Reiber, T. ; Rüdesheim, J. ; Weigold, M. ; Abele, E. ; Musekamp, J. ; Oechsner, M. (2023)
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, 2021, 52 (4)
doi: 10.26083/tuprints-00020136
Artikel, Zweitveröffentlichung, Verlagsversion
Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
The scandium modified aluminium alloy Scalmalloy® 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 < 7 μm using contour scans with a line energy EL >0.9 J mm⁻¹ but keyhole pores start to form applying EL >0.6– 0.75 J 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: | 2023 | ||||
Autor(en): | Reiber, T. ; Rüdesheim, J. ; Weigold, M. ; Abele, E. ; Musekamp, J. ; Oechsner, M. | ||||
Art des Eintrags: | Zweitveröffentlichung | ||||
Titel: | Influence of contour scans on surface roughness and pore formation using Scalmalloy® manufactured by laser powder bed fusion (PBF‐LB) | ||||
Sprache: | Englisch | ||||
Publikationsjahr: | 22 Dezember 2023 | ||||
Ort: | Darmstadt | ||||
Publikationsdatum der Erstveröffentlichung: | 2021 | ||||
Ort der Erstveröffentlichung: | Weinheim | ||||
Verlag: | Wiley-VCH | ||||
Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials Science and Engineering Technology = Materialwissenschaft und Werkstofftechnik | ||||
Jahrgang/Volume einer Zeitschrift: | 52 | ||||
(Heft-)Nummer: | 4 | ||||
DOI: | 10.26083/tuprints-00020136 | ||||
URL / URN: | https://tuprints.ulb.tu-darmstadt.de/20136 | ||||
Zugehörige Links: | |||||
Herkunft: | Zweitveröffentlichung DeepGreen | ||||
Kurzbeschreibung (Abstract): | The scandium modified aluminium alloy Scalmalloy® 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 < 7 μm using contour scans with a line energy EL >0.9 J mm⁻¹ but keyhole pores start to form applying EL >0.6– 0.75 J 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. |
||||
Alternatives oder übersetztes Abstract: |
|
||||
Freie Schlagworte: | Additive manufacturing, Surface roughness, Keyhole-mode welding, Melt pool dimensions, Contour porosity | ||||
Status: | Verlagsversion | ||||
URN: | urn:nbn:de:tuda-tuprints-201363 | ||||
Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie 600 Technik, Medizin, angewandte Wissenschaften > 670 Industrielle und handwerkliche Fertigung |
||||
Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet und Institut für Werkstoffkunde - Zentrum für Konstruktionswerkstoffe - Staatliche Materialprüfungsanstalt Darmstadt (IfW-MPA) 16 Fachbereich Maschinenbau > Institut für Produktionsmanagement und Werkzeugmaschinen (PTW) |
||||
Hinterlegungsdatum: | 22 Dez 2023 13:33 | ||||
Letzte Änderung: | 28 Dez 2023 07:21 | ||||
PPN: | |||||
Export: | |||||
Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
- 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) [Gegenwärtig angezeigt]
Frage zum Eintrag |
Optionen (nur für Redakteure)
Redaktionelle Details anzeigen |