Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-4693
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dc.contributor.authorvon Petersdorff-Campen, Kai-
dc.contributor.authorHauswirth, Yannick-
dc.contributor.authorCarpenter, Julia-
dc.contributor.authorHagmann, Andreas-
dc.contributor.authorBoës, Stefan-
dc.contributor.authorSchmid Daners, Marianne-
dc.contributor.authorPenner, Dirk-
dc.contributor.authorMeboldt, Mirko-
dc.date.accessioned2018-08-17T13:10:06Z-
dc.date.available2018-08-17T13:10:06Z-
dc.date.issued2018-08-
dc.identifier.issn2076-3417de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/9212-
dc.description.abstractConventional magnet manufacturing is a significant bottleneck in the development processes of products that use magnets, because every design adaption requires production steps with long lead times. Additive manufacturing of magnetic components delivers the opportunity to shift to agile and test-driven development in early prototyping stages, as well as new possibilities for complex designs. In an effort to simplify integration of magnetic components, the current work presents a method to directly print polymer-bonded hard magnets of arbitrary shape into thermoplastic parts by fused deposition modeling. This method was applied to an early prototype design of a rotary blood pump with magnetic bearing and magnetic drive coupling. Thermoplastics were compounded with 56 vol.% isotropic NdFeB powder to manufacture printable filament. With a powder loading of 56 vol.%, remanences of 350 mT and adequate mechanical flexibility for robust processability were achieved. This compound allowed us to print a prototype of a turbodynamic pump with integrated magnets in the impeller and housing in one piece on a low-cost, end-user 3D printer. Then, the magnetic components in the printed pump were fully magnetized in a pulsed Bitter coil. The pump impeller is driven by magnetic coupling to non-printed permanent magnets rotated by a brushless DC motor, resulting in a flow rate of 3 L/min at 1000 rpm. For the first time, an application of combined multi-material and magnet printing by fused deposition modeling was shown. The presented process significantly simplifies the prototyping of products that use magnets, such as rotary blood pumps, and opens the door for more complex and innovative designs. It will also help postpone the shift to conventional manufacturing methods to later phases of the development process.de_CH
dc.language.isoende_CH
dc.publisherMDPIde_CH
dc.relation.ispartofApplied Sciencesde_CH
dc.rightshttp://creativecommons.org/licenses/by/4.0/de_CH
dc.subject.ddc670: Industrielle und handwerkliche Fertigungde_CH
dc.title3D printing of functional assemblies with integrated polymer-bonded magnets demonstrated with a prototype of a rotary blood pumpde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Materials and Process Engineering (IMPE)de_CH
dc.identifier.doi10.21256/zhaw-4693-
dc.identifier.doi10.3390/app8081275de_CH
zhaw.funding.euNode_CH
zhaw.issue1275de_CH
zhaw.originated.zhawYesde_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume8de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.webfeedKeramische Materialiende_CH
Appears in collections:Publikationen School of Engineering

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