3-5 November 2021
Wirtschaftskammer Österreich
Europe/Vienna timezone

Investigation of the Impact of Powder Shape on Spreading Dense Layers Using the Spreading Tester

4 Nov 2021, 10:30
Julius Raab Saal (Wirtschaftskammer Österreich)

Julius Raab Saal

Wirtschaftskammer Österreich

Wiedner Hauptstraße 63 1045 Wien, Österreich
Oral Presentation Powder for MAM POWDER FOR MAM


Marco Mitterlehner (voestalpine BÖHLER Edelstahl GmbH & Co KG)


In laser powder bed fusion processes, spreading as dense and fully covered powder layers as possible is of crucial importance for good processability of powders. Poorly covered layers or layers with unappropriated features in it such as for instance elongated, powderless craters in the direction of spreading might result in insufficient quality of the printed parts. The reason for this could be either poor powder quality or a poorly adjusted build job. To investigate the surface coverage of a single spread layer, a new method was developed using the Spreading Tester. With this, two powder grades differing mostly in their shape were used to investigate the impact of powder shape on the surface coverage.

Primary author

Marco Mitterlehner (voestalpine BÖHLER Edelstahl GmbH & Co KG)


Herbert Danninger (Technische Universität Wien) Christian Gierl-Mayer (Technische Universität Wien) Harald Gschiel (voestalpine BÖHLER Edelstahl GmbH & Co KG)

Presentation Materials