| 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 |
Increasing Precision Towards NiTi Lattice Structure using PBF-EB |
| Author(s) |
Zeyu Lin, Sasan Dadbakhsh, Amir Rashid |
| On-Site Speaker (Planned) |
Zeyu Lin |
| Abstract Scope |
The electron beam powder bed fusion (PBF-EB) is limitedly used to manufacture complex structures such as delicate lattices. Nickel-titanium (NiTi) has been chosen for fabricating the lattice structure due to its wide utilization in the biomedical sector. However, issues may arise when manufacturing angled trusses while the dimensional inaccuracy increases with the increase of the angle between the truss member and the vertical build direction. Therefore, two different scan strategies: spot melting and linear melting were used to manufacture the lattice structures respectively to compare the dimensional accuracy of different structures. This investigation highlights that linear melting is prone to maintain the geometrical accuracy of line-based structures with a limited influence from the scan speed while spot melting is more capable of manufacturing the point-based structure with a higher geometrical resolution. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |