The effect of metal EOS 316L stainless steel additive manufacturing powder recycling on part characteristics and powder reusability

Quinn, P. and O’Halloran, S. and Lawlor, J. and Raghavendra, R. (2019) The effect of metal EOS 316L stainless steel additive manufacturing powder recycling on part characteristics and powder reusability. Advances in Materials and Processing Technologies, 5 (2). pp. 348-359. ISSN 2374-068X

Full text not available from this repository. (Request a copy)

Abstract

Direct metal laser sintering (DMLS) is a powder bed fusion (PBF) process commonly used within the medical device and aerospace industries to fabricate high value, complex components. Powder material used in the DMLS process can be costly and it is rare for a single build to require a full batch of powder. The un-melted powder, which differs in particle size and morphology from virgin powder, is often recycled for further builds. This work presents a study of the effects that recycling a stainless steel metal powder used in the DMLS process has on finished parts. Hence, in this paper, powder material characteristics, such as particle size, particle morphology and bulk chemical composition have been monitored throughout the recycling process. An analysis of parts manufactured via DMLS on an EOS M280 demonstrate the negative effect of powder recycling on part quality in terms of surface roughness, part density, hardness and dimensional accuracy. Results from this research provide an insight to the effect that recycling AM powders has on the powder characteristics and on the quality of the parts produced.

Item Type:	Article
Additional Information:	Funding Information: This work was supported by the Irish Manufacturing Research (IMR) [N/A]. The authors would like to thank Irish Manufacturing Research (IMR) for their funding and support of this research project. Publisher Copyright: © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.
Uncontrolled Keywords:	/dk/atira/pure/subjectarea/asjc/2500
Departments or Groups:
Depositing User:	Admin SSL
Date Deposited:	19 Oct 2022 23:01
Last Modified:	29 Jul 2023 19:10
URI:	http://repository-testing.wit.ie/id/eprint/3626

Actions (login required)

View Item