International Journal of Mechanical Engineering

The solidification process of large steel castings directly affects their microstructure and properties. As an important means to study solidification mechanisms and optimize processes, numerical simulation can effectively predict the temperature field and the distribution of solidification defects. In this paper, a systematic numerical simulation of the solidification process of large steel castings was carried out based on the finite element method. The characteristics of temperature change, solidification time, and stress distribution were analyzed. Combined with the simulation results, a reasonable optimization scheme for process parameters was proposed. Through process optimization, the internal defects of the castings and the uniformity of the microstructure were significantly improved, providing theoretical support and technical guidance for the production of large steel castings.

Large steel castings; Solidification process; Numerical simulation; Process optimization; Temperature field