| 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 |
High-precision Measurement of Melt Pool Properties during Laser-based Powder Bed Fusion of Metals by High-speed Imaging |
| Author(s) |
Arno Elspass, Jan Wegner, Hanna Schönrath, Niklas Horstjann, Stefan Kleszczynski |
| On-Site Speaker (Planned) |
Arno Elspass |
| Abstract Scope |
Laser-based powder bed fusion of metals is used to produce complex and high performance components for different industrial applications. Due to the high complexity of the underlying physical mechanisms during the process, its control is still challenging. To avoid process-specific defects, which affect mechanical properties, a huge amount of specific knowhow is crucial. Especially for regulated industries, such as medical or aerospace, this is a limiting factor for the widespread use of this technology. In this work high speed imaging in combination with a high magnification optic, resulting in a resolution of 1.44 µm/pixel is used to gain a deeper insight in the property-determining mechanism and boundary conditions during the process. Thereby, the intensity distribution of the melt pool is measured and analyzed with an imaging script to determine width, length and cooling rate by means of intensity. The potential of this data for predicting resulting material properties is demonstrated. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |