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The blade precision forging process is a forming process with high temperature and large plas- tic deformation. Interaction of deformation and heat conduction leads to large uneven distribu- tion 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 tem- perature on the precision forging process of blades. Taking a blade with a tenon into considera- tion, a 3D mechanical model in precision forging is built up. The distribution laws of tempera- ture field and the influence of the temperature on the equivalent stress in the process are ob- tained by using 3-D coupled thermo-mechanical FEM code developed by the authors. The re- sults obtained 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.
The blade precision forging process is a forming process with high temperature and large plas- tic deformation. The interaction of deformation and heat conduction leads to large uneven distribu- tion 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 tem- perature on the precision forging process of blades. Taking a blade with a tenon into considera tion, a 3D mechanical model in precision forging is built up. The distribution laws of tempera - ture field and the influence of the temperature on the equivalent stress in the process are ob- tained by using 3-D coupled thermo-mechanical FEM code developed by the authors. The re- sults obtained 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.