Predictions of Maximum Forging load and Effective Stress for Strain-Hardening Material of Near Net-Shape Helical Gear Forging

摘要

In this paper,the use of the finite element method in conjunction with abductive network is presented to predict the maximum forging force and effective stress for strainhardening material during near net-shape helical forging. The maximum forging load and effective stress are influenced by the material properties such as yielding stress,strength coefficient and strain hardening exponent. A finite element method is used to investigate the clamping-type forging of helical gear. In order to verify the prediction of FEM simulation for forging load,the experimental data are compared with the results of current simulation. A finite element analysis is also utilized to investigate the material properties on forging load and maximum effective stres. Additionally,the abductive network was applied to synthesize the data sets obtained from the numerical simulation. The prediction models are then established for the maximum forging load and maximum effective stress of near net-shape helical gear forging under a suitable range of material parameters.