Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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A Comparative Study of Failure Criteria for Magnesium Alloy Sheet under Warm Press Forming Condition

마그네슘 판재 온간 성형의 파단 예측 모델 비교 연구

  • 김흥규 (한국생산기술연구원 금형기술연구그룹) ;
  • 김종덕 (한국생산기술연구원 금형기술연구그룹) ;
  • 허영무 (한국생산기술연구원 금형기술연구그룹) ;
  • 김우진 (홍익대학교 신소재공학과)
  • Received : 2011.11.28
  • Accepted : 2012.02.24
  • Published : 2012.04.01
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Abstract

Magnesium sheet alloys possess limited plastic formability at room temperature but their formability is substantially improved at elevated temperatures and optimum strain rates. In the present paper, three different types of failure criteria, namely, strain-based, stress-based, and work-based criteria, are compared for their applicability to warm press forming of magnesium sheet alloys. Warm deep-drawing experiments were conducted on AZ31 alloy sheet, and the results were used to assess the strength and weakness of the failure criteria.

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References

  1. A. F. Graf, W. F. Hosford, 1993, Calculation of Forming Limit Diagrams for Changing Strain Paths, Met. Trans. A., Vol. 24, No. 11, pp. 2497-2501. https://doi.org/10.1007/BF02646528
  2. H. J. Kleemola, M. T. Pelkkikangas, 1977, Effect of Predeformation and Strain Path on the Forming Limits of Steel, copper and brass, Sheet Metal Indust., Vol. 63, No. 6, pp. 591-599.
  3. T. B. Stoughton, 2000, A General Forming Limit Criterion for Sheet Metal Forming, Int. J. Mech. Sci., Vol. 42, No. 1, pp. 1-27. https://doi.org/10.1016/S0020-7403(98)00113-1
  4. T. B. Stoughton, X. Zhu, 2004, Review of Theoretical Models of the Strain-based FLD and their Relevance to the Stress-based FLD, Int. J. Plasticity, Vol. 20, No. 8-9, pp. 1463-1486. https://doi.org/10.1016/j.ijplas.2003.11.004
  5. W. J. Kim, H. K. Kim, W. Y, Kim, S. W. Han, 2008, Temperature and Strain Rate Effect Incorporated Failure Criteria for Sheet Forming of Magnesium Alloys, Mater. Sci. Eng. A, Vol. 488, No. 1-2, pp. 468-474. https://doi.org/10.1016/j.msea.2007.11.077
  6. H. K. Kim, W. J. Kim, 2010, Failure Prediction of Magnesium Alloy Sheets Deforming at Warm Temperatures using the Zener-Holloman Parameter, Mech. Mater., Vol. 42, No. 3, pp. 293-303. https://doi.org/10.1016/j.mechmat.2009.12.003
  7. H. K. Kim, J. D. Kim, Y. M. Heo, 2009, Warm Formability Variation of AZ31 Sheet by Double Stage Forming Velocity, Trans. Mater. Proc., Vol. 18, No. 2, pp. 112-115. https://doi.org/10.5228/KSPP.2009.18.2.112

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