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Surface finishing of hard-to-machine cladding alloys for highly stressed components
- The supply and processing of materials for highly stressed components are usually cost-intensive. Efforts to achieve cost and resource efficiency lead to more complex structures and contours. Additive manufacturing steps for component repair and production offer significant economic advantages. Machining needs to be coordinated with additive manufacturing steps in a complementary way to produce functional surfaces suitable for the demands. Regarding inhomogeneity and anisotropy of the microstructure and properties as well as production-related stresses, a great deal of knowledge is still required for efficient use by small- and medium-size enterprises, especially for the interactions of subsequent machining of these difficult-to-machine materials. Therefore, investigations on these influences and interactions were carried out using a highly innovative cost-intensive NiCrMo alloy (IN725). These alloys are applied for claddings as well as for additive component manufacturing and repairThe supply and processing of materials for highly stressed components are usually cost-intensive. Efforts to achieve cost and resource efficiency lead to more complex structures and contours. Additive manufacturing steps for component repair and production offer significant economic advantages. Machining needs to be coordinated with additive manufacturing steps in a complementary way to produce functional surfaces suitable for the demands. Regarding inhomogeneity and anisotropy of the microstructure and properties as well as production-related stresses, a great deal of knowledge is still required for efficient use by small- and medium-size enterprises, especially for the interactions of subsequent machining of these difficult-to-machine materials. Therefore, investigations on these influences and interactions were carried out using a highly innovative cost-intensive NiCrMo alloy (IN725). These alloys are applied for claddings as well as for additive component manufacturing and repair welding using gas metal arc welding processes. For the welded specimens, the adequate solidification morphology, microstructure and property profile were investigated. The machinability in terms of finishing milling of the welded surfaces and comparative analyses for ultrasonic-assisted milling processes was examined focussing on surface integrity. It was shown that appropriate cutting parameters and superimposed oscillating of the milling tool in the direction of the tool rotation significantly reduce the mechanical loads for tool and workpiece surface. This contributes to ensure a high surface integrity, especially when cutting has to be carried out without cooling lubricants.…
Autor*innen: | Dirk SchröpferORCiD, K. Treutler, Andreas Börner, R. Gustus, Thomas KannengießerORCiD, V. Wesling, W. Maus-Friedrichs |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | The International Journal of Advanced Manufacturing Technology |
Jahr der Erstveröffentlichung: | 2021 |
Organisationseinheit der BAM: | 9 Komponentensicherheit |
9 Komponentensicherheit / 9.2 Versuchsanlagen und Prüftechnik | |
9 Komponentensicherheit / 9.4 Integrität von Schweißverbindungen | |
Veröffentlichende Institution: | Bundesanstalt für Materialforschung und -prüfung (BAM) |
Verlag: | Springer |
Jahrgang/Band: | 114 |
Ausgabe/Heft: | 5-6 |
Erste Seite: | 1427 |
Letzte Seite: | 1442 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Angewandte Physik | |
Freie Schlagwörter: | Cutting forces; IN725; Machining; Microstructure; Residual stresses; Surface integrity; Ultrasonic-assisted milling; WAAM |
Themenfelder/Aktivitätsfelder der BAM: | Energie |
Material | |
Material / Additive Fertigung | |
Material / Degradation von Werkstoffen | |
DOI: | 10.1007/s00170-021-06815-y |
URN: | urn:nbn:de:kobv:b43-524872 |
Verfügbarkeit des Dokuments: | Datei für die Öffentlichkeit verfügbar ("Open Access") |
Lizenz (Deutsch): | Creative Commons - CC BY - Namensnennung 4.0 International |
Datum der Freischaltung: | 22.04.2021 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 22.04.2021 |
Schriftenreihen ohne Nummerierung: | Wissenschaftliche Artikel der BAM |