The artificial neural network technique is introduced
to calculate the locations of metal-pattern interface according to
the mechanism of the molten metal filling and metal front
moving during the filling process of lost foam casting (LFC).
Based on the calculated interface location,the fluid flow of the
molten metal during mold filling process is calculated by use of
SOLA method and the temperature distribution is coupled with.
The temperature distribution during the solidification process is
calculated by the numerical solution of the three-dimensional
heat conduction partial differential equation according to the
casting and mold temperature distribution at the moment of
filling process ending.The shrinkage derect of duchtile iron lost
foam casting is predicted according to the characteristics of
mold wall movement in LFC. The results of simulation are
consistent both with the results of mold filling test and with the
results of casting intersecting.