Infill Microstructures for Additive Manufacturing

Additive Manufacturing (AM) is a well-known and rapidly advancing method, especially in the manufacturing of high-strength lightweight microstructures. Utilizing AM, it possible to fabricate any structure as complicated is. For an efficient cost-effective printing, critical parameter infill, which can be characterized from easy 2D shape high complexity. At same time, Topology Optimization (TO) appropriate method create mass optimized microstructure lattices. In current study, TO starts solid cubic volume 15 × mm, different boundary conditions two new cellular microstructures designed with 0.4 0.1 relative density are applied, respectively. The adopted was Solid Isotropic Material Penalization (SIMP), predicts optimal material distribution within given design domain. methods do not check other characteristics structure, such anisotropy. To evaluate characterize microstructure, general purpose homogenization utilized calculate Zener ratio elastic modulus. Using Fused Filament Fabrication (FFF), extrusion 3D printing lattice samples fabricated then tested compression tensile strength tests. comparative results study showed that both have anisotropic behavior accepted response stress test similar homogenized material. experimental show mechanical changes significantly when cell mapping angle differs.