Experimental investigation of rotational friction welding for EN AW-6082-20MnCr5 joints

verfasst von
Ahmed Dewidar, Alexej Verschinin, Norman Mohnfeld, H Wester, Sebastian Barton, Hans Jürgen Maier, J Uhe
Abstract

Rotary Friction welding is utilised in various industries, particularly for joining dissimilar materials in mass production, due to its advantages such as minimal material waste, low energy consumption, excellent static and dynamic bond strengths and short production times. This study investigates the effects of process parameters, including friction pressure (80 – 119.4 MPa), friction path (5 – 8 mm), forging pressure (175 – 225 MPa) and forging time (5 – 10 s), on the properties of friction-welded joints between EN AW-6082 and 20MnCr5. Experiments were conducted on cylindrical specimens (Ø 40 mm × 100 mm) using a KUKA Genius Plus RS30. Bond strength was measured using local and global tensile tests. In addition, eddy current testing was employed to investigate its potential in the assessment and prediction of the weld quality of dissimilar RFW joints. The results, analysed using analysis of variance (ANOVA), revealed that higher forging pressures significantly improved bond strength. Moreover, higher values of friction pressure slightly improved bond strength, whereas higher values of friction path negatively influenced it, compared to the respective lower values of the same parameter combination. However, their individual effects were less pronounced compared to forging pressure.

Organisationseinheit(en)
Institut für Umformtechnik und Umformmaschinen
Institut für Werkstoffkunde
Zerstörungsfreie Prüfverfahren
Typ
Artikel
Journal
Materials Research Proceedings
Band
54
Seiten
1479-1488
Anzahl der Seiten
10
Publikationsdatum
07.05.2025
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Allgemeine Materialwissenschaften
Ziele für nachhaltige Entwicklung
SDG 7 – Erschwingliche und saubere Energie
Elektronische Version(en)
https://doi.org/10.21741/9781644903599-160 (Zugang: Offen)
 

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