Talebi, Fatemeh A., Haydari, Zobaideh, Salehi Kahrizsangi, Hamid ORCID: https://orcid.org/0000-0002-2516-6619, Mehrabi, Mozhdeh, Gardy, Jabbar, Bradley, Michael, Bayly, Andrew E. and Hassanpour, Ali (2024) Spreadability of powders for additive manufacturing: a critical review of metrics and characterisation methods. Particuology, 93. pp. 211-234. ISSN 1674-2001 (doi:10.1016/j.partic.2024.06.013)

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Abstract

Powder bed fusion methods of additive manufacturing (AM) require consistent, reproducible, and uniform layers of powder for the reliable production of high-quality parts, where properties of powder are central to achieving this. Among these properties, powder flowability and spreadability play critical roles in determining the quality of these powder layers. While extensive research has been conducted on powder flow and spreading behaviour, and on their characterisation, there is little critical comparison and review of these terms in the context of AM. Such a review is necessary to further develop and enhance our comprehension of spreading dynamics and its relation to powder properties in AM systems. This review paper aims to build a coherent understanding of the correlation between powder characteristics and spreading in powder based additive manufacturing and its impact on manufactured parts. It highlights the current progress in comprehending spreading dynamics, the influence of powder characteristics, environmental conditions, spreading system, and the development of testing tools to assess powder spreadability. Furthermore, the paper critically discusses the challenge of finding appropriate quantitative metrics and recent advances in the use of standardised methods for evaluating powder spreadability.

Item Type:	Article
Uncontrolled Keywords:	powder spreading; powder flowability; powder properties; quality of layer and final products
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Engineering (ENG)
Last Modified:	16 Jul 2024 10:15
URI:	http://gala.gre.ac.uk/id/eprint/47612

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