Abele, Eberhard ; Stoffregen, Hanns Alexander ; Kniepkamp, Michael ; Lang, Sebastian ; Hampe, Manfred (2015)
Selective laser melting for manufacturing of thin-walled porous elements.
In: Journal of Materials Processing Technology, 215
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Selective laser melting (SLM) as additive manufacturing technology is studied in this paper for the gen-eration of thin-walled elements with defined porosity characteristics. Building accuracy is studied andoptimised regarding the manufacturing of thin walls. Leakage tests were performed to analyse the effectof wall thickness on gastightness. The influences of the SLM process parameters laser power, scan speed,and hatch distance on porosity and mechanical characteristics are investigated using a DoE approach.Porosity, permeability, pore size distribution, and tensile strength were analysed. Statistical significantregression models were found for porosity and tensile strength which allow tailored properties within thestudied design space. A maximum porosity of 17.35 with a permeability of 2560 E-12 m2was obtained.Macro pore sizes showed a unimodal pore size distribution with peaks between 7 and 16
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Abele, Eberhard ; Stoffregen, Hanns Alexander ; Kniepkamp, Michael ; Lang, Sebastian ; Hampe, Manfred |
| Art des Eintrags: | Bibliographie |
| Titel: | Selective laser melting for manufacturing of thin-walled porous elements |
| Sprache: | Englisch |
| Publikationsjahr: | 2015 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Materials Processing Technology |
| Jahrgang/Volume einer Zeitschrift: | 215 |
| URL / URN: | http://dx.doi.org/10.1016/j.jmatprotec.2014.07.017 |
| Kurzbeschreibung (Abstract): | Selective laser melting (SLM) as additive manufacturing technology is studied in this paper for the gen-eration of thin-walled elements with defined porosity characteristics. Building accuracy is studied andoptimised regarding the manufacturing of thin walls. Leakage tests were performed to analyse the effectof wall thickness on gastightness. The influences of the SLM process parameters laser power, scan speed,and hatch distance on porosity and mechanical characteristics are investigated using a DoE approach.Porosity, permeability, pore size distribution, and tensile strength were analysed. Statistical significantregression models were found for porosity and tensile strength which allow tailored properties within thestudied design space. A maximum porosity of 17.35 with a permeability of 2560 E-12 m2was obtained.Macro pore sizes showed a unimodal pore size distribution with peaks between 7 and 16 |
| Freie Schlagworte: | Selective laser melting, Additive manufacturing, Porosity, Thin walls |
| 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) 16 Fachbereich Maschinenbau > Fachgebiet für Thermische Verfahrenstechnik (TVT) Profilbereiche Profilbereiche > Thermo-Fluids & Interfaces Exzellenzinitiative Exzellenzinitiative > Exzellenzcluster Zentrale Einrichtungen |
| Hinterlegungsdatum: | 10 Sep 2014 08:12 |
| Letzte Änderung: | 09 Apr 2020 09:21 |
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