Abele, Eberhard ; Kniepkamp, Michael (2015)
Analysis and optimisation of vertical surface roughness in micro selective laser melting.
In: Surface Topography: Metrology and Properties, IOP Publishing Ltd, 3
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Surface roughness is a major disadvantage of many additive manufacturing technologies like selective laser melting (SLM) compared to established processes like milling or drilling. With recent advancements the resolution of the SLM process could be increased to layer heights of less than 10 μm leading to a new process called micro selective laser melting (μSLM). The purpose of this paper is to analyze the influence of the μSLM process parameters and exposure strategies on the morphology of vertical surfaces. Contour scanning using varying process parameters was used to increase the surface quality. It is shown that it is possible to achieve average surface roughness of less than 1.7 μmusing low scan speeds compared to 8–10 μmwithout contour scanning. Furthermore it is shown that a contour exposure prior to the core exposure leads to surface defects and thus increased roughness.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Abele, Eberhard ; Kniepkamp, Michael |
| Art des Eintrags: | Bibliographie |
| Titel: | Analysis and optimisation of vertical surface roughness in micro selective laser melting |
| Sprache: | Englisch |
| Publikationsjahr: | 2015 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Surface Topography: Metrology and Properties, IOP Publishing Ltd |
| Jahrgang/Volume einer Zeitschrift: | 3 |
| Kurzbeschreibung (Abstract): | Surface roughness is a major disadvantage of many additive manufacturing technologies like selective laser melting (SLM) compared to established processes like milling or drilling. With recent advancements the resolution of the SLM process could be increased to layer heights of less than 10 μm leading to a new process called micro selective laser melting (μSLM). The purpose of this paper is to analyze the influence of the μSLM process parameters and exposure strategies on the morphology of vertical surfaces. Contour scanning using varying process parameters was used to increase the surface quality. It is shown that it is possible to achieve average surface roughness of less than 1.7 μmusing low scan speeds compared to 8–10 μmwithout contour scanning. Furthermore it is shown that a contour exposure prior to the core exposure leads to surface defects and thus increased roughness. |
| Freie Schlagworte: | additive manufacturing, selective laser melting, 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) > Additive Fertigung und Dentale Technologie (2021 aufgegangen in TEC Fertigungstechnologie) |
| Hinterlegungsdatum: | 22 Dez 2015 07:56 |
| Letzte Änderung: | 09 Jun 2017 13:31 |
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