Laser-GMA-hybrid welding of longitudinally welded large-diameter pipes of grades API- X80/ X120
- Potentials of the hybrid laser arc welding processes were investigated regarding reliable production of longitudinal welds of high strength pipe steels X80 and X120 Hybrid laser arc welding of the root pass: Significant reduction in the weld cross section – savings of filler material Lower heat input into the base material - improvement of mechanical properties of the weld joint The arc type does not have any influence on the character of dilution in the laser part of the hybrid weld 14 mm deep root face was considered as optimum. No penetration of the filler material could be detected beyond this depth limit Metal powder filler wires, micro alloyed with Ni and partly with Cr and Mo, guaranteed sufficient Charpy impact toughness at low temperature for the both investigated materials: Hybrid laser arc welding is a very efficient process for the root pass in multi-pass welding and opens a large technical and economic potential for the manufacture of large pipes
Autor*innen: | Michael RethmeierORCiD |
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Weitere Person: | S. Gook, Andrey GumenyukORCiD |
Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2015 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Freie Schlagwörter: | Charpy V-notch tests; High power laser; Hybrid laser arc welding; Tensile tests; Weld specimens |
Veranstaltung: | The METEC and 2nd European Steel Technology and Application Days (ESTAD)conference |
Veranstaltungsort: | Düsseldorf, Germany |
Beginndatum der Veranstaltung: | 15.06.2015 |
Enddatum der Veranstaltung: | 19.06.2015 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 21.11.2016 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |