| 2003 №10 (27) | 2003 №10 (29) |
The Paton Welding Journal, 2003, #10-11, 180-182 pages
Arc joining of steel with aluminium
J. Bruckner
Fronius International GmbH, Wels, AustriaAbstract
Latest investigations showed that joining of aluminium with steel would improve the characteristics of components used in industrial applications. Especially in the automotive industry joining of these two materials would minimize energy consumption. Until now mechanical joining of these two materials (clinching, screwing, etc.) was mostly done to attach or band them. Thermal joining is strongly restricted due to the formation of intermetallic phases. These phases are very brittle and therefore deteriorate the mechanical properties of such joints. Another attempt to join steel with aluminium is the use of laser systems combined with pressing devices. This paper describes a modified GMAW system to join Zn-coated steel with aluminium alloys of type 6000 (AlMgSi) and, with some restrictions, even with aluminium alloys of type 5000 (AIMg).
Keywords: arc welding, steel, aluminium, strength properties, dissimilar joint
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