Finite Element Prediction of Temperature Variation of Material and Dies in Aluminum Forging

Abstract:

Investigation into behaviors of aluminum alloy to be metal formed at the room temperature is conducted in this study. An index is used to evaluate the sensitivity of temperature, that is, index of relative normalized temperature rise to steel called normalized temperature rise index per steel which helps researchers to obtain some insight on new materials based on experiences of steel forging. An investigation to an aluminum alloy shows that the index is quite high, implying that temperature effect as well as rate-dependence effect on the forming processes of aluminum alloy at the room temperature cannot be neglected. Some details of thermomechanical predictions of a relatively high-speed automatic multi-stage forging process of a yoke with highly deformed region are given to reveal the importance of temperature and/or strain rate even in cold forging of aluminum alloy parts with high speed and high strain.

• Periodical: Key Engineering Materials (Volume 830)
• Pages: 93-100
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.830.93
• Online since: February 2020
• Authors: Jae Dong Yoo, Tae Min Hwang, Man Soo Joun*
• Keywords: Aluminum Alloy, Cold Forging, Index of Normalized Temperature Rise, Non-Isothermal Analysis

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