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Dr Martin Dopler (hightech metal Prozessentwicklungsgesellschaft mbH)01/10/2020, 10:50Powder for MAMOral PresentationThe increasing demands on metal powders for additive manufacturing applications go hand in hand with an increasing energy consumption for producing these powders. For example, finer powders can be produced by increasing atomization gas pressure and temperature, or also by increasing melt superheat. More spherical particles (or particles with a lower oxygen content) can be produced by using...Go to contribution page
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Christoph Turk (voestalpine Böhler Edelstahl GmbH & Co KG)01/10/2020, 11:10Powder for MAMOral PresentationThe influence of additive manufacturing in various industries like automotive, aerospace, medicine and aviation is increasing constantly. Especially steel grades gain a lot of attention at this new and fast developing market. However, the weldability of a material defines and limits the processability for the Laser-Powder-Bed fusion technique. Therefore, case hardening steels, characterized by...Go to contribution page
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Dr Christopher Hulme-Smith (KTH Royal Institute of Technology)01/10/2020, 11:30Powder for MAMOral PresentationIn order to create a dense printed part of the right shape and dimensions, it is vital to have both a good understanding of the optimum printing process and powder that exhibits the right behaviour. Many studies have investigated the former, but relatively few have focused on the latter. Furthermore, there is no agreed method for spreading powder for testing or for how that layer should be...Go to contribution page
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Francesca Bonfanti (Mimete Srl)01/10/2020, 11:50Powder for MAMOral PresentationOne of the main qualitative risks related to powder metallurgy is contamination of metal powders: the mixing between different alloys, in fact, could cause anomalous segregation and possible undesired precipitation of secondary phases that might act as failure initiation. MIMETE is very careful about this aspect and applies strict rules all along the production process to avoid that different...Go to contribution page
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Francesca Bonfanti (Mimete Srl)01/10/2020, 12:10Powder for MAMOral PresentationParticle Size Distribution (PSD) is usually the first requirement of metal powders users and is considered extremely critical in Additive Manufacturing. Unfortunately this subject is not yet sufficiently standardized and it is difficult to define unambiguous technical specifications for all powders. MIMETE laboratory is equipped with mechanical sieves, laser diffraction, image analysis and...Go to contribution page
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Dr Mihaela Albu (ZFE Graz)01/10/2020, 14:00Powder for MAMOral PresentationThis paper presents correlative microscopy studies performed for the characterization of powders and additive manufactured parts. Starting from µm scale down to atomic resolution, micrographs and chemical analyses provide important information about the micro- and nano-structure as well as about mechanisms that can influence the properties of the final parts. Different investigation...Go to contribution page
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Mr Yannik Wilkens (SMS group GmbH)01/10/2020, 14:20Powder for MAMOral PresentationAn optimized powder atomization plant for the production of high-quality metal powder for Additive Manufacturing (AM) was developed at SMS group and set up at their 3D Competence Center in Mönchengladbach, Germany. To ensure the high quality of the powder produced, the implementation of adequate powder characterization is essential. The definition of AM process- and component-related...Go to contribution page
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Dr Pelle Mellin (Swerim AB)01/10/2020, 14:40Powder for MAMOral PresentationMoisture can potentially affect any production process that use metal powder, both the processing itself and the material that is produced. Here we study laser powder bed fusion (L-PBF) and the effect of moisture on built nickel-base material. We also present research on how humidity, and in turn moisture content, can affect processability including spreadability. In the first part, one lot...Go to contribution page
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Prof. Maurizio Vedani (Politecnico di Milano, Dept. of Mechanical Engineering)01/10/2020, 15:00Powder for MAMOral PresentationThe contribution describes the investigation carried out on novel steel powders based on the Fe-0,3C-1Cr-Mo alloy system to be processed by Laser-Powder Bed Fusion. Two powder batches have been studied in this respect, considering a reference gas atomized version and a variant of it produced by water atomization and post- treatment, with a modified chemistry. The materials have been...Go to contribution page
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