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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
- 2021.4
- 수록면
- 74 - 82 (9page)
이용수
초록· 키워드
오류제보하기
Stretch-flangeability, which is the ability of sheet steels to be deformed into complex shapes, is a critical formability property in automobile body parts. In this study, the center-hole for hole expansion test, which is normally used to evaluate the stretch-flangeability of sheet steels, was prepared by both punching and electrical discharge machining (EDM) methods. Hole expansion ratio (HER) of punched hole was far lower than the HER of EDM drilled hole because of damage/crack in hole-edge due to punching process. The effect of hole-edge condition on HER was quantified by mechanical, fractographic and geometric factors. Based on these factors, the empirical equation used to determine HER for various sheet steels was derived using nonlinear regression.
목차
Abstract
1. 서론
2. 실험방법
3. 결과 및 고찰
4. 결론
REFERENCES
참고문헌 (16)
참고문헌 신청
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J.-Y. Kang, S.-J. Park, D.-W. Suh, H. N. Han, 2013, Estimation of phase fraction in dual phase steel using microscopic characterizations and dilatometric analysis, Mater. Charact. 84, pp. 205-215. https://doi.org/10.1016/j.matchar.2013.08.002
B. De Cooman, O. Kwon, K.-G. Chin, State-of-theknowledge on TWIP steel, 2012, Mater. Sci. and Technol. 28(5), pp. 513-527. https://doi.org/10.1179/1743284711Y.0000000095
H. N. Han, C.-S. Oh, G. Kim, O. Kwon, 2009, Design method for TRIP-aided multiphase steel based on a microstructure-based modelling for transformationinduced plasticity and mechanically induced martensitic transformation, Mater. Sci. Eng.: A 499(1-2), pp. 462-468. https://doi.org/10.1016/j.msea.2008.09.026
H. N. Han, C. G. Lee, D.-W. Suh, S.-J. Kim, 2008, A microstructure-based analysis for transformation induced plasticity and mechanically induced martensitic transformation, Mater. Sci. Eng.: A 485(1-2), pp. 224- 233. https://doi.org/10.1016/j.msea.2007.08.022
J.-Y. Kang, S.-J. Park, D.-W. Suh, H. N. Han, 2013, Estimation of phase fraction in dual phase steel using microscopic characterizations and dilatometric analysis, Mater. Charact. 84, pp. 205-215. https://doi.org/10.1016/j.matchar.2013.08.002
B. De Cooman, O. Kwon, K.-G. Chin, State-of-theknowledge on TWIP steel, 2012, Mater. Sci. and Technol. 28(5), pp. 513-527. https://doi.org/10.1179/1743284711Y.0000000095
H. N. Han, C.-S. Oh, G. Kim, O. Kwon, 2009, Design method for TRIP-aided multiphase steel based on a microstructure-based modelling for transformationinduced plasticity and mechanically induced martensitic transformation, Mater. Sci. Eng.: A 499(1-2), pp. 462-468. https://doi.org/10.1016/j.msea.2008.09.026
H. N. Han, C. G. Lee, D.-W. Suh, S.-J. Kim, 2008, A microstructure-based analysis for transformation induced plasticity and mechanically induced martensitic transformation, Mater. Sci. Eng.: A 485(1-2), pp. 224- 233. https://doi.org/10.1016/j.msea.2007.08.022
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