3D Coupled Thermo-Mechanical FEM Simulation in Precision Forging Process of Blade with Tenon

A blade is one of the most important mechanical components in an aero-engine. Precision forging of blades is a tendency for development of blade-forging technology. However, precision forging process of blades involves high temperature and large deformation. There is heat transfer on billet-die interface, and plastic work and frictional work is turned to heat; all these factors make the temperature field of billet continually change. The change of temperature field will affect the deformation behavior of a billet, and the mechanical capability and microstructure of a blade. Therefore, the forging process of blade with a tenon is simulated and analyzed using a 3D-CTM(3-Dimensional Coupled Thermo-Mechanical Forming Simulation) in order to obtain forming laws in the precision forging process of blade. This study is important to optimization of precision forging technology and the development of its precision forging.