| Abstract Scope |
This study investigates the technical and economic feasibility of fabricating Schwarz Triply Periodic Minimal Surface (TPMS) structures using Metal Material Extrusion (MEX) as a cost-effective alternative to conventional metal additive manufacturing methods. A parametric Schwarz TPMS geometry was developed through implicit modeling, with optimized unit cell size and lattice thickness to ensure structural stability and fabrication compatibility. The work focuses on the design and manufacturability of metallic TPMS structures by evaluating printing, debinding, and sintering conditions required for defect-free fabrication while preserving geometric integrity. Key printing parameters, debinding and sintering temperature profiles, were systematically analyzed to minimize cracking, distortion, and dimensional inaccuracies. The results demonstrate the potential of Metal MEX for producing complex metal TPMS geometries with improved accessibility and lower production cost, while offering suitability for atmospheric water generation (AWG) applications due to their high surface-area-to-volume ratio and enhanced heat and mass transfer characteristics. |