| 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 |
Binder Evaporation During Powder Sheet Additive Manufacturing |
| Author(s) |
Joerg Volpp, Wenyou Zhang, William Abbott, Asli Coban, Riccardo Casati, Ramesh Padamati, Rocco Lupoi, Silvia Marola, Sean McConnell |
| On-Site Speaker (Planned) |
Joerg Volpp |
| Abstract Scope |
Several Additive Manufacturing methods are well established and found access into regular production in multiple sectors. For processing metals, typically wire or powder is used as feedstock. For additive processes very fine powder is used. Such fine powders can be a health risk for humans (aspiration, skin integration). Therefore, an alternative process was developed that provides the powder not as free powder particles but in form of powder sheets. For enabling the necessary bonding between the particles, a binder is used. In order to understand the impact of the binder during laser processing of the powder sheets, single pulse and line treatments were produced and recorded with high-speed imaging. Recordings show the vaporization of the binder and the related ejections of powder particles. At lower energy input, the binder evaporation led to less spattering, which indicates that a binder heating at low heating rates induces less pressure on the particles. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |