REPEATABILITY AND SENSITIVITY OF A ROTATING DRUM METHOD FOR RHEOLOGICAL CHARACTERIZATION OF STAINLESS STEEL POWDERS USED FOR ADDITIVE MANUFACTURING
Justin Whiting, Vipin Tondare, Shawn P. Moylan
There remains a need for rheological characterization of metal powder used for powder-spreading-based additive manufacturing (AM). Novel powder rheometers introduced to the commercial market for this purpose must be rigorously evaluated for repeatability and sensitivity before widespread adoption for predicting AM powder performance. The work presented here focuses on the quantification of the repeatability and sensitivity of a single commercially available rotating drum powder rheometer for testing metal AM powder. This assessment is accomplished via a set of tests that include the following independent variables: cleaning method, the mass of the sample, particle size distribution, material, and hysteresis.
July 25-27, 2022
Austin, TX, US
The Thirty-Third Annual International Solid Freeform Fabrication Symposium
, Tondare, V.
and Moylan, S.
REPEATABILITY AND SENSITIVITY OF A ROTATING DRUM METHOD FOR RHEOLOGICAL CHARACTERIZATION OF STAINLESS STEEL POWDERS USED FOR ADDITIVE MANUFACTURING, The Thirty-Third Annual International Solid Freeform Fabrication Symposium, Austin, TX, US, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=935113
(Accessed February 8, 2023)