Currently, shrouded centrifugal impellers are mostly manufactured by five-axis milling. This market leading process is getting compared to the novel method of additive manufacturing. For this purpose, an impeller-model is constructed by using 3D-CAD-software. Based on this model the future operational load is simulated using FEM-Analysis, which considers various basic materials of the additive manufacturing.
Following the FEM-Analysis, an additive manufactured shrouded impeller withstands the operational stress within a centrifugal compressor. Consequently, the additive production of the modelled impeller is commissioned after a comparison of additive manufacturers throughout Germany.