Off-Set and Focus Effects on Grade 5 Titanium to 6061 Aluminum Alloy Fiber Laser Weld.

Autor: Casalino G; Department of Mechanics Management and Mathematics (DMMM), Politecnico di Bari, Viale Japigia, 182, 70126 Bari, Italy. giuseppe.casalino@poliba.it., D'Ostuni S; Department of Engineering for Innovation, University of Lecce, Via per Monteroni, 73100 Lecce, Italy. sonia.dostuni@unisalento.it., Guglielmi P; Department of Mechanics Management and Mathematics (DMMM), Politecnico di Bari, Viale Japigia, 182, 70126 Bari, Italy. pasquale.guglielmi@poliba.it., Leo P; Department of Engineering for Innovation, University of Lecce, Via per Monteroni, 73100 Lecce, Italy. paola.leo@unisalento.it., Palumbo G; Department of Mechanics Management and Mathematics (DMMM), Politecnico di Bari, Viale Japigia, 182, 70126 Bari, Italy. gianfranco.pAlumbo@poliba.it., Piccininni A; Department of Mechanics Management and Mathematics (DMMM), Politecnico di Bari, Viale Japigia, 182, 70126 Bari, Italy. antonio.piccininni@poliba.it.
Jazyk: angličtina
Zdroj: Materials (Basel, Switzerland) [Materials (Basel)] 2018 Nov 21; Vol. 11 (11). Date of Electronic Publication: 2018 Nov 21.
DOI: 10.3390/ma11112337
Abstrakt: Joining dissimilar metal alloys together has become a major issue in the welding industry since the rapid development of innovative and performing multi-materials products. In case, titanium and Aluminum alloys can be laser-welded using a placement of the laser beam aside the weld centerline, which is called off-set. The fused zone is deep and narrow and the reaction between titanium and Aluminum is limited to a thin interlayer, which improves mechanical properties. In this paper, the effect of focus and off-set distance of the laser beam on the weldability of grade 5 titanium to 6061 Aluminum alloy dissimilar butt weld are presented. The interlayer thickness was correlated to the process parameters and tensile behavior of the weld. The map of deformation showed different deformations of the two weld sides. The data coming from the metallurgical and mechanical characterization of the weld were analyzed to figure out the best off-set and focus combination in the range studied.
Databáze: MEDLINE
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