Generation and characterization of T40/A5754 interfaces with lasersPatrice
Article dans une revue avec comité de lecture
Author
Date
2014Journal
Journal of Materials Processing TechnologyAbstract
Laser-induced reactive wetting and brazing of T40 titanium with A5754 aluminum alloy with 1.5 mm thickness was carried out in lap-joint configuration, with or without the use of Al5Si filler wire. A 2.4 mm diameter laser spot was positioned on the aluminum side to provoke spreading and wetting of the lower titanium sheet, with relatively low scanning speeds (0.1–0.6 m/min). Process conditions did not play a very significant role on mechanical strengths, which were shown to reach 250–300 N/mm on a large range of laser power and scanning speeds. In all cases considered, the fracture during tensile testing occurred next to the TiAl3 interface, but in the aluminum fusion zone. The interfacial resistance was then evaluated with the LASAT bond strength tester, based upon the generation and propagation of laser-induced shock waves. A 0.68 GPa uniaxial bond strength was estimated for the T40/A5754 interface under dynamic loading conditions.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lecturePEYRE, Patrice; BERTHE, Laurent; POUZET, Sébastien; SALLAMAND, Pierre; TOMASHCHUK, Iryna; DAL, Morgan (Elsevier, 2014)Laser-induced reactive wetting and brazing of T40 titanium with A5754 aluminum alloy with 1.5 mm thickness was carried out in lap-joint configuration, with or without the use of Al5Si filler wire. A 2.4 mm diameter laser ...
-
Article dans une revue avec comité de lecturePEYRE, Patrice; POUZET, Sébastien; CASTELNAU, Olivier; DAL, Morgan (Laser Institute of America, 2017)The laser metal deposition (LMD) laser technique is a free-form metal deposition process, which allows generating near net-shape structures through the interaction of a powder stream and a laser beam. A simplified numerical ...
-
Article dans une revue avec comité de lectureGUNENTHIRAM, Valérie; PEYRE, Patrice; COSTE, Frédéric; FABBRO, Rémy; DAL, Morgan; SCHNEIDER, Matthieu (Laser Institute of America, 2017)The laser powder bed fusion (LPBF) or powder-bed additive layer manufacturing process is now recognized as a high-potential manufacturing process for complex metallic parts. However, many technical issues are still to ...
-
Article dans une revue sans comité de lectureGUNENTHIRAM, V; PEYRE, Patrice; SCHNEIDER, Matthieu; COSTE, Frédéric; FABBRO, Rémy; DAL, Morgan; KOUTIRI, Imade (Elsevier, 2018)The experimental analysis of spatter formation was carried out on an instrumented SLM set-up allowing the quantification of spatter ejections and possible correlation with melt-pool behavior. Considering nearly similar SLM ...
-
Article dans une revue avec comité de lectureFABBRO, Rémy; PEYRE, Patrice; COSTE, Frédéric; GUNENTHIRAM, V; DAL, Morgan; SCHNEIDER, Matthieu (Laser Institute of America, 2018)The authors propose an analysis of the effect of various operating parameters on the keyhole depth during laser welding. The authors have developed a model that uses the analysis of the thermal field obtained in 2D geometry, ...