Notice of RetractionNumerical simulation of mould filling process in lost foam casting of engine cover

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

By using numerical simulation techniques, a three-dimensional mathematical model for the simulation of flow process, filling process, solidification process and foam gasification process of LFC in engine cover casting was proposed and computed. The results show that the process of liquid metal flow in LFC is in the advancing process of radial layers along the three-dimensional direction step by step, the promoting distribution of the velocity vector has a close relationship with the filling time. In the filling process, foam pattern gasification and decomposition appeared to be exacerbated by heat transfer in the whole casting. It obeys the sequential theory in solidification process from the top to the down. It makes great difference in casting filling order process with common cavity mold filling process. This three-dimensional model can be used to predict the defects and optimize the casting design in the LFC production.