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Hybrid laser arc welding of X80 and X120 steel grade

  • The aim of the present work was to investigate the possibilities of hybrid laser arc welding regarding reliable production of longitudinal welds of high strength pipe steels X80 and X120 and to evaluate achievable mechanical properties of laser hybrid welds. The study focused on weld toughness examination in low temperature range up to –60°C. Suitable filler materials were identified in the context of this task. It could be shown that metal cored electrodes guaranteed sufficient Charpy impact toughness at low temperature for both investigated materials. Modern arc welding technologies such as modified pulsed spray arc were used to promote deeper penetration of the filler material into the narrow laser welding gap. Edge preparation with a 14 mm deep root face was considered as optimum, because no penetration of the filler material could be detected beyond this depth limit, and therefore, any metallurgical influences on the weld metal properties through the welding wire could beThe aim of the present work was to investigate the possibilities of hybrid laser arc welding regarding reliable production of longitudinal welds of high strength pipe steels X80 and X120 and to evaluate achievable mechanical properties of laser hybrid welds. The study focused on weld toughness examination in low temperature range up to –60°C. Suitable filler materials were identified in the context of this task. It could be shown that metal cored electrodes guaranteed sufficient Charpy impact toughness at low temperature for both investigated materials. Modern arc welding technologies such as modified pulsed spray arc were used to promote deeper penetration of the filler material into the narrow laser welding gap. Edge preparation with a 14 mm deep root face was considered as optimum, because no penetration of the filler material could be detected beyond this depth limit, and therefore, any metallurgical influences on the weld metal properties through the welding wire could be excluded.zeige mehrzeige weniger

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Metadaten
Autor*innen:Sergej Gook, Andrey GumenyukORCiD, Michael RethmeierORCiD
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Science and technology of welding and joining
Jahr der Erstveröffentlichung:2014
Herausgeber (Institution):Institute of Materials, Minerals and Mining
Verlag:Maney
Verlagsort:London
Jahrgang/Band:19
Ausgabe/Heft:1
Erste Seite:15
Letzte Seite:24
Freie Schlagwörter:High strength steel; Laser hybrid welding; Longitudinal weld; Modified spray arc; Pipeline
DOI:10.1179/1362171813Y.0000000154
URL:http://www.maneyonline.com/doi/full/10.1179/1362171813Y.0000000154
ISSN:1362-1718
ISSN:1743-2936
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:21.11.2013
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