레오로지 소재의 점도측정에 의한 공정해석 및 실험적 평가

Process Analysis and Experimental Evaluation by the Viscosity Measurement of Rheological Materials

  • 서판기 (부산대학교 대학원 정밀기계공학과) ;
  • 강충길 (부산대학교 기계공학부)
  • 발행 : 2002.05.01

초록

Using a simple compression test, the viscosity measurement experiment is carried out with the grain-refined Al-Si alloy(A356). The measured rheological data are expressed with power-law(Ostwald-de Waele) model and using commercial package, MAGMAsoft, coefficients of Ostwald-de Waele model and Carreau-Yasuda model are calculated. To verify the viscosity data, the die is designed to be applicable to the semi-solid die casting of automotive component and filling test is carried out. The filling test and the simulation result are compared and in good agreement. Hereafter, these data are considered to be usefully allied other product in the semi-solid die casting.

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