Influence of the weld pool geometry on solidification cracking in partial penetration high power laser beam welding
- Solidification cracking is still a serious problem in laser beam welding, especially in the welding of thick-walled plates. The influence of weld pool geometry on solidification cracking in partial penetration welding of thick plates is investigated within scope of this study. Therefore, a specific experimental setup of steel and quartz glass in butt configuration and on the side with high-speed camera were used to record the weld pool shape. In addition, the influence of laser inclination angle on the weld pool geometry and on solidification crack formation was investigated. The results show a bulge in the weld pool root, which is separated from an upper region by a necking region. This leads to a case where there are three different longitudinal region lengths with different solidification zones. This temporal sequence of solidification strongly promotes the formation of solidification cracks in the weld root.
Autor*innen: | Nasim Bakir |
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Koautor*innen: | Ömer Üstündag, Andrey Gumenyuk, Michael Rethmeier |
Dokumenttyp: | Vortrag |
Veröffentlichungsform: | Präsentation |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2022 |
Organisationseinheit der BAM: | 9 Komponentensicherheit |
9 Komponentensicherheit / 9.3 Schweißtechnische Fertigungsverfahren | |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Freie Schlagwörter: | Laser beam welding; Solidification craking; Weld pool shape |
Themenfelder/Aktivitätsfelder der BAM: | Material |
Veranstaltung: | LANE 2022: 12th CIRP Conference on Photonic Technologies |
Veranstaltungsort: | Fürth, Germany |
Beginndatum der Veranstaltung: | 04.09.2022 |
Enddatum der Veranstaltung: | 08.09.2022 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 25.11.2022 |
Referierte Publikation: | Nein |
Eingeladener Vortrag: | Nein |