Reiber, Thorsten ; Rüdesheim, J. ; Weigold, Matthias ; Abele, Eberhard ; Musekamp, J. ; Oechsner, Matthias (2021)
Influence of contour scans on surface roughness and pore formation using Scalmalloy® manufactured by laser powder bed fusion (PBF‐LB).
In: Materials Science and Engineering Technology = Materialwissenschaft und Werkstofftechnik, 52 (4)
doi: 10.1002/mawe.202000287
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
The scandium modified aluminium alloy Scalmalloy\circledR is specifically developed for the use in laser-based powder bed fusion (PBF-LB). It is supposed to show potential in the production of lightweight structures due to its high specific strength compared to other aluminium alloys. A limiting factor is the high surface roughness of additively manufactured parts, which has a negative influence on its mechanical properties, especially under cyclic loads. In order to reduce the surface roughness, methods of design of experiments (DoE) are applied to develop contour parameters. Additionally, the formation of pores in keyhole-mode welding and strategies to reduce the porosity in the contour area are investigated. The surface roughness of vertical walls can be reduced down to Ra \textless 7\textgreekmm using contour scans with a line energy EL \textgreater0.9J mm-1 but keyhole pores start to form applying EL \textgreater0.6-- 0.75J mm-1. Two contour parameter sets in different EL-ranges are developed that can be used to reduce the surface roughness compared to parameter sets without contour scans, without increasing the porosity in the contour area. Their impact on the mechanical properties has to be further investigated.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Reiber, Thorsten ; Rüdesheim, J. ; Weigold, Matthias ; Abele, Eberhard ; Musekamp, J. ; Oechsner, Matthias |
| Art des Eintrags: | Bibliographie |
| Titel: | Influence of contour scans on surface roughness and pore formation using Scalmalloy® manufactured by laser powder bed fusion (PBF‐LB) |
| Sprache: | Englisch |
| Publikationsjahr: | 14 April 2021 |
| Verlag: | Wiley-Blackwell - STM |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials Science and Engineering Technology = Materialwissenschaft und Werkstofftechnik |
| Jahrgang/Volume einer Zeitschrift: | 52 |
| (Heft-)Nummer: | 4 |
| DOI: | 10.1002/mawe.202000287 |
| URL / URN: | https://onlinelibrary.wiley.com/doi/10.1002/mawe.202000287 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | The scandium modified aluminium alloy Scalmalloy\circledR is specifically developed for the use in laser-based powder bed fusion (PBF-LB). It is supposed to show potential in the production of lightweight structures due to its high specific strength compared to other aluminium alloys. A limiting factor is the high surface roughness of additively manufactured parts, which has a negative influence on its mechanical properties, especially under cyclic loads. In order to reduce the surface roughness, methods of design of experiments (DoE) are applied to develop contour parameters. Additionally, the formation of pores in keyhole-mode welding and strategies to reduce the porosity in the contour area are investigated. The surface roughness of vertical walls can be reduced down to Ra \textless 7\textgreekmm using contour scans with a line energy EL \textgreater0.9J mm-1 but keyhole pores start to form applying EL \textgreater0.6-- 0.75J mm-1. Two contour parameter sets in different EL-ranges are developed that can be used to reduce the surface roughness compared to parameter sets without contour scans, without increasing the porosity in the contour area. Their impact on the mechanical properties has to be further investigated. |
| Freie Schlagworte: | Additive manufacturing, Contour porosity, Keyhole-mode welding, Melt pool dimensions, Surface roughness |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Institut für Produktionsmanagement und Werkzeugmaschinen (PTW) 16 Fachbereich Maschinenbau > Institut für Produktionsmanagement und Werkzeugmaschinen (PTW) > TEC Fertigungstechnologie |
| Hinterlegungsdatum: | 16 Aug 2021 06:34 |
| Letzte Änderung: | 28 Dez 2023 07:22 |
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Influence of contour scans on surface roughness and pore formation using Scalmalloy® manufactured by laser powder bed fusion (PBF‐LB). (deposited 22 Dez 2023 13:33)
- Influence of contour scans on surface roughness and pore formation using Scalmalloy® manufactured by laser powder bed fusion (PBF‐LB). (deposited 16 Aug 2021 06:34) [Gegenwärtig angezeigt]
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