Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Thixo Extrusion and Reheating Characteristics of Semi Solid A356 Alloy

반응고 A356 합금의 재가열 특성 및 반용융 압출

  • Kim, Dae-Hwan (Dept. of Metallical and Materials Engineering, Gyeongsang National University) ;
  • Jung, Hyun-Ju (Dept. of Metallical and Materials Engineering, Gyeongsang National University) ;
  • Shim, Sung-Yong (Dept. of Metallical and Materials Engineering, Gyeongsang National University) ;
  • Lim, Su-Gun (Engineering Research Institute (Gyeongsang National University)) ;
  • Lee, Sang-Yong (Jinju Campus of KOREA POLYTECHNIC)
  • 김대환 (경상대학교 나노.신소재 공학부) ;
  • 정현주 (경상대학교 나노.신소재 공학부) ;
  • 심성용 (경상대학교 나노.신소재 공학부) ;
  • 임수근 (경상대학교 공학연구원) ;
  • 이상용 (한국 폴리텍 VII대학 진주캠퍼스)
  • Received : 2014.02.14
  • Accepted : 2014.08.21
  • Published : 2014.08.31
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Abstract

This work presents the results of a thixo-extrusion process applied to aluminum alloy and and reheating characteristics of semi-solid A356 Alloy using have been discussed. The reheating experiment was performed using an electric resistance furnace and multi-stage heating for uniform reheating. The thixo-extrusion was performed at the optimal reheating conditions of the semi-solid A356 alloy, the the extrusion conditions were an extrusion ratio of 33 and ram speed of 6 mm/sec. The results showed that the thixo-extrusion of semi-solid A356 alloy fabricated by the cooling slope reduced the extrusion pressure by 180% in comparison with hot extrusion, and that a sound extrusion could be obtained in spite of the same extrusion ratio and strain rate.

Keywords

References

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