Merschroth, Holger ; Harbig, Jana ; Weigold, Matthias ; Geis, Johannes ; Kirchner, Eckhard
Hrsg.: Bourell, David L. ; Beaman, Joseph J. ; Crawford, Richard H. (2022)
Evaluation of Solidification in Powder Bed Fusion using a High Speed Camera.
Solid Freeform Fabrication 2022. Austin, Texas (USA) (25.07.2022-27.07.2022)
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Powder bed fusion using a laser beam (PBF-LB) [1] enables geometrical design freedom to build parts for optimized functionality. Furthermore, PBF-LB allows microstructural design freedom. By controlling the solidification behavior microstructural adaptions can be made to obtain the full potential of the material. As the solidification rates and the thermal gradient depend on the local part geometry, new data-driven approaches, e.g. machine learning (ML), seem to be suitable for local microstructural adaptions. In this work an evaluation concept to analyze the thermal melt pool characteristics based on a high-speed camera is developed. The thermal radiation intensity of the melt pool is used to derive the thermal gradient and combined with an image rate of 41,000 fps the solidification rate is derived. The developed approach provides local data of the solidification for ML-based process adaptions but also serves for part individual quality assurance tasks.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2022 |
| Herausgeber: | Bourell, David L. ; Beaman, Joseph J. ; Crawford, Richard H. |
| Autor(en): | Merschroth, Holger ; Harbig, Jana ; Weigold, Matthias ; Geis, Johannes ; Kirchner, Eckhard |
| Art des Eintrags: | Bibliographie |
| Titel: | Evaluation of Solidification in Powder Bed Fusion using a High Speed Camera |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Austin, Texas (USA) |
| Verlag: | University of Texas |
| Buchtitel: | Solid Freeform Fabrication 2022: Proceedings of the 33rd Annual International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference |
| Veranstaltungstitel: | Solid Freeform Fabrication 2022 |
| Veranstaltungsort: | Austin, Texas (USA) |
| Veranstaltungsdatum: | 25.07.2022-27.07.2022 |
| Kurzbeschreibung (Abstract): | Powder bed fusion using a laser beam (PBF-LB) [1] enables geometrical design freedom to build parts for optimized functionality. Furthermore, PBF-LB allows microstructural design freedom. By controlling the solidification behavior microstructural adaptions can be made to obtain the full potential of the material. As the solidification rates and the thermal gradient depend on the local part geometry, new data-driven approaches, e.g. machine learning (ML), seem to be suitable for local microstructural adaptions. In this work an evaluation concept to analyze the thermal melt pool characteristics based on a high-speed camera is developed. The thermal radiation intensity of the melt pool is used to derive the thermal gradient and combined with an image rate of 41,000 fps the solidification rate is derived. The developed approach provides local data of the solidification for ML-based process adaptions but also serves for part individual quality assurance tasks. |
| 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: | 23 Mär 2023 07:38 |
| Letzte Änderung: | 23 Mär 2023 07:38 |
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