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dc.contributor.author
Schmid, Manfred
dc.contributor.author
Kleijnen, Rob
dc.contributor.author
Vetterli, Marc
dc.contributor.author
Wegener, Konrad
dc.date.accessioned
2017-11-24T10:51:36Z
dc.date.available
2017-11-24T09:23:57Z
dc.date.available
2017-11-24T10:51:36Z
dc.date.issued
2017-06
dc.identifier.issn
2076-3417
dc.identifier.other
10.3390/app7050462
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/213352
dc.identifier.doi
10.3929/ethz-b-000213352
dc.description.abstract
Different features of polymer powders influence the process of laser sintering (LS) and the properties of LS-parts to a great extent. This study investigates important aspects of the “powder/process/part”-property relationships by comparing two polyamide 12 (PA12) powders commercially available for LS, with pronounced powder characteristic differences (Duraform® PA and Orgasol® Invent Smooth). Due to the fact that the primary influence factor on polymer behaviour, the chemical structure of the polymer chain, is identical in this case, the impacts resulting from powder distribution, particle shape, thermal behaviour, and crystalline and molecular structure, can be studied in detail. It was shown that although both systems are PA12, completely different processing conditions must be applied to accomplish high-resolution parts. The reason for this was discovered by the different thermal behaviour based on the powder production and the resulting crystalline structure. Moreover, the parts built from Orgasol® Invent Smooth unveil mechanical properties with pronounced anisotropy, caused from the high melt viscosity and termination of polymer chains. Further differences are seen in relation to the powder characteristics and other significant correlations could be revealed. For example, the study demonstrated how the particle morphology and shape impact the surface roughness of the parts.
en_US
dc.format
PDF
en_US
dc.language.iso
en
en_US
dc.publisher
MDPI AG
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Additive Manufacturing
en_US
dc.subject
Laser sintering (LS)
en_US
dc.subject
Polyamide 12
en_US
dc.title
Influence of the Origin of Polyamide 12 Powder on the Laser Sintering Process and Laser Sintered Parts
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Applied Sciences
ethz.journal.volume
7
en_US
ethz.journal.issue
5
en_US
ethz.pages.start
462
en_US
ethz.pages.end
476
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.code.ddc
5 - Science::540 - Chemistry
en_US
ethz.publication.place
Basel , Switzerland
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.::02623 - Inst. f. Werkzeugmaschinen und Fertigung / Inst. Machine Tools and Manufacturing::03641 - Wegener, Konrad / Wegener, Konrad
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.::02623 - Inst. f. Werkzeugmaschinen und Fertigung / Inst. Machine Tools and Manufacturing::03641 - Wegener, Konrad / Wegener, Konrad
en_US
ethz.tag
Materials for Selective Laser Sintering
en_US
ethz.date.deposited
2017-11-24T09:23:58Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-11-24T10:51:45Z
ethz.rosetta.lastUpdated
2018-11-06T03:33:14Z
ethz.rosetta.versionExported
true
ethz.COinS
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