Microstructure Evolution of Dynamic Recrystallization of 42CrMo Steel during Multi-Stage Forging by FEM

Abstract:

Different process steps of the workpiece have different effects on the microstructure in the multi-stage forging. In this study, the effect of four different process steps of steering arm on microstructure was studied by FEM. Results have showed that upsetting is beneficial to refine the microstructure as well as finish forging. Especially drawing can make the distribution of microstructure homogeneous while bending has less effect on it. The already-designed forging process for steering arm was reasonable based on the simulation. Eventually, the grain size level of the steering arm was tested as 6.5 based on the conventional standard.

• Periodical: Applied Mechanics and Materials (Volumes 217-219)
• Pages: 415-418
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.217-219.415
• Online since: November 2012
• Authors: Dong Yang, Wen Lin Chen, Rui Zhou, Shao Yang Wang, Yong Ma, Xiang Zan, Li Jing Peng
• Keywords: Dynamic Recrystallization (DRX), Finite Element Method (FEM), Microstructure Evolution, Multi-Stage Forging

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