Piott, Michael und Werber, Alexandra und Schleuß, Leander und Ossenbrink, Ralf und Doynov, Nikolay und Michailov, Vesselin G. (2020) Numerical and experimental analysis of heat transfer in resistance spot welding process of aluminum alloy AA5182. International Journal of Advanced Manufacturing Technology (111), Seiten 1671-1682. Springer Nature. doi: 10.1007/s00170-020-06197-7. ISSN 0268-3768.
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Kurzfassung
In this work, a numerical model and experiments are used to investigate heat transfer processes during resistance spot welding process of aluminum. For this purpose, calibrated heat transfer conditions and thermal contact conductance are transferred from a previous work to a coupled thermal-electrical-mechanical finite element model. First, all domains of the numerical model are validated by an experimental study. The experimental setup includes the measurement of current, voltage drops, electrode force, electrode displacement, and temperatures while two sheets of aluminum alloy AA5182 are joined. Computational results show that most of the generated Joule heat (78%) is stored in the electrodes or transferred to cooling water until the end of weld time. Heat transfer by natural convection and thermal radiation is very small and can in general be neglected for complete process. Afterwards, the influence of electrode water-cooling on welding process is investigated numerically. The results indicate that the generation of Joule heat and thermal energy of the sheets during weld time is only slightly affected by electrode water-cooling. As a consequence, water-cooling conditions do not affect nugget formation. In contrast, electrode water-cooling highly influences cooling conditions during hold time.
elib-URL des Eintrags: | https://elib.dlr.de/139738/ | ||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
Titel: | Numerical and experimental analysis of heat transfer in resistance spot welding process of aluminum alloy AA5182 | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 15 Oktober 2020 | ||||||||||||||||||||||||||||
Erschienen in: | International Journal of Advanced Manufacturing Technology | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||
DOI: | 10.1007/s00170-020-06197-7 | ||||||||||||||||||||||||||||
Seitenbereich: | Seiten 1671-1682 | ||||||||||||||||||||||||||||
Verlag: | Springer Nature | ||||||||||||||||||||||||||||
Name der Reihe: | Springer Nature | ||||||||||||||||||||||||||||
ISSN: | 0268-3768 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | Aluminum resistance spot welding , Heat transfer, FE simulation, Electrode water-cooling, Instrumented experiments | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||||||
HGF - Programm: | Energieeffizienz, Materialien und Ressourcen | ||||||||||||||||||||||||||||
HGF - Programmthema: | keine Zuordnung | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | E SP - Energiespeicher | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | E - Dekarbonisierte Industrieprozesse (alt) | ||||||||||||||||||||||||||||
Standort: | Cottbus | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für CO2-arme Industrieprozesse | ||||||||||||||||||||||||||||
Hinterlegt von: | Klinkmüller, Maike | ||||||||||||||||||||||||||||
Hinterlegt am: | 04 Jan 2021 11:06 | ||||||||||||||||||||||||||||
Letzte Änderung: | 19 Feb 2021 13:25 |
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