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Article Dans Une Revue Science and Technology of Welding and Joining Année : 2008

Steel to aluminium braze-welding by laser process with and Al-12Si filler wire

G. Sierra
  • Fonction : Auteur
P. Peyre
  • Fonction : Auteur
Frederic Deschaux-Beaume
D. Stuart
  • Fonction : Auteur
Gilles Fras
  • Fonction : Auteur
  • PersonId : 891171

Résumé

The joining of DC04 steel to 6016-T4 aluminium alloy is achieved by laser braze-welding using a 4047 (Al-12Si) filler wire and a brazing flux. The dissimilar joining is obtained both by welding the parent 6016 alloy to the 4047 filler wire, producing a continuous bonding without apparent macroscopic flaws, and by reactive wetting of the molten aluminium alloy on the solid steel, resulting in the formation of a thin layer of FeAlSi intermetallic compounds at the steel/bead interface. The linear strength of the assemblies can be as high as 190 N/mm, with a failure generally located in the reaction layer of the steel/bead interface. Last, the strength of the assemblies is shown to increase linearly with the reaction layer width.
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Dates et versions

hal-00562408 , version 1 (03-02-2011)

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Citer

G. Sierra, P. Peyre, Frederic Deschaux-Beaume, D. Stuart, Gilles Fras. Steel to aluminium braze-welding by laser process with and Al-12Si filler wire. Science and Technology of Welding and Joining, 2008, 13, pp.430-437. ⟨10.1179/174329308X341852⟩. ⟨hal-00562408⟩
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