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REPEATABILITY AND SENSITIVITY OF A ROTATING DRUM METHOD FOR RHEOLOGICAL CHARACTERIZATION OF STAINLESS STEEL POWDERS USED FOR ADDITIVE MANUFACTURING

Published

Author(s)

Justin Whiting, Vipin Tondare, Shawn P. Moylan

Abstract

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.
Conference Dates
July 25-27, 2022
Conference Location
Austin, TX, US
Conference Title
The Thirty-Third Annual International Solid Freeform Fabrication Symposium

Keywords

Additive manufacturing, Rotating drum powder rheometer, Repeatability, Sensitivity, Metal powder

Citation

Whiting, J. , Tondare, V. and Moylan, S. (2022), 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)
Created November 6, 2022, Updated November 29, 2022