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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.6
- 수록면
- 161 - 168 (8page)
이용수
초록· 키워드
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Aluminum alloy sheets, compared to conventional steel sheets, face challenges in press forming due to their lower elongation. To enhance their formability, extensive research has focused on forming technologies at elevated temperatures, specifically warm forming at around 300℃ and hot forming at approximately 500℃. This study proposes that the formability of aluminum alloy sheets can be significantly enhanced using a multi-stage hot forming technique. The research also investigates whether the strength of the A6061 aluminum alloy, known for its precipitation hardening, can be maintained when formed below the precipitate solid solution temperature. In the experiments, the A6061-T6 sheet underwent heating and rapid cooling between 250 and 500℃. The mechanical properties were evaluated at each stage of the process. The findings revealed that when the initial heat treatment was below 350℃, the strength of the material remained unchanged. However, at temperatures above 400℃, there was a noticeable decrease in strength coupled with an increase in elongation. Conversely, when the secondary heat treatment was conducted at temperatures of 350℃ or lower, the strength remained comparable to that of the initial heat treated material. However, at higher temperatures, a reduction in strength and an increase in elongation were observed.
목차
Abstract
1. 서론
2. 다단 알루미늄 열간성형 개요
3. 실험 방법
4. 시험결과 및 고찰
5. 결론
REFERENCES
참고문헌 (16)
참고문헌 신청
C. Gan, Y. Xue, M. Wang, 2011, Prediction of the flow stress of Al6061 at hot deformation conditions, Mater. Sci. Eng. A, Vol. 528, pp. 4199~4203. https://doi.org/10.1016/j.msea.2011.02.004
Z. B. He, X. B. Fan, F. Shao, K. L. Zheng, Z. B. Wang, S. J. Yuan, 2012, Formability and microstructure of AA6061 Al alloy tube for hot metal gas forming at elevated temperature, Trans. Nonferrous Met. Soc. China, Vol. 22, pp. 364~369. https://doi.org/10.1016/S1003-6326(12)61732-4
X. B. Fan, Z. B. He, S. J. Yuan, 2012, Deformation behavior of 5A06 aluminum alloy sheet for rapid gas forming at elevated temperature, Trans. Nonferrous Met. Soc. China, Vol. 22, pp. 389~394. https://doi.org/10.1016/S1003-6326(12)61736-1
S. Ramesh Babu, S. Deivanayagam, M. Aravind, 2014, Determination of Material Parameters during Superplastic Forming of AA 5086 Alloy, Procedia Eng., Vol. 97, pp. 1379~1386. https://doi.org/10.1016/j.proeng.2014.12.419
S. R. Chen, Y. F. Kao, 2018, Microstructural simulation of a 5052 aluminum alloy strip for a hot tandem mill, China Steel Technical Report, No. 31, pp. 52~59.
Z. B. He, X. B. Fan, F. Shao, K. L. Zheng, Z. B. Wang, S. J. Yuan, 2012, Formability and microstructure of AA6061 Al alloy tube for hot metal gas forming at elevated temperature, Trans. Nonferrous Met. Soc. China, Vol. 22, pp. 364~369. https://doi.org/10.1016/S1003-6326(12)61732-4
X. B. Fan, Z. B. He, S. J. Yuan, 2012, Deformation behavior of 5A06 aluminum alloy sheet for rapid gas forming at elevated temperature, Trans. Nonferrous Met. Soc. China, Vol. 22, pp. 389~394. https://doi.org/10.1016/S1003-6326(12)61736-1
S. Ramesh Babu, S. Deivanayagam, M. Aravind, 2014, Determination of Material Parameters during Superplastic Forming of AA 5086 Alloy, Procedia Eng., Vol. 97, pp. 1379~1386. https://doi.org/10.1016/j.proeng.2014.12.419
S. R. Chen, Y. F. Kao, 2018, Microstructural simulation of a 5052 aluminum alloy strip for a hot tandem mill, China Steel Technical Report, No. 31, pp. 52~59.
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