Abstract
Laser MIG hybrid welding was recently suggested as a feasible process for joining of aluminium to steel for both structural as well as tailored blank applications. To promote an understanding of the process and the effect of process parameters on joint properties, laser MIG hybrid welding experiments were performed to join aluminium alloy AA6016 to DC05 zinc-coated steel sheets, in the thickness range of 1 mm, in a butt joint configuration. Among the process parameters varied were laser power, MIG arc power, wire feed rate, welding speed and arc position relative to the abutting edges. By metallographic cross-sections and tensile tests, the effect of these process parameters on joint properties such as wetting length, intermetallic phase layer thickness and tensile strength could be elucidated. Based on these results, a process parameter envelope resulting in adequate and reproducible joint properties (sound weld bead, sufficient and regular wetting, thin intermetallic phase layer, tensile strength exceeding 180 MPa) was established. Within this parameter envelope, corrosion behaviour was rated not critical, and forming behaviour showed promising results.
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Thomy C., Wirth A., Kreimeyer M., Wagner F. and Vollertsen F.: Joining of dissimilar materials — new perspectives for lightweight design in the transportation industries, Proceedings of the IIW International Conference Welding & Materials, Dubrovnik & Cavtat, July 01–08, 2007, pp. 311–326.
Sauthoff G.: Intermetallics, VCH Verlagsgesellschaft, Weinheim, 1995.
Radscheit C.: Laserstrahlfügen von Aluminium mit Stahl, Laser joining of aluminium to steel, BIAS Verlag, Bremen, 1997 (in German).
Achar D.R.G., Ruge J. and Sundaresan S.: Verbinden von Aluminium mit Stahl, besonders durch Schweißen, Joining of aluminium to steel, especially by welding, Aluminium, 1980, vol. 56, no. 2, pp. 147–293 (in German).
Bruckner J., Himmelbauer K. and Hackl H.: Der CMT-Prozess und seine Möglichkeiten, im Speziellen das Fügen von Stahl mit Aluminium, The CMT process and its prospects, in particular the joining of steel to aluminium, DVS-Berichte 231, DVS-Verlag, Düsseldorf, 2004, pp. 201–204 (in German).
Lorenz H.: ColdArc — der kalte Lichtbogen — Neuartige Technologie macht Unmögliches möglich ColdArc, The cold arc — Novel technology makes the impossible possible, iStahl, 2005, vol. 1, no. 34 (in German).
Saida K., Song W. and Nishimoto K.: Laser brazing of aluminium alloy to steels with aluminium filler metals, DVS-Berichte 231, DVS-Verlag, Düsseldorf, 2004, pp. 232–237.
Bergmann H.W., Waldmann H., Guyenot M., Haldenwanger H.G. and Korte M.: Untersuchungsergebnisse zum Laserschweißen von Aluminium auf Stahl für Außenhautanwendungen, Results of an investigation into laser beam welding of aluminium to steel for application in the car body shell, Proceedings European Automotive Laser Application, Bad Nauheim, Automotive Circle International, Bad Nauheim, 2000 (in German).
Mathieu A.: Assembly of steel/aluminium by laser beam, Proceedings of the 23rd International Congress on Applications of Lasers and Electro-Optics ICALEO, 2004, CD-Rom.
Sepold G.: Potentiale laser gefügter Mischver bindungen, Potentials of laser joined dissimilar joints, Proceedings of the 7th International “Aachener Schweißtechnik Kolloquium”, Shaker-Verlag, Aachen, 2001, pp. 159–170 (in German).
Kreimeyer E and Vollertsen F.: Gap tolerant joining of aluminum with steel sheets using the hybrid technique, Proceedings of the 25th International Congress on Applications of Lasers and Electro-Optics ICALEO, 2006, pp. 947-952.
Schilf M., Wischhusen B.-M., Thomy C., Vollertsen F. and Metschkow B.: Ansätze zum Laserstrahlfügen für Aluminium-Stahl-Verbindungen im Schiffbau, Approaches towards laserjoining of aluminium-steel joints in shipbuilding, DVS-Berichte 244, DVS-Verlag, Düsseldorf, 2007, pp. 286–290 (in German).
Thomy C., Wirth A., Kreimeyer M., Wagner F. and Vollertsen F.: Laser-MIG-Hybridfügen von Aluminium-Stahl Leichtbaustrukturen, Laser MIG hybrid welding of aluminium to steel, Laser Technik Journal, 2007, no. 4, pp. 36-40 (in German).
Thomy C., Wagner F., Vollertsen F. and Metschkow B.: Lasers in the shipyard — Laserjoining of aluminum to steel for modern yacht construction, Industrial Laser Solutions, 2007, vol. 11, pp. 9–13.
Thomy C., Walther R. and Vollertsen F.: New developments when thermally joining hybrid materials in the automotive industry, Proceedings of the 11th German and 8th European Automotive Conference “Joining in Automotive Engineering”, Apr. 24–25, 2008, Automotive Circle International, Bad Nauheim, CD-ROM.
Wirth A., Kreimeyer M., Gnauk J., Thomy C. and Vollertsen F.: Analyses on the phase seam of a laser-MIG joined aluminum-steel sample, Proceedings of the 4th International WLT-Conference on Lasers in Manufacturing 2007, AT-Fachverlag, Stuttgart, 2007, pp. 111–115.
Wirth A., Thomy C., Wagner E and Vollertsen F.: Thermal joining of aluminium to other metals — processes, properties and applications, Proceedings of the 10th International Conference on Joints in Aluminium (INALCO 2007), Oct. 24–26, 2007, Osaka, Japan, pp. 125–130.
Güngör Ö.E. and Gerritsen C.: Effect of filler wire composition and metallic coating on the joint performance of aluminium/steel braze-welds, Welding and Cutting, 2008, vol. 7, no. 5, pp. 303–312.
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Thomy, C., Vollertsen, F. Laser-Mig Hybrid Welding Of Aluminium To Steel — Effect Of Process Parameters On Joint Properties. Weld World 56, 124–132 (2012). https://doi.org/10.1007/BF03321356
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DOI: https://doi.org/10.1007/BF03321356