Béguin, Jean-Denis and Gazagne, Valentin
and Balcaen, Yannick
and Alexis, Joël
and Andrieu, Eric
Laser welding of titanium alloys with an Yb: YAG sisk source.
(2018)
Materials Science Forum, 941. 845-850. ISSN 1662-9752
|
(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 1MB |
Official URL: https://doi.org/10.4028/www.scientific.net/MSF.941.845
Abstract
In this paper, the laser welding of thin titanium sheet in a butt joint configuration are investigated using a continuous Yb: YAG disk source, with high beam quality and a particular fiber configuration, enable to provide a broad range of beam diameters with different intensity distribution. The thermal efficiency of the laser process is discussed as a function of the fiber type. The weldability results for the CP Ti grade 2 and the Ti-6Al-4V titanium alloy are expressed in terms of full penetration, and correct bead geometry (NF L06-395-2000). Full penetration welds are easily achieved with the core fiber, but the outer fiber produces welds with limited geometric defects. Butt joints microstructure consists of an acicular α phase in the fusion zone for CP Ti, and a martensitic α’ phase for the Ti-6Al-4V alloy. Tensile test results confirm a similar or slightly higher joint strength for the full penetration welds, compared with the parent metal.
Item Type: | Article |
---|---|
HAL Id: | hal-02356317 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Other partners > Ecole Nationale Supérieure de Chimie de Montpellier - ENSCM (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) Other partners > Université de Montpellier (FRANCE) |
Laboratory name: | |
Statistics: | download |
Deposited On: | 13 Mar 2019 13:28 |
Repository Staff Only: item control page