Topology Optimization Design of Impellers Based on Selective Laser Melting Process

Aiming at the core contradiction between structural strength and material weight reduction in the lightweight design of impellers, this paper proposes a topology optimization method considering support-free forming and blade geometric shape retention based on selective laser melting (SLM) additive manufacturing technology. The variable density method is adopted for topology optimization design, and hollow structures and lattice filling strategies are integrated to optimize the internal material