Abstract
A numerical simulation of multi-stage heavy forging process using the finite element method (FEM) is presented in this study. The process of heavy forging is highly non-linear, where both microstructure and boundary conditions are altered by plastic deformation during forming. Therefore, it is necessary to understand the problem of plastic deformation in heavy forging. In order to investigate deformation behavior and microstructure evolution in heavy forging, a constitutive equation considering the effects of strain hardening and dynamic softening of the IN718 alloy is built. The constitutive equation and microstructure models are implemented into the finite element code to simulate deformation behavior and microstructure evolution in the rotary forging of heavy container head. As a result, variations of flow stress, effective strain, temperature, damage, and grain size in every stage are predicted.
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Ma, Q., Lin, Zq. & Yu, Zq. Prediction of deformation behavior and microstructure evolution in heavy forging by FEM. Int J Adv Manuf Technol 40, 253–260 (2009). https://doi.org/10.1007/s00170-007-1337-9
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DOI: https://doi.org/10.1007/s00170-007-1337-9