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

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...

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Bibliographic Details
Published in:Key engineering materials 2020-02, Vol.830, p.93-100
Main Authors: Joun, Man Soo, Hwang, Tae Min, Yoo, Jae Dong
Format: Article
Language:English
Subjects:
Aluminum alloys
Aluminum base alloys
Cold forging
Deformation
Die forging
Room temperature
Sensitivity analysis
Strain rate
Temperature effects
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Summary: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.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.830.93