Abstract: With the development of computer technology and finite element method, the priority research area of plastic forming has focused on 3D FE simulation of forming processes for components with complicated geometrical shape. These processes have complex deforming mechanism, and different sections have different deforming characteristics. Therefore, for making a simple, convenient, and practical analysis of its deforming law, how to obtain deformation information of key sections from the results of 3D FE simulation has become one of problems urgently to be solved. So, a method of obtaining deformation information by tracing deformation from sections for 3D FE simulation has been proposed. From the deformation information got by this method, the deformation law of key locations and the whole deforming body can be obtained. This method can also help to compare the result from FE simulation with that from physical modeling. Key procedures of this method have been presented in detail, and it has been tested by applying to 3D FE simulation of precision forging of the blade with a damper platform. The result shows that the method is practicable and reliable, and it can also be applied to 3D FE simulation of plastic forming processes of other components.

Key words: Plastic forming, 3D FE simulation, Deformation information