A Study on the Experimental Evaluation of AZ31B Sheet Formability with Circle and Rectangle Shape

AZ31B 마그네슘합금 판재의 원형 및 사각 딥드로잉 성형성의 실험적 평가

  • 권기태 (부산대학교 대학원 기계공학부) ;
  • 강석봉 (한국기계연구원 재료기술연구원) ;
  • 강충길 (부산대학교 기계공학부)
  • Published : 2007.10.11

Abstract

Since Mg alloy has many attractive advantages among the practically used metals, many researchers have been studied to develop useful process and material. The crystal structure of Magnesium was hexagonal close-packed, so its formability was poor at room temperature. But formability was improved in high temperature with increasing of slip planes, twins, dynamic recrystallization. In this study The formability of AZ31B magnesium sheet is estimated according to the variable temperatures, forming speed, thickness, blank holding force. The results of deep drawing experiences show that the formability is well at the range from 200 to $250^{\circ}C$, 20 to 60 mm/min forming speed and 2.5 to 3KN blank holding force.

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