The change of field in each stage of lost foam casting forming process is calculated accurately, so as to obtain reasonable control parameters in lost foam casting forming process, so as to optimize lost foam casting process, which is the purpose of casting numerical simulation. Nowadays, the research on Numerical Simulation of lost foam casting has the following four aspects: the simulation of mold filling and solidification process; Stress simulation during solidification; Simulation of microstructure during solidification; Prediction of shrinkage cavity and porosity. Numerical simulation technology of lost foam casting plays an important role in improving and optimizing lost foam casting process, improving casting quality, reducing production cost and scrap rate.
In the field of material forming, the application of computer technology is deepening. For lost foam casting process, expanding the application of computer in the field of lost foam casting technology is one of the development directions of lost foam casting industry. lost foam casting numerical simulation technology is a comprehensive application of many disciplines, such as numerical analysis knowledge, heat transfer theory, solidification theory, lost foam casting professional knowledge, computer graphics theory and so on.
After decades of development, the numerical simulation technology of lost foam casting has changed from simple to complex, from simulating the temperature field in the process of lost foam casting to simulating the stress field and flow field in the process of casting, from the simulation of gravity casting to the simulation of high-pressure and low-pressure casting, from the research in the laboratory to the practice of industrialization. As an important tool for process development and product design, numerical simulation of lost foam casting has played an important role in improving the quality and output of castings.