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Layer deposition quality and powder properties in metal additive manufacturing: a study exploring the use of a simple shadowgraphy technique to explore the effect of spreader rake configuration and powder grain size on limits of spreadability

Layer deposition quality and powder properties in metal additive manufacturing: a study exploring the use of a simple shadowgraphy technique to explore the effect of spreader rake configuration and powder grain size on limits of spreadability

Wardle, J. P. and Bradley, M. S. A. (2019) Layer deposition quality and powder properties in metal additive manufacturing: a study exploring the use of a simple shadowgraphy technique to explore the effect of spreader rake configuration and powder grain size on limits of spreadability. Powder Technology. ISSN 0032-5910 (Print), 1873-328X (Online) (Submitted)

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Abstract

This paper gives insight into the limit of spreadability regarding Aluminium 7050 powder used in the promising Additive Manufacturing technique of SMS manufacturing, particularly focusing on the effects of changing powder grain size and scraper blade (shape and size). A method of testing these limits has been developed and implemented, showing that a finer Aluminium 7050 powder leads to a lower limit of spreadability, with application to SMS this allows the thinnest consistent layer of powder to be deposed leading to the production of higher resolution components.

Item Type: Article
Uncontrolled Keywords: Aluminium 7050 powder, Additive Manufacturing (AM), SMS manufacturing, Selective Laser Sintering (SLS), Selective Metal Powder Sintering (SMS)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Engineering Science
Last Modified: 03 Nov 2019 22:19
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/25778

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