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Environmental and Safety Aspects of AM Metal Powder Recycling
Swerim, Sweden.
RISE - Research Institutes of Sweden (2017-2019), Materials and Production, IVF.ORCID iD: 0000-0003-1826-8665
RISE - Research Institutes of Sweden (2017-2019), Materials and Production, IVF.
Swerim, Sweden.
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2019 (English)In: Euro PM2019 Congress Proceedings, 2019Conference paper, Published paper (Refereed)
Abstract [en]

Repeated recirculation of powder in AM processes ultimately results in a powder with degraded properties. We firstly discuss this topic and describe an experiment designed to understand the mechanisms behind the degradation. Secondly, we perform yield analysis for build jobs on a SLM 125 at RISE IVF. Further on, we consider the required resources and estimate the emitted carbon dioxide equivalents (kgCO2eq) during production of the PBF-LB fraction of two gas atomized powders. The first powder is a tool steel alloy that emits 3.1 kgCO2eq/kg; the second powder is Hastelloy X (HX) that emits 24.2 kgCO2eq/kg. The HX powder, if degraded, is hence very desirable to recycle. Producing 1 kg of PBF-LB fraction from recycled HX material causes 5.7 kgCO2eq vs 24.2 from virgin sources. Finally, we review the health and safety aspects of recirculation and recycling of powder.

Place, publisher, year, edition, pages
2019.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ri:diva-51012OAI: oai:DiVA.org:ri-51012DiVA, id: diva2:1510885
Conference
Euro PM2019 Congress & Exhibition in Maastricht, The Netherlands
Available from: 2020-12-17 Created: 2020-12-17 Last updated: 2023-05-25Bibliographically approved

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https://www.epma.com/publications/euro-pm-proceedings/category/euro-pm2019

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Zackrisson, Mats

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