Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 10    No. 5    October 2000

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Numerical simulation of thermal stress field for
die casting dies of aluminum alloy①
NING Zhi-liang(宁志良), ZHOU Bi-de(周彼德), XUE Xiang(薛 祥), ZHANG Chun-hui(张春晖)

School of Materials Science and Engineering, Harbin Institute of Technology,
Harbin 150001, P.R.China

Abstract:The thermal elastic-plastic constitutive equations suitable for computation of thermal stress of die casting dies were established. On the base of simulation of temperature field, the thermal stress field of die casting dies was simulated by COSMOS, and the effects of initial die temperature and coating on the surface of die on thermal stress distribution were studied. The results show that the thermal stress mainly concentrates on the die surface and the lower initial die temperature and no thermal resistance cause a higher thermal stress.

 

Key words: thermal elastic-plastic constitutive equation; die casting dies; thermal stress

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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