中國有色金屬學(xué)報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 10 No. 5 October 2000 |
die casting dies of aluminum alloy①
（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
