Life cycle assessment of welding technologies for thick metal plate welds
- Life Cycle Assessment (LCA) is applied in evaluating environmental impacts of state-of-the-art welding technologies. Manual Metal Arc Welding (MMAW), Laser Arc-Hybrid Welding (LAHW) and two Gas Metal Arc Welding (GMAW) variants are used to join a plate of 20 mm thick structural steel. The LCA results indicate that for 1 m weld seam, MMAW causes the highest environmental impacts in global warming potential (GWP), eutrophication potential (EP), acidification potential (AP), and photochemical ozone creation potential (POCP) among the selected processes, and the LAHW variant performances the least. Filler material and electricity consumptions generally dominate the impacts and reach shares of up to 80% and 61% in the respective impact categories. However, electrode coating consumption in MMAW remarkably contributes impacts on AP and EP, for instance 52% of AP and 76% of EP. Strategies for improvement of the applied welding technologies are discussed.
Autor*innen: | Gunther Sproesser, Y.-J. Chang, Andreas PittnerORCiD, M. Finkbeiner, Michael RethmeierORCiD |
---|---|
Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Journal of cleaner production |
Jahr der Erstveröffentlichung: | 2015 |
Verlag: | Elsevier Science |
Verlagsort: | Amsterdam |
Jahrgang/Band: | 108 |
Ausgabe/Heft: | Part: A |
Erste Seite: | 46 |
Letzte Seite: | 53 |
Freie Schlagwörter: | Arc welding; Laser arc-hybrid welding; Life Cycle Assessment (LCA); Resource efficiency |
DOI: | 10.1016/j.jclepro.2015.06.121 |
ISSN: | 0959-6526 |
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: | 26.11.2015 |