Ultrasonic assisted milling of a CoCrFeNi medium entropy alloy
- Medium and High Entropy Alloys (MEA/HEA) are recently developed material classes, providing manifold applications, e.g., due to extraordinary structural properties. In that connection, the machinability as important issue for the processing of these materials was not in the scientific focus. This study focusses on experimental analysis of milling process conditions including ultrasonic assisted milling (USAM) and their effects on the resulting surface integrity of equiatomic CoCrFeNi-MEA specimens. For that reason, milling parameters (cutting speed, feed per cutting edge) were systematically varied for both conventional milling and USAM. The surface integrity was analyzed in terms of topography, defects, and residual stresses. Especially USAM leads to a decrease of occurring cutting forces and, hence, to an improvement of the surface integrity. Beneficial effects were observed in terms of lower tensile residual stresses at high cutting speed and feed per cutting edge.
Autor*innen: | Tim Richter |
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Koautor*innen: | D. Delgado, Andreas Börner, Dirk SchröpferORCiD, Michael RhodeORCiD |
Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2022 |
Organisationseinheit der BAM: | 9 Komponentensicherheit |
9 Komponentensicherheit / 9.0 Abteilungsleitung und andere | |
9 Komponentensicherheit / 9.2 Versuchsanlagen und Prüftechnik | |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Freie Schlagwörter: | Medium entropy alloy; Ultrasonic assisted machining |
Themenfelder/Aktivitätsfelder der BAM: | Material |
Material / Degradation von Werkstoffen | |
Veranstaltung: | 6th CIRP Conference on Surface Integrity 2022, Lyon, 06 |
Veranstaltungsort: | Lyon, France |
Beginndatum der Veranstaltung: | 08.06.2022 |
Enddatum der Veranstaltung: | 10.06.2022 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 05.08.2022 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |