Laser offset welding of AZ31B magnesium alloy to 316 stainless steelG
Article dans une revue avec comité de lecture
Date
2017Journal
Journal of Materials Processing TechnologyRésumé
In this paper, the feasibility of using a fiber laser to perform a dissimilar metal joining was explored. AZ31B magnesium and 316 stainless steel were autogenously joined in butt configuration. The weldability between different materials is often compromised by a large difference in thermal properties and poor metallurgical compatibility. Thus, the beam was focused onto the top surface of the magnesium plate, at a certain distance from the interfaces (offset), and without using any interlayer or groove preparation. Such a method was called laser offset welding (LOW). Results proved a very good capability. The ultimate tensile strength exceeded the value of 100 MPa, since a resistant and thin layer of hard intermetallic compounds is formed within the fusion zone. The rupture was observed within the magnesium side, far from the centerline. The metallurgy of fusion zone indicated the effectiveness of phases coalescence, without mixing at liquid states. LOW was demonstrated to be a promising technique to join dissimilar metal welds, being capable to produce an effective bonding with good tensile strength.
Fichier(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Article dans une revue avec comité de lectureCASALINO, Giuseppe; MORTELLO, Michelangelo; PEYRE, Patrice (Elsevier, 2015)In this work, a 5754 Al alloy and T40 were joined in butt configuration by focusing a fiber laser onto the titanium side, close to the weld centerline (offset). The keyhole was made entirely of titanium, and the fusion of ...
-
Article dans une revue avec comité de lectureBACCHIN, Patrice; BRUTIN, David; DAVAILLE, Anne; DI GIUSEPPE, Erika; CHEN, Xiao Dong; GERGIANAKIS, Ioannis; GIORGIUTTI-DAUPHINÉ, Frédérique; GOEHRING, Lucas; HALLEZ, Yannick; HEYD, Rodolphe; JEANTET, Romain; LE FLOCH-FOUÉRÉ, Cécile; MEIRELES, Martine; MITTELSTAEDT, Eric; NICLOUX, Céline; PAUCHARD, Ludovic; SABOUNGI, Marie-Louise (EDP Sciences: EPJ, 2018)The drying of complex fluids provides a powerful insight into phenomena that take place on time and length scales not normally accessible. An important feature of complex fluids, colloidal dispersions and polymer solutions ...
-
Article dans une revue avec comité de lectureMORVILLE, Simon; CARIN, Muriel; PEYRE, Patrice; GHARBI, Myriam; CARRON, Denis; LE MASSON, Philippe; FABBRO, Rémy (Laser Institute of America, 2012)Derived from laser cladding, the Direct Laser Metal Deposition (DLMD) process is based upon a laser beam – powder – melt pool interaction, and enables the manufacturing of complex 3D shapes much faster than conventional ...
-
Article dans une revue avec comité de lectureGHARBI, Myriam; PEYRE, Patrice; GORNY, Cyril; CARIN, Muriel; MORVILLE, Simon; LE MASSON, Philippe; CARRON, Denis; FABBRO, Rémy (Elsevier, 2012)The direct metal deposition (DMD) with laser is a free-form metal deposition process for manufacturing dense pieces, which allows generating a prototype or small series of near net-shape structures. One of the most critical ...
-
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 ...