About this Abstract |
| Meeting |
2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
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| Symposium
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2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
|
| Presentation Title |
Shrinkage Prediction of Body-Centered-Cubic Metal Lattice Fabricated by FFF Additive Manufacturing Process |
| Author(s) |
Haijun Gong, Clayton Waller, Brock Case |
| On-Site Speaker (Planned) |
Haijun Gong |
| Abstract Scope |
Additive manufacturing (AM) allows engineers to create complex lightweight structures with normally unachievable patterns, but the high cost of metal AM equipment and feedstock materials limits access to smaller organizations and users. This research is based on a low-cost Fused Filament Fabrication (FFF) based AM process for printing strut-based lattice structures using a steel-polymer composite filament. The study focuses on predicting the shrinkage of body-centered cubic (BCC) metal lattice structures after debinding and sintering. A simple strut structure was extracted from the BCC lattice to accommodate the measurement method and to facilitate the data collection. The size of green structures and metal structures was compared using microscopy. Design of Experiment (DOE) was adopted to identify significant parameters, such as strut thickness, angle, and length. The results of this study help develop guidelines for low-cost metal AM lattices and demonstrate the predictability of lattice structures' shrinkage, promoting broader applications. |
| Proceedings Inclusion? |
Undecided |