The invention provides a method for improving the CAE analysis precision in the high-
pressure casting mold-filling process and belongs to the technical field of numerical
simulation of
casting computers. The method comprises the specific steps that 1, the high-pressure mold-filling process of a
casting is simulated by using CAE
software, CAE analysis parameters are set according to a process in actual production, and CAE
simulation is conducted on the high-
pressure casting process; 2, a high-
pressure casting visualization device is applied to
shoot the high-pressure mold-filling process of the
casting; 3, a CAE analysis result is compared with an actual shooting result, main factors affecting the mold-filling precision for CAE analysis are found, input parameters for CAE analysis are corrected, and the CAE analysis precision is improved. The part which does not conform to the actual situation in CAE
simulation analysis can be accurately looked up, the cause of difference existing is analyzed in a targeted mode, a numerical simulation calculation model is modified by modifying the CAE simulation parameters, then the modified numerical simulation calculation model is applied to the casting complicated in structure, a mold casting
system is optimized, and the mold-filling defects such as
air trapping, air involving, misrun and oxidization and
slag inclusion produced by improper design of the mold casting
system are avoided.