Stress Simulation and Crack Analysis of Mounting Seat by Investment Casting Based on Procast

Author of the article:WEI Jiaqiang, CHENG Hefa, CHENG Wen

Author's Workplace：School of Materials Science and Engineering, Hefei University of Technology

Key Words：ProCAST; effective force; melting mold casting; as-casting microstructure

Abstract： ProCAST simulation software was used to simulate the stress field distribution of high-speed iron bogie
components at different pouring temperatures, pouring speeds and shell preheating temperatures, and the as-cast
microstructure was analyzed. The results show that the maximum stress of castings mainly concentrated in the casting and
riser joints, mould preheating temperature, the most profound effect on the effective stress shell mould preheating
temperature, the smaller the effective stress, the higher the casting pouring temperature, with increasing pouring
temperature, casting effective stress increase, affect the minimum casting speed, with increasing casting speed, casting
effective stress decreases. When the casting temperature is 1 560 ℃, the casting speed is 5.30 kg/s, and the preheating
temperature of the mold shell is 600 ℃, the effective stress of the casting is 652.2 MPa, which is less than the tensile
strength of the casting, and no crack occurs.