| About this Abstract |
| Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Symposium
|
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Presentation Title |
Toward In-Situ Sensing of Powder Packing Density In
metal Binder Jetting Using Recoating Force |
| Author(s) |
Chen Qian, Chinedum Okwudire |
| On-Site Speaker (Planned) |
Chen Qian |
| Abstract Scope |
Powder packing density is an important parameter in metal binder jetting (BJ) 3D printing. Research shows that this parameter is closely related to the quality of the final printed parts, affecting its strength, shape distortion, and surface finish. However, it is challenging to measure packing density in-situ. To address this challenge, we propose a novel method for estimating packing density where the force exerted on the powder recoater by the powder bed is measured and used to estimate the local packing density during the printing process. The proposed method enables real-time measurement of packing density, broadens the scope of BJ by offering the possibility of implementing closed-loop feedback control of packing density during the printing process. Closed loop control of packing density holds promise to enable high quality BJ parts to be produced using low-cost water atomized powder instead of high-cost gas atomized powder. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |