6533b830fe1ef96bd1297054
RESEARCH PRODUCT
Study of magnesium and aluminum alloys absorption coefficient during Nd:YAG laser interaction
Simone MatteïNicolas PierronPierre Sallamandsubject
Materials scienceAlloy[ PHYS.COND.CM-MS ] Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]General Physics and AstronomyLaser02 engineering and technologyengineering.material01 natural scienceslaw.inventionAbsorptionlaw0103 physical sciencesPhysics::Atomic PhysicsAbsorption (electromagnetic radiation)010302 applied physicsMetallurgyLaser beam weldingIntegrating sphereSurfaces and InterfacesGeneral ChemistryNd:YAG021001 nanoscience & nanotechnologyCondensed Matter PhysicsLaserAluminum alloysSurfaces Coatings and FilmsSurfaceIntegrating sphereMagnesium alloysAttenuation coefficientNd:YAG laser[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]engineeringAtomic physics0210 nano-technologyKeyholedescription
International audience; In laser processes, the absorption factor of laser Nd:YAG by metals plays a very important role. In order to model laser welding, we need to know its evolution during the process. The theoretical calculation does not enable the prediction of the absorption factor in the case of a keyhole mode. It is difficult to predict the effect of plasma and recoil pressure on the shape of the keyhole. In this paper, an integrating sphere is used to determine the absorption factor during the laser process, which is carried out on two types of magnesium alloys (WE43 and RZ5) and an aluminum alloy. We obtain the evolution in time of the absorption factor according to different steps of the evolution of the keyhole.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-01-01 |