Whiting, J.
, Whitenton, E.
, Das, A.
, Tondare, V.
, Fox, J.
, McGlauflin, M.
, Donmez, A.
and Moylan, S.
(2023),
Powder Spreading Testbed for Studying the Powder Spreading Process in Powder Bed Fusion Machines, Advanced Manufacturing Series (NIST AMS), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.AMS.100-56, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=956611
(Accessed December 30, 2024)
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Powder Spreading Testbed for Studying the Powder Spreading Process in Powder Bed Fusion Machines
Published
Author(s)
Justin Whiting, , , , , Michael McGlauflin, ,
Abstract
The spreading of powder is an integral part of powder bed fusion-based additive manufacturing technologies; however, due to the complex nature and the number of interactions between particles, studying the powder spreading process is difficult. In order to gain insight into how the metal powder is spread in the powder bed fusion machines using a recoater, a spreading testbed is needed, which provides a method for recording the powder spreading process and characterizing the powder spread layer. The objective of this testbed is to study and try to establish fundamental relationships between bulk metal powder characteristics and powder spreading performance. Here, a fabrication of a powder spreading testbed (PST) is described. The minimum but necessary functionality of the PST has been discussed. The potential characterization methods for the powder spread layer have been proposed. This document serves as a guideline for the future development of the present testbed.Citation
Advanced Manufacturing Series (NIST AMS) - 100-56
Report Number
100-56
NIST Pub Series
Pub Type
NIST Pubs
Download Paper
Keywords
laser powder bed fusion, powder spreading, powder spreadability, testbed, particle tracking, additive manufacturing
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created November 29, 2023