With the rapid development of computer technology, more and more researchers at home and abroad began to pay attention to the numerical simulation of casting filling and solidification process. Since the 1960s, they have done a lot of research on the numerical simulation of casting filling and solidification process, and achieved gratifying results in the establishment of numerical model, the realization of algorithm and engineering practice.
Because the numerical simulation of temperature field is relatively simple, researchers at home and abroad first studied the numerical simulation technology of casting solidification process, and achieved a series of results.
In 1962, K. forsund, a Danish scholar, opened up a new way to study the solidification theory of casting with computer numerical calculation method. For the first time, he used the finite difference approximation method proposed in engineering application to calculate the heat transfer in the solidification process of casting.
In 1965, J.H. Henzel and K. keverian of General Electric Company proved the reliability of numerical simulation of casting solidification process by using general program of transient heat transfer. Using this program, they numerically simulated the cylinder block of a large cast steel steam turbine weighing up to 9 tons. The temperature field obtained by the simulation is very close to the actual measurement results.
In 1966, the heat transfer Committee of the American Foundry Society formulated a long-term plan to study the numerical simulation of casting solidification process. Since then, the computer numerical simulation technology of multi casting solidification process has been studied in other countries.