Abstract
This chapter illustrates the manufacturability of uniform TPMS structures and discusses their precision analysis, microstructure, and static mechanical properties. It evaluates the manufacturability of TPMS lattice structures through the SLM process with different metal powders including 316L stainless steel, Ti-6Al-4V, and AlSi10Mg. The effects of cell type, size, volume fraction, and cell orientation on manufacturability are investigated. In addition, the microstructure and modified surfaces of the lattices are evaluated. Compressive testing of lattice structures manufactured in SLM and DMLS processes is conducted to provide an understanding of the behavior of periodic lattice structures under monotonic compression loading. The compressive elastic modulus and yield strength are examined for both gyroid and diamond-type lattice structures. Experimental results are compared with the analytical Gibson-Ashby model to determine the accuracy of the model and to provide a prediction approach.
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