Elastoplastic finite element prediction of plastic flow problem can also be conducted considering elastic deformation of dies due to not only mechanical load but also shrink fit. This example is one of typical applications to axi-symmetric forging process. All the solutions of dies were obtained at the same time with plastic deformation of the material.…

This figures simulated a scroll forging process under rigid-die or elastic-die assumptions to reveal the die fracture occurring at the root of wrap. The major reason of the fracture lies in the unbalanced filling of material between the wraps. As a whole the effect of the elastic-die is negligible. From more detailed observation, however, we…

The figures compares the predictions of an axi-symmetric hot forging process between with and without considerations of die elastic deformation. The process does not allow any flash, that is, it is a flashless closed-die forging process. Of course, grain flows of them are very close to each other. However, forming loads at the final stroke…

Recently some special functions of precision simulation of forging processes with elastic deformation of dies considered was improved, which are now ready to be supported as beta-version for users. These predictions are typical applications to axi-symmetric cold forging processes. Die structural analysis of the left predictions was conducted using the post-processor after simulating the forging…

Effective Stress