소성∙가공 (Transactions of Materials Processing)

  • 제16권2호
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  • Pages.120-125
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  • 2007
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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AZ3l 판재의 온간 사각컵 디프드로잉에서 금형 설계에 대한 성형성 민감도의 평가

Evaluation of Formability Sensitivity to Die Design in Warm Square Cup Deep Drawing of AZ31 Sheet

  • 김기덕 (한국생산기술연구원 정밀금형팀) ;
  • 김흥규 (한국생산기술연구원 정밀금형팀)
  • 발행 : 2007.04.01
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초록

Magnesium alloy has low formability at room temperature and therefore, in many cases, forming at elevated temperatures is necessary to obtain the required material flow without failure. Tn the present study, square cup deep drawing tests using the magnesium alloy AE31 sheet were experimentally conducted using the porches and dies with different edge radius to evaluate the formability sensitivity to the die design variables. The experimental results showed that the fracture position over the cup wall moved from the punch nose to the flange as the die temperature increased, and that the drawing depth change was more affected by the punch radius than the die radius.

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참고문헌

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