting speed on the stress, strain, strain rate and temperature is studied in the primary shear zone of milling hardened steel SKD11 was observed. The comparison shows that finite element modulation can be used to determine fields of stress, strain, strain rate and temperature in the main shear plane. The good agreement between experimental data and finite element method (FEM) result demonstrates that using the finite element model is valid. The fields of stress, strain, strain rate, and temperature can be predicted.