Manufacturability Analysis of Strut Lattice Design Using PLA-based Composite Material
Keywords:3D Printing, FDM, Lattice printing, CF-PLA, Wood-PLA
Additive Manufacturing (AM) revolutionizes conventional manufacturing in the aspect of design complexities. Currently, 3D printing lattice structure is gaining attention due to its lightweight properties. Unfortunately, studies on the characterization and mechanical properties of AM composite lattice are still limited due to the insufficient availability of design rules for the lattice-development. Therefore, this study aims to perform a manufacturability analysis of strut-lattice design, in assisting the development of design rules for Fused Deposition Modelling (FDM) technique. Four types of strut-lattice consisted of square, circle, triangle, and octagon strut were designed and fabricated using carbon fibre PLA (CF-PLA) and Wood-PLA. The fabricated strut-lattice was inspected, evaluated, and compared with Virgin PLA based on the pass and fail criteria. The result showed that all of the composite and Virgin PLA parts were successfully fabricated when the strut sizes higher than 2.00 mm. It is anticipated that this study provides a guide to develop a set of new design rules focusing on lightweight structures and bring inspiration to the development of a range of lightweight-high strength mechanical applications.
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