Laser powder bed fusion applied to the manufacture of bulk or structured magnetic cores

Baco-Carles, Valérie; Huguet, Thomas; Llibre, Jean-François; Baylac, Vincent; Pasquet, Isabelle; Tailhades, Philippe

doi:10.1016/j.jmrt.2022.02.118

Cited by 5 publications

(1 citation statement)

References 19 publications

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“…The narrow slits, on the other hand, are less continuous due to the manufacturing process, resulting in spatially larger eddy currents due to bridges between the slits. These results are consistent with other studies where the integration of slits oriented along the flux direction in 3%SiFe ring samples also resulted in lower iron losses [23][24][25][26][27]. However, the slits in these studies are provided with several bridges due to mechanical stability and therefore not continuous.…”

Section: Discussionsupporting

confidence: 92%

Additively Manufactured Transverse Flux Machine Components with Integrated Slits for Loss Reduction

Kresse

Schurr

Lanz

et al. 2022

Metals

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Laser powder bed fusion (L-PBF) was used to produce stator half-shells of a transverse flux machine from pure iron (99.9% Fe). In order to reduce iron losses in the bulk components, radially extending slits with a nominal width of 150 and 300 µm, respectively, were integrated during manufacturing. The components were subjected to a suitable heat treatment. In addition to a microscopic examination of the slit quality, the iron losses were also measured using both a commercial and a self-developed measurement setup. The investigations showed the iron losses can be reduced by up to 49% due to the integrated slits and the heat treatment.

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