Zitieren Sie bitte immer diesen URN: urn:nbn:de:kobv:b43-602651
Thermal history transfer from complex components to representative test specimens in laser powder bed fusion
- Additively manufactured components are characterized by heterogeneous mechanical properties due to variations of the microstructure, flaws and residual stresses resulting from the inhomogeneous fabrication process. The large number of influencing factors poses a further challenge in understanding the correlation between material properties, process parameters and component geometry. Therefore, the qualification of components based on witness specimens produced within the same job is questionable. This work aims to present a new strategy for the characterization of PBF-LB/M components based on representative specimens. The key assumption is the feasibility of a transfer of the thermal history from a component to a specimen. It is assumed that similar material properties are determined for components and specimens produced adopting a similar thermal history. After the definition of a region of interest in the component, a combination of thermal analyses by means of finite elements andAdditively manufactured components are characterized by heterogeneous mechanical properties due to variations of the microstructure, flaws and residual stresses resulting from the inhomogeneous fabrication process. The large number of influencing factors poses a further challenge in understanding the correlation between material properties, process parameters and component geometry. Therefore, the qualification of components based on witness specimens produced within the same job is questionable. This work aims to present a new strategy for the characterization of PBF-LB/M components based on representative specimens. The key assumption is the feasibility of a transfer of the thermal history from a component to a specimen. It is assumed that similar material properties are determined for components and specimens produced adopting a similar thermal history. After the definition of a region of interest in the component, a combination of thermal analyses by means of finite elements and in-situ experimental determination of the thermal history through infrared thermography is used to produce test coupons with a similar thermal history. The effectiveness of the procedure is demonstrated on a pressure vessel for applications in the chemical industry.…
Autor*innen: | Gunther MohrORCiD, Mohsin Ali ChaudryORCiD, Nils ScheuschnerORCiD, Sergio Blasón GonzalezORCiD, Mauro Madia, Kai HilgenbergORCiD |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Progress in additive manufacturing |
Jahr der Erstveröffentlichung: | 2024 |
Organisationseinheit der BAM: | 8 Zerstörungsfreie Prüfung |
8 Zerstörungsfreie Prüfung / 8.3 Thermografische Verfahren | |
9 Komponentensicherheit | |
9 Komponentensicherheit / 9.4 Integrität von Schweißverbindungen | |
9 Komponentensicherheit / 9.6 Additive Fertigung metallischer Komponenten | |
Veröffentlichende Institution: | Bundesanstalt für Materialforschung und -prüfung (BAM) |
Verlag: | Springer |
Verlagsort: | Cham, Switzerland |
Aufsatznummer: | 00689 |
Erste Seite: | 1 |
Letzte Seite: | 16 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Freie Schlagwörter: | Additive manufacturing; Heat accumulation; In situ monitoring; Process simulation; Representative specimens; Thermal history |
Themenfelder/Aktivitätsfelder der BAM: | Material |
Material / Additive Fertigung | |
DOI: | 10.1007/s40964-024-00689-8 |
URN: | urn:nbn:de:kobv:b43-602651 |
ISSN: | 2363-9512 |
ISSN: | 2363-9520 |
Verfügbarkeit des Dokuments: | Datei für die Öffentlichkeit verfügbar ("Open Access") |
Lizenz (Deutsch): | Creative Commons - CC BY - Namensnennung 4.0 International |
Datum der Freischaltung: | 19.06.2024 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 19.06.2024 |
Schriftenreihen ohne Nummerierung: | Wissenschaftliche Artikel der BAM |