Integrated Microstructural Simulation for Multistep Forming Processes

摘要

This paper presents the integration of two physical based models into a 3-dimensional finite element (FE) simulation to describe the microstructure evolution during a multi-pass rolling process on AA3104. To model the main restoration processes during hot working conditions, i.e. dynamic recovery (DRV) and after the forming process static recrystallization (SRX) an analytical three-parameter-model and a modified 3D-cellular automaton were applied. Both models were integrated or linked into a FE-program. A two pass rolling sequence was carried out and simulated thermo-mechanically using the FE-program LARSTRAN / SHAPE. In addition to the determination of plastomechanical values of the rolling process, the dynamic and static microstructural events were simulated and compared with the experimental results.