| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Building Equation-based Lattice Structures using Large Minimum Feature Size AM Processes |
| Author(s) |
Joseph Bartolai, Joseph W Fisher, Simon W Miller |
| On-Site Speaker (Planned) |
Joseph Bartolai |
| Abstract Scope |
This work discusses the challenges of 3D printing equation-based lattice structures where the ratio of wall thickness to AM process minimum feature size is quite small. Lattice structures are typically constructed with unit cell sizes where the AM minimum feature size is much smaller than that of the lattice’s structural thickness. This is not always possible for certain AM processes (e.g., DED, WAAM) at unit cell sizes and volume fractions where a lattice would be most beneficial. Results of this study include: a design space within which fabrication of a lattice structure is possible with a large minimum feature size AM process; modifications necessary to ensure a lattice structure is producible; and simulated changes to unit cell mechanical properties based on these geometric modifications. Work presented explores the Gyriod and D-surface equation-based lattices using Material Extrusion AM (MEX) and discusses the lessons learned and extension for Directed Energy Deposition. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |