箱体件消失模铸造工艺设计

Design of Lost Foam Casting Process Parameters for Case Casting

准确的边界条件设置是保证数值模拟精度的必要条件,首先确定合适的边界条件,再结合计算机模拟技术对箱体零件消失模铸造工艺进行分析,最后对比实验与计算机仿真结果验证了建立的有限元模型的准确性。依据模拟分析讨论的结果做了相应的消失模铸造实验,成功地制备出了充型完整的铸件,同时铸件表面品质好,尺寸完整,无缩松和粘砂等铸造缺陷。

The appropriate boundary condition was selected to improve the simulation accuracy of the casting process, and the lost foam casting process parameters for the case castings were designed and analyzed using numerical simulation technology.Meanwhile, the experimental result was compared with the simulation result to verify the validity of the established finite element model. Based on the simulation results, sound castings with acceptable surface quality and dimensional accuracy are successfully prepared and no obvious defects such as shrinkages and sand adhesion are found in the castings.