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Time and space resolved in situ LIBS analysis of chemical compositions during TIG welding

  • The Tungsten Inert Gas (TIG) welding process was combined with a Laser-Induced Breakdown Spectroscopy (LIBS) system for the in situ measurement of chemical compositions in austenitic stainless steels. The main aim of this project was the development of a prototype for a real-time chemical composition analysis system for welding applications. In principle, the measurement of the weld pool composition allows governing the weld pool solidification behaviour by controlling the welding parameters. This control loop allows avoiding weld defects. Chemical compositions of the weld seam is from a metallurgical point of view the most critical parameter for the occurrence of weld defects. Additionally, this new LIBS-based measurement system can be used for the monitoring and controlling of potentially dangerous emissions during the welding process in order to improve the working safety conditions. Preliminary investigations show that the chemical composition measurement of welds with LIBS isThe Tungsten Inert Gas (TIG) welding process was combined with a Laser-Induced Breakdown Spectroscopy (LIBS) system for the in situ measurement of chemical compositions in austenitic stainless steels. The main aim of this project was the development of a prototype for a real-time chemical composition analysis system for welding applications. In principle, the measurement of the weld pool composition allows governing the weld pool solidification behaviour by controlling the welding parameters. This control loop allows avoiding weld defects. Chemical compositions of the weld seam is from a metallurgical point of view the most critical parameter for the occurrence of weld defects. Additionally, this new LIBS-based measurement system can be used for the monitoring and controlling of potentially dangerous emissions during the welding process in order to improve the working safety conditions. Preliminary investigations show that the chemical composition measurement of welds with LIBS is possible during and after welding.zeige mehrzeige weniger

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  • LIBS_Welding_Taparli_BAM_04_07_17.pdf
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Metadaten
Autor*innen:Ugur Alp Taparli
Koautor*innen:Axel Griesche, Thomas Kannengießer, Lars Jacobsen, Katarzyna Michalik, David Mory
Dokumenttyp:Vortrag
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2017
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten
Freie Schlagwörter:Austenitic stainless steels; Chemical compositions; In situ measurements; LIBS; TIG welding
Veranstaltung:Forschungsseminar OvGU Magdeburg
Veranstaltungsort:Magdeburg, Germany
Beginndatum der Veranstaltung:04.07.2017
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:07.07.2017
Referierte Publikation:Nein
Eingeladener Vortrag:Nein
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