| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Design Optimization, Multi-axis Additive Manufacturing, and Mechanical Evaluation of Continuous-fiber Composite Structures |
| Author(s) |
Joseph R. Kubalak, Kieran D. Beaumont, Christopher B. Williams |
| On-Site Speaker (Planned) |
Joseph R. Kubalak |
| Abstract Scope |
Multi-axis material extrusion (MEX) enables reorientation of the deposition tool relative to the part (via industrial robotics) such that every deposition can be aligned to arbitrary (e.g., 3D) load paths. In combination with continuous fiber-reinforced materials, this manufacturing capability can achieve unprecedented part performance. However, designing and manufacturing structures that exploit these capabilities is challenging. Here, we leverage both (1) a topology and toolpath optimization workflow that optimizes the distribution and orientation of a continuous fiber-reinforced composite for multi-axis MEX and (2) a novel deposition tool that enables printing and cutting of such materials. Optimization constraints (tailored for continuous fiber materials) are imposed to improve design printability and fiber length. Output designs are fabricated on a multi-axis deposition platform outfitted with a custom co-extrusion tool (capable of simultaneously metering continuous carbon fiber with a thermoplastic matrix). The resultant structures, featuring optimized layer-less toolpaths, are then mechanically evaluated. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |