Towards the Use of Representative Specimens for the Qualification of Additively Manufactured Parts
- The understanding of the process-structure-property-performance relationship is the key challenge for the qualification of safety-relevant parts made of additively manufactured metallic materials. The complexity of the manufacturing process and the number of influencing parameters affect the properties of test coupons and parts even fabricated in the same batch. This poses the problem of using reliable witness specimens for part qualification.
This work presents a new approach which aims at the fabrication of test coupons tailored to the specific microstructure and fatigue properties of a component. The first step consisted in the evaluation of the temperature field by means of process monitoring during the production of parts. The results were used to tailor finite element models which were then used to design witness specimens representative of the thermal history in the component. Finally, the fatigue properties of designed specimens were compared to coupons machined out of theThe understanding of the process-structure-property-performance relationship is the key challenge for the qualification of safety-relevant parts made of additively manufactured metallic materials. The complexity of the manufacturing process and the number of influencing parameters affect the properties of test coupons and parts even fabricated in the same batch. This poses the problem of using reliable witness specimens for part qualification.
This work presents a new approach which aims at the fabrication of test coupons tailored to the specific microstructure and fatigue properties of a component. The first step consisted in the evaluation of the temperature field by means of process monitoring during the production of parts. The results were used to tailor finite element models which were then used to design witness specimens representative of the thermal history in the component. Finally, the fatigue properties of designed specimens were compared to coupons machined out of the component.…


| Autor*innen: | Mauro MadiaORCiD |
|---|---|
| Koautor*innen: | Gunther Mohr, Mohsin Ali Chaudry, Nils Scheuschner, Sergio Gonzalez, Kai Hilgenberg |
| Dokumenttyp: | Vortrag |
| Veröffentlichungsform: | Präsentation |
| Sprache: | Englisch |
| Jahr der Erstveröffentlichung: | 2024 |
| Organisationseinheit der BAM: | 9 Komponentensicherheit |
| 9 Komponentensicherheit / 9.0 Abteilungsleitung und andere | |
| 9 Komponentensicherheit / 9.1 Komponenten für Energieträger | |
| 9 Komponentensicherheit / 9.4 Integrität von Schweißverbindungen | |
| 9 Komponentensicherheit / 9.6 Additive Fertigung metallischer Komponenten | |
| DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
| Freie Schlagwörter: | Additive Manufacturing; Damage tolerance; Process simulation; Structural integrity; Thermal history |
| Themenfelder/Aktivitätsfelder der BAM: | Material |
| Material / Additive Fertigung | |
| Veranstaltung: | TMS2024 – 153rd Annual Meeting & Exhibition |
| Veranstaltungsort: | Orlando, FL, USA |
| Beginndatum der Veranstaltung: | 03.03.2024 |
| Enddatum der Veranstaltung: | 07.03.2024 |
| Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
| Datum der Freischaltung: | 10.12.2025 |
| Referierte Publikation: | Nein |
| Eingeladener Vortrag (wissenschaftliche Konferenzen): | Ja |

