Abstract:When using AdvantEdge software to carry out cutting simulation experiment,the toolchip friction coefficient has obvious influence on the simulation results,but the existing finite element software does not provide the toolchip friction coefficient database.In order to establish a method to determine the toolchip friction coefficient by the simulation experiment of oblique turning based on AdvantEedge,the calculation method of friction based on oblique turning was established.Then the 3D oblique turning simulation model was established with AdvantEdge,and by setting different cutting speed,cutting depth,feed rate and friction coefficient,the simulated orthogonal experiment based on AdvantEdge the were carried out,and the empirical formula of the toolchip friction coefficient was obtained.In order to verify the correctness of the empirical calculation formula of toolchip friction coefficient,the orthogonal experiment of oblique turning with different cutting speed,cutting depth and feed rate was set to obtain the cutting force data,and the corresponding toolchip friction coefficient was obtained based on the empirical calculation formula of friction coefficient.By modifying the toolchip friction coefficient parameters in AdvantEdge by the calculated toolchip friction coefficient data,the residual stress cutting simulation experiment was carried out.The error of the residual stress obtained by simulation experiment and actual cutting experiment is less than 10%,which proves that the presented method of determining toolchip friction coefficient is correct.