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Material Properties and Quality Considerations for Tool Steels Made with AM Technology

Materialeigenschaften und Überlegungen zur Qualität von Werkzeugstählen hergestellt durch Generative Fertigungsverfahren

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Abstract

Developing a tool using the AM technique is different and requires that the tool manufacturer and the designer fully understand the possibilities as well as the limitations of an AM produced part. The aim of this study was to compare the properties and microstructure of conventionally produced tool steels with tool steels manufactured using Selective Laser Melting (SLM) technology. The tool steel investigated was a precipitation hardening tool steel manufactured with two different SLM systems, using the same starting material and powder production route for both systems. The results are discussed from the material, quality, and application perspective and highlight important material and processing considerations for the use of AM technology in tooling applications.

Zusammenfassung

Die Entwicklung eines Werkzeugs durch Generative Fertigungsverfahren erfordert vom Werkzeughersteller und Designer, sowohl die Möglichkeiten als auch die Einschränkungen eines mittels AM-produzierten Teils vollständig zu verstehen. Das Ziel dieses Beitrags ist es, die Eigenschaften und die Mikrostruktur von konventionell hergestellten Werkzeugstählen mit denen durch selektives Laserschmelzen (SLM) hergestellten Werkzeugstählen zu vergleichen. Der untersuchte Werkzeugstahl war ein ausscheidungsgehärteter Werkzeugstahl, der mit zwei verschiedenen SLM-Systemen hergestellt wurde, bei dem für beide Herstellungsarten das gleiche Ausgangsmaterial und die gleiche Pulverproduktionsroute verwendet wurde. Die Ergebnisse werden aus Sicht der Material-, Qualitäts- und Anwendungsperspektive diskutiert und heben wichtige Material- und Verarbeitungsüberlegungen für den Einsatz der AM-Technologie für Werkzeuganwendungen hervor.

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Authors and Affiliations

  1. Uddeholms AB, SE-683 85, Hagfors, Sweden

    Christos Oikonomou, Seshendra Karamchedu, Stefan Heino & Johnny Sjöström

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  1. Christos Oikonomou
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  2. Seshendra Karamchedu
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  3. Stefan Heino
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  4. Johnny Sjöström
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Correspondence to Christos Oikonomou.

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Oikonomou, C., Karamchedu, S., Heino, S. et al. Material Properties and Quality Considerations for Tool Steels Made with AM Technology. Berg Huettenmaenn Monatsh 162, 188–191 (2017). https://doi.org/10.1007/s00501-017-0591-x

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  • DOI: https://doi.org/10.1007/s00501-017-0591-x

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