한국주조공학회지 (Journal of Korea Foundry Society)

  • 제32권5호
  • /
  • Pages.225-230
  • /
  • 2012
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  • 1598-706X(pISSN)
  • /
  • 2288-8381(eISSN)
한국주조공학회 (Korea Foundry Society)
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알루미늄 합금 주물의 냉각 속도에 따른 기계적 성질 예측

Effect of Cooling Rate on the Prediction of Mechanical Properties of Al Alloys

  • 동권식 (과학기술연합대학원대학교 가상공학과) ;
  • 조인성 (한국생산기술연구원 사이버설계센터) ;
  • 황호영 (한국생산기술연구원 사이버설계센터)
  • Dong, Quan-Zhi (Dept. of Virtual Engineering, University of Science and Technology) ;
  • Cho, In-Sung (e-Design Center, Korea Institute of Industrial Technology) ;
  • Hwang, Ho-Young (e-Design Center, Korea Institute of Industrial Technology)
  • 투고 : 2012.08.24
  • 심사 : 2012.10.17
  • 발행 : 2012.10.31
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초록

In this study, a more practical and simulation approach which can predict the mechanical properties of aluminum alloys is proposed. First, cooling rate, micro-structure, and mechanical properties of casting product were measured through casting experiment. The relation between cooling rate and SDAS decrease exponentially and the linearly decreasing relation exist between SDAS and mechanical properties. Then, the cooling rate was calculated by casting process simulation and the mechanical properties were predicted by using the relations that were derived through experiment. Experimentally measured mechanical properties and predicted values by simulation were in the range of relatively small difference. The mechanical properties of various Al alloys are expected to be predicted by the casting process simulation before actual casting.

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참고문헌

  1. Lee BJ, Master Thesis, Inha University, "Prediction of mechanical properties with different cooling rates of AC4CH aluminum alloy and its application in computer simulation" (2010) 6-7.
  2. Cheon BW, Ph.D. Thesis, Dong-A University, "The effect of metallic mold cooling system on the solidification structures and the mechanical properties for Al alloy castings" (1994) 1-3.
  3. Kwon HJ, Master Thesis, Yonsei University, "Prediction of mechanical properties and microstructure of hypo-eutectic Al- Si alloy using cellular automata; based on experimental database" (2002) 1-3.
  4. Lee WS and Ye BJ, J. KFS, "Variation of fluidity in Al alloys with the addition of Si, Mg and melt treatments", 19 (1999) 310-317.
  5. Kim JK, Kim KY and Park HW, Optical metallography, Gold Publishing Ltd, Seoul (1999) 369-387.
  6. Yoo SM, Lee DH, Kim JK, So CY and Hong CP, J. KFS, "Three dimensional solidification analysis in large steel castings by modified finite difference method", 11 (1991) 54-62.
  7. Lee MS, Kim KY and Kim SW, J. KFS, "Effect of tilting speed and angle on gas entrapment in gravity diecasting", 14 (1994) 353-362.
  8. Han YS, J. KFS, "Defect types of high pressure casting and the influence on the mechanical properties", 22 (2002) 223-230.