Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Measurement of Springback of AZ31B Mg Alloy Sheet in OSU Draw/bend Test

AZ31B 마그네슘 합금 판재의 OSU 드로우벤드 시험과 스프링 백 측정

  • 최종길 (강원대학교 기계.메카트로닉스공학과) ;
  • 최선철 (강원대학교 기계.메카트로닉스공학과) ;
  • 이명규 (한국기계연구원 부설 재료연구소) ;
  • 김헌영 (강원대학교 기계.메카트로닉스공학과)
  • Published : 2007.10.01
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Abstract

The springback characteristics of AZ31B magnesium alloy sheet was investigated in OSU draw/bend test Springback is the elastically-driven change of shape of a part after forming and it should be estimated and controlled to manufacture more precise products in sheet forming. Magnesium alloy sheets have unique mechanical properties such as high in-plane anisotropy/asymmetry of yield stress and hardening response. So, there will be a difference in the prediction of springback with symmetric mechanical properties for magnesium alloy sheets. In this work, the Strip draw/bend tests were conducted with various conditions - die radius, sheet thickness and controlled tensile force and the tendency of springback angle was observed from the tests.

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References

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  2. 이명한, 김헌영, 김형종, 최이천, 김홍빈, 오수익, 2006, 마그네슘 합금 판재의 온간 성형에 대한 수치 모델링, 한국소성가공학회 추계학술대회 논문집, pp. 255-258
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  1. Evaluation of mechanical properties and springback for embossed aluminum sheet - part I vol.16, pp.2, 2015, https://doi.org/10.5762/KAIS.2015.16.2.921
  2. A study on the mechanical properties and springback of 3D aluminum sheets vol.17, pp.5, 2016, https://doi.org/10.1007/s12541-016-0082-0
  3. A Study on the Mechanical Properties and Formability of Mg AZ31B Sheet vol.23, pp.8, 2014, https://doi.org/10.5228/KSTP.2014.23.8.495