Feasibility Study on Die Quenching of AA2024 Aluminum Alloy Billet Using Servo Press

Jae Yeol Jeon; Ryo Matsumoto; Hiroshi Utsunomiya

doi:10.4028/www.scientific.net/AMR.922.286

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Feasibility Study on Die Quenching of AA2024 Aluminum Alloy Billet Using Servo Press
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 922Feasibility Study on Die Quenching of AA2024...

Feasibility Study on Die Quenching of AA2024 Aluminum Alloy Billet Using Servo Press

Abstract:

Die quenching of an AA2024 aluminum alloy billet was carried out using a servo press with ram motion control of WC-20mass%Co dies directly after solution heat treatment (SHT). The cylindrical billets were heated in an electric furnace and transferred to the press, then subjected to uniaxial compression with a reduction in height (Δh/h₀) of 2%, 5% or 10% after SHT at 773 K or 823 K. The die quenching was successfully carried out without the precipitation hardening only on the billet after SHT at 823 K by sandwiching for 8 s. The subsequent artificial aging behavior at 463 K in an oil bath was investigated. It is found that the precipitation kinetics is accelerated in the die-quenched billets after SHT at 823 K. The peak hardness of the billet processed with 5% after SHT at 823 K is as high as that of the water-quenched billet, HV 149.0.

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Periodical:

Advanced Materials Research (Volume 922)

Pages:

286-291

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.922.286

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Online since:

May 2014

Authors:

Jae Yeol Jeon*, Ryo Matsumoto, Hiroshi Utsunomiya

Keywords:

AA2024, Die Quenching, Servo Press, Solution Heat Treatment

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