Application of the Hybrid Metal Extrusion & Bonding (HYB) Method for Joining of AA6082-T6 Base Material

Abstract:

In the present investigation the new HYB spindle extruder has been used for butt joining of 4 mm thick aluminium plates of the AA6082-T6 type at RT in one pass, employing a 1.6 mm diameter filler wire of matching composition. The test joint produced was subsequently sectioned and subjected to thorough examination in the laboratory, which included visual inspection of the surface quality and bead penetration depth, optical microscopy for visualisation and documentation of the material flow pattern and the microstructure within the joining zone and Vickers hardness testing. It is concluded that strict control of the bead penetration depth is necessary in order to obtain full bond strength. This is because the bead penetration determines the contact pressure between the filler metal and the base metal in the groove during filling.

• Periodical: Materials Science Forum (Volumes 794-796)
• Pages: 339-344
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.794-796.339
• Online since: June 2014
• Authors: Ulf Roar Aakenes*, Øystein Grong, Tor Austigard
• Keywords: Al-Mg-Si Alloy, Cold Bonding, Continuous Extrusion, HYB Process, Joint Properties

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