Conveners
Power Production and Characterization: I
- Marie-Noemi Bold (RWTH Aachen University)
Power Production and Characterization: Power Production and Characterization II
- Martin Dopler (hightech metal Prozessentwicklungsgesellschaft mbH)
Power Production and Characterization: Power Production and Characterization III
- Pavel Krakhmalev (Karlstad University)
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Elin Olsson (Erasteel Kloster AB)25/11/2019, 16:30Powder for MAMOral PresentationThe rapidly growing implementation of AM technologies has led to a growing range of new applications. With new applications comes the demand for new alloys and properties. The final properties of AM materials are influenced by many different powder related properties, such as particle size distribution, chemical composition and flowability. Different machines use different manufacturing...Go to contribution page
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Jasmin Saewe (Fraunhofer Institute for Laser Technology ILT)25/11/2019, 16:50Powder for MAMOral PresentationLaser powder bed fusion (LPBF) is an additive manufacturing process employed in many industries, for example for aerospace, automotive and medical applications. In these sectors, nickel-, aluminum- and titanium-based alloys are mainly used. In contrast, the mechanical engineering industry is interested in tool steels for many of their applications. Current research is often limited to hot work...Go to contribution page
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Martin Dopler (hightech metal Prozessentwicklungsgesellschaft mbH)25/11/2019, 17:10Powder for MAMOral PresentationFor many contemporary powdermetallurgical applications, spherical powders are preferred. Spherical particles have a lower oxygen content, a better flowability and their behaviour is – compared to irregular particles – better predictable. The powder production process via melt atomization can be divided into the following steps: a. primary breakup into ligaments b. ligament...Go to contribution page
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Ms Marie-Noemi Bold (RWTH Aachen University)25/11/2019, 17:30Powder for MAMOral PresentationIn this contribution, a method for screening and developing new materials by using L-PBF will be introduced. Up to now, the process of designing and developing new alloys is tedious and expensive. That can be significantly accelerated by the Rapid Alloy Development (RAD) approach. This approach describes a new and faster way of creating tailored alloys. New alloys can be fabricated and...Go to contribution page
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Jonas Zielinski (Digital Additive Production RWTH Aachen University)26/11/2019, 09:00Powder for MAMOral PresentationDespite the advantages in terms of geometrical freedom or lightweight design, the use of L-PBF is often limited by economic constraints or currently achievable part costs, respectively. With an expected increase of L-PBF machine productivity during the next years, an increase of the share of material costs and the share of non-productive time for powder layer application process is to be...Go to contribution page
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Lorenzo Marchetti (KTH - Kungliga Tekniska högskolan)26/11/2019, 09:20Powder for MAMOral PresentationThe flowability of a powder is an important characteristic dependent on both the particle ensemble’s physical properties as well as the testing equipment and conditions. In additive manufacturing processes, flowability can be an indicator of the quality of the deposited powder layer. However, flowability significance is not always clear. In this study, we carried out a comparison between...Go to contribution page
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Valentina Vicario (MIMETE Srl)26/11/2019, 09:40Powder for MAMOral PresentationOne of the most frequently asked question by users is how long metal powders can be used. MIMETE, the new Italian metal powders producer, defined an internal Design of Experiment to map the effect of atmosphere (from air to 100% argon), temperature and time on different powders, considering both various alloys and granulometric distribution. The properties analyzed after exposure were...Go to contribution page
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AYDIN SELTE (Uddeholms AB)26/11/2019, 10:30Powder for MAMOral PresentationElectron Beam Melting (EBM) is one of the most promising techniques within Metal Additive Manufacturing (AM) techniques, which currently is for the fabrication of high performance components for the aerospace and medical industries, mostly. Among the industrial applications envisioned for the future of EBM, the fabrication of high carbon steels for the tooling industry is of great interest....Go to contribution page
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Daniela Ehgartner (Anton Paar)26/11/2019, 10:50Powder for MAMOral PresentationNowadays rheology is quite commonly known and established in industries such as food and beverages, body care, or petroleum; rheology for metal melts is still at the beginning but gets more and more established in both, research and industry. Rheology helps to determine the viscosity of a certain material at different conditions like temperatures or shear rates. Viscosity is one of the most...Go to contribution page
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Mihaela Albu (ZFE Graz)26/11/2019, 11:10Powder for MAMOral PresentationThis paper presents an advanced microstructural analysis of the powder as well as of the as-built and heat treated additive manufactured parts of Al-alloy and N700 steel. Evolution of the microstructure during the heat-treatment was studied in detail in order to better understand the mechanical properties of the printed parts. For crystallographic and chemical characterization down to atomic...Go to contribution page
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Jan Frostevarg (Luleå University of Technology)26/11/2019, 11:30Laser Melting, Electron Beam Melting & Direct Energy Deposition ProcessesOral PresentationAdditive Manufacturing provides many opportunities to design and manufacture parts that are difficult or not possible to produce with conventional methods, but in some cases even more important, to be able to produce these or any metal replacement parts in remote places like the moon or Mars. In laser powder bed fusion (LPBF), melt pool dynamics and stability is dependent on a large number of...Go to contribution page