About this Abstract |
Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Symposium
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2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
Presentation Title |
Prediction of the Spreadability of Metal Powders: The Last Developements |
Author(s) |
Aurelien Neveu, Filip Francqui |
On-Site Speaker (Planned) |
Filip Francqui |
Abstract Scope |
The spreadability of powders,i.e. their ability to produce smooth and homogeneous layers, is an essential property to guarantee the good quality of the parts produced in powder-bed based AM processes. However, evaluating the spreadability of materials during production is usually not feasible due to the cost associated with the minimum batch volume to fill in the machine and the time required to empty and clean the machine between each test. The Cohesive Index metric (GranuDrum, Granutools, Belgium) has been demonstrated to be well correlated with the homogeneity of the deposited layers in an SLM printer (ISO/ASTM TR 52952:2023). This indicates the strong relationship between powder cohesiveness and spreadability. These results opened up new perspectives to predict the spreadability of materials at the formulation stage, without having to produce large batches. Also, suppressing the need to fill the machine is nice to have to reduce the material cost and machine time. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |