Centrifugal compressor impeller is one of the main parts in supercharger of the diesel engines to increase the engine power. Because the blade profile is complex and its thickness is generally thin as 0.7~2.0mm, it is important to ensure the precision for the enhancement of the quality of product. In order to prevent the formation of shrinkage defects, optimal gating systems were designed to examine the molten metal flow and solidification behavior during the pouring and solidification process. The optimal main parameters of casting process have been verified by experiment, and the rapid casting has been realized based on FDM-processed PolyCast^TM pattern and investment casting. As a result, the processing time and costs reduced and casting quality enhanced in the foundry industry.

离心式压气机叶轮是柴油机增压器中增加发动机功率的主要部件之一。由于叶片型面复杂，厚度一般薄至0.7~2.0mm，因此保证精度对提高产品质量至关重要。为了防止收缩缺陷的形成，设计了最佳浇注系统来检查浇注和凝固过程中熔融金属的流动和凝固行为。通过实验验证了铸造工艺的最佳主要参数，并实现了基于FDM加工的PolyCast ^TM模型和熔模铸造的快速铸造。因此，铸造行业的加工时间和成本减少，铸件质量提高。