Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Mold Filling and Mechanical Properties of Thin Sectioned Al-Si Alloy Fabricated by Lost Foam Casting Process

소실모형주조법으로 제조한 박판형 Al-Si합금에서의 주형 충전 및 기계적 성질

  • Kim, Jeong-Min (Department of Advanced Materials Engineering, Hanbat National University) ;
  • Lee, Jae-Cheol (Department of Advanced Materials Engineering, Hanbat National University) ;
  • Choi, Jin-Young (Department of Advanced Materials Engineering, Hanbat National University) ;
  • Cho, Jae-Ik (Seonam Regional Division, Korea Institute of Industrial Technology) ;
  • Choe, Kyeong-Hwan (Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology)
  • 김정민 (한밭대학교 신소재공학과) ;
  • 이재철 (한밭대학교 신소재공학과) ;
  • 최진영 (한밭대학교 신소재공학과) ;
  • 조재익 (한국생산기술연구원 서남지역본부) ;
  • 최경환 (한국생산기술연구원 뿌리산업기술연구소)
  • Received : 2017.08.16
  • Accepted : 2017.12.04
  • Published : 2017.12.31
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Abstract

The lost foam casting method was used to fabricate Al-Si alloy thin sheet specimens; the effects of chemical composition and process variables on the mold filling and mechanical properties were investigated. The mold filling capability was observed to be proportional to the pouring temperature, and both the vibration imposed during the casting and the application of a pattern coating had rather negative effects. The mold filling capability also decreased with the addition of Mg or TiB. When the Mg content increased, the tensile strength of the cast alloy was enhanced, but the elongation decreased. However, after T6 heat treatment, both the strength and the elongation were improved. TiB addition for grain refining or pattern coating did not significantly affect the tensile properties.

Keywords

References

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