About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
Additive Manufacturing: Advanced Characterization for Industrial Applications
|
Presentation Title |
Characterizing Powder Spreading Dynamics in Powder Bed Fusion AM Process by High-speed X-ray Imaging |
Author(s) |
Luis I. Escano, Lianyi Chen |
On-Site Speaker (Planned) |
Luis I. Escano |
Abstract Scope |
Powder flowing behavior during the spreading process in powder-bed-based additive manufacturing technologies will ultimately define the powder bed quality. However, the dynamics of powders under additive manufacturing conditions is still not fully understood. It is important to experimentally observe the powder moving dynamics during the spreading process to understand the detailed mechanisms. However, the in-situ characterization of such process is quite a challenge due to the high spreading speed, the microscale of the particles, and the opacity of the material. Here we present our novel methodology for in-situ characterization of powder spreading dynamics in powder-based AM processes by high-speed x-ray imaging. |