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dc.contributor.author
Ferchow, Julian
dc.contributor.author
Hofmann, Urs
dc.contributor.author
Meboldt, Mirko
dc.contributor.editor
Mpofu, Khumbulani
dc.contributor.editor
Butala, Peter
dc.date.accessioned
2021-07-06T07:16:23Z
dc.date.available
2020-11-24T17:49:05Z
dc.date.available
2020-11-25T06:26:09Z
dc.date.available
2021-07-06T07:16:23Z
dc.date.issued
2020
dc.identifier.issn
2212-8271
dc.identifier.other
10.1016/j.procir.2020.02.201
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/452859
dc.identifier.doi
10.3929/ethz-b-000452859
dc.description.abstract
In the last years the industrial application of selective laser melting (SLM) has been increased. Main advantages of SLM are the reduction of production time for small batches and the freedom to generate complex designs. However, the rough surface quality of SLM parts currently limits their use and hinders the application in several industry sectors such as the hygienic and food industry. Due to the high complexity of SLM parts, the application of conventional processes is limited. Electropolishing (EP) is a promising process for reducing the roughness of simple SLM parts. However, it has not yet been explored intensively on complex SLM parts. Additionally, design constraints for the design of SLM parts to enable post processing are not yet existent. This experimental study investigates the resulting roughness of EP on different SLM design elements. Three types of EP were investigated, direct current, pulse/pulse reverse current and pulsed current EP. Additionally, the current density and processing time were varied. The SLM test sample (316L) contains internal pipe surfaces with different diameters in different orientations, overhangs and a lattice structure. To analyze the surface roughness, the arithmetic mean height of the roughness (Sa) was measured. At the end of the paper the findings on the process and the design constraints for SLM parts are summarized. The results show a significant improvement of the roughness on the external surfaces of the test sample for all parameter sets. The orientation of the surfaces with respect to the build direction influences the reduction of Sa. Increasing the pipe diameter leads to an increasing effect of internal EP. Finally, the DC parameter set showed a significantly better improvement of the Sa value on the internal lattice structure.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject
Additive manufacturing
en_US
dc.subject
Selective laser melting
en_US
dc.subject
Electropolishing
en_US
dc.subject
Post processing
en_US
dc.subject
Internal structures
en_US
dc.subject
Design constraints
en_US
dc.title
Enabling Electropolishing of Complex Selective Laser Melting Structures
en_US
dc.type
Conference Paper
dc.rights.license
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
dc.date.published
2020-08-18
ethz.book.title
Enhancing design through the 4th Industrial Revolution Thinking
en_US
ethz.journal.title
Procedia CIRP
ethz.journal.volume
91
en_US
ethz.pages.start
472
en_US
ethz.pages.end
477
en_US
ethz.size
6 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.event
30th CIRP Design 2020 (CIRP Design 2020) (virtual)
en_US
ethz.event.location
Pretoria, South Africa
en_US
ethz.event.date
May 5-8, 2020
en_US
ethz.notes
Due to the Coronavirus (COVID-19) the conference was conducted virtually.
en_US
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02665 - Inst. f. Design, Mat. und Fabrikation::03943 - Meboldt, Mirko / Meboldt, Mirko
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02665 - Inst. f. Design, Mat. und Fabrikation::03943 - Meboldt, Mirko / Meboldt, Mirko
en_US
ethz.date.deposited
2020-11-24T17:49:27Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-11-25T06:26:20Z
ethz.rosetta.lastUpdated
2022-03-29T10:17:23Z
ethz.rosetta.versionExported
true
ethz.COinS
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