Research on influence of temperature on a precision forging process of blade with a tenon

The blade precision forging process is a forming process with high temperature and large plastic deformation. Interaction of deformation and heat conduction leads to large uneven distribution of temperature. The unevenness of temperature distribution has a great effect on mechanical properties and the microstructure of materials. So it is necessary to consider the influence of temperature on the precision forging process of blades. Taking a blade with a tenon into consideration, a three-dimensional mechanical model in precision forging is built up. The distribution laws of temperature field and the influence of the temperature on the equivalent stress in the process are obtained by using three-dimensional coupled thermomechanical finite element code developed by the authors. The results illustrate that the influence of the temperature field on the blade forging process is considerable. The achievements of predicting microstructure and mechanical properties for forged blades is significant.