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基于 ProCast 的熔模铸造安装座的 应力模拟及裂纹分析
Stress Simulation and Crack Analysis of Mounting Seat by Investment Casting Based on Procast
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- DOI:
- 作者:
- 魏家强，程和法，程 文
WEI Jiaqiang, CHENG Hefa, CHENG Wen
- 作者单位:
- 合肥工业大学 材料科学与工程学院
School of Materials Science and Engineering, Hefei University of Technology
- 关键词:
- ProCAST ；有效应力；熔模铸造；铸态组织
ProCAST; effective force; melting mold casting; as-casting microstructure
- 摘要:
- 采用 ProCAST 模拟软件对高铁转向架构件在不同的浇注温度、浇注速度和模壳预热温度下应力场分布进
行了模拟，并对铸态组织进行分析。 结果表明，铸件最大应力主要集中在铸件和冒口连接处，模壳预热温度对有效应力
影响最大，模壳预热温度越高铸件有效应力越小，浇注温度次之，随着浇注温度升高，铸件有效应力升高，浇注速度影响
最小，随着浇注速度升高，铸件有效应力变小。浇注温度为 1 560 ℃ ，浇注速度为 5.30 kg/s ，模壳预热温度 600 ℃ 时，铸件
有效应力为 652.2 MPa ，小于铸件的抗拉强度，不产生裂纹。
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.