About this Abstract |
| Meeting |
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
|
| Symposium
|
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
|
| Presentation Title |
Heterogeneity and Distortion in Shelled Binder Jet Geometries in Green and Sintered Parts |
| Author(s) |
Madi P Lawrence, A Kalani Brubaker, Nathan Crane |
| On-Site Speaker (Planned) |
Nathan Crane |
| Abstract Scope |
Binder Jetting (BJ) has many advantages as an additive manufacturing process, but one of its major disadvantages is that it can be difficult to achieve high density parts. Pores in BJ parts negatively impact the mechanical strength and ductility and limit the usefulness of BJ parts in demanding industries. Multiple studies show that shell printing can be used to increase average part density, but the mechanisms that contribute to low density in bound regions is poorly understood. This study uses micro-CT scanning to explore the internal structures of shelled parts in their green state and their implications on the practicality of shelled printing and the source of the variation. These results show that interfaces between printed and unprinted regions have lower density and that during sintering the bound/unbound regions can introduce part distortion. |
| Proceedings Inclusion? |
Planned: Post-meeting proceedings |