About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Repeatability and Sensitivity of a Rotating Drum Method for Rheological Characterization of Stainless Steel Powders Used for Additive Manufacturing |
Author(s) |
Justin G. Whiting, Vipin Tondare, Shawn Moylan |
On-Site Speaker (Planned) |
Justin G. Whiting |
Abstract Scope |
There remains a need for rheological characterization that is relevant for powder-based additive manufacturing (AM). While there have been novel powder rheometers introduced to the commercial market, each must first be rigorously evaluated prior to widespread adoption for predicting AM powder performance. The work presented here focuses on the quantification of the repeatability and reproducibility from two commercially available rotating drum powder rheometers for testing metal AM powder. The repeatability assessment is accomplished via a robust set of tests that include the following independent variables: cleaning method, mass of the sample, particle size distribution, material, and hysteresis. The reproducibility of the method is evaluated via an interlaboratory study comprised of a total of 13 laboratories from industry, academia, and one National Laboratory. Samples are produced following ASTM B215-20. Results from ANOVA conducted on the data collected from the interlaboratory study are presented with results from both device’s repeatability analysis. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |