Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Experiments for Forming Limit Diagram and Springback Characteristics of AZ31B Magnesium Alloy Sheet at Elevated Temperature

AZ31B 마그네슘 합금판재의 온간 성형한계도 및 스프링백 특성 시험

  • 최선철 (강원대학교 대학원 기계.메카트로닉스 공학과) ;
  • 이한수 (강원대학교 대학원 기계.메카트로닉스 공학과) ;
  • 김형종 (강원대학교 기계.메카트로닉스 공학부) ;
  • 이경택 ((주) 오스템 기술연구소) ;
  • 김헌영 (강원대학교 기계.메카트로닉스 공학부)
  • Published : 2007.05.10
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Abstract

The effect of temperature on the forming limit diagram was investigated for AZ31B magnesium alloy sheet through the limit dome height test in the range from room temperature to $300^{\circ}C$. The formability of AZ31B sheet was improved significantly according to the increasing temperature. Also we studied the springback characteristics through the 2D draw bending test with different blank holding forces at elevated temperatures. Springback quantity was considerably reduced as temperature went up. The blank holding force in the range used, however, had little influence on springback. Experimental results obtained in this study may provide a material database for AZ31B sheet.

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