6533b7d7fe1ef96bd1269079
RESEARCH PRODUCT
Laser-assisted narrow gap arc welding of an 18MND5 steel thick plate
Rodolphe BolotAlexandre MathieuIryna TomashchukEugen CicalaIuliia Tkachenkosubject
0209 industrial biotechnologyMaterials sciencebusiness.industryPhysics::Optics02 engineering and technologyWeldingPlasma010501 environmental sciencesLaser assisted01 natural scienceslaw.inventionArc (geometry)Electric arc[SPI]Engineering Sciences [physics]020901 industrial engineering & automationOpticslawNarrow gapPhysics::Accelerator PhysicsGeneral Earth and Planetary SciencesArc weldingbusiness0105 earth and related environmental sciencesGeneral Environmental ScienceDiodedescription
Abstract Narrow gap arc welding is a common solution for the welding of thick structures. In this study, a defocused laser beam is used to pre-melt the narrow gap walls in front of an arc-welding bath. Such a welding configuration can be referred to a hybrid welding configuration. In the present work, a particular attention is given to evaluation of the interaction between an arc plasma and a defocused laser beam. High-speed imaging of the metal transfer through arc plasma is achieved thanks to a diode laser illumination system. Electrical arc parameters are logged, synchronously, in order to perform a correlation analysis and to make a diagnosis of the interaction level between laser beam and arc plasma.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-12-31 | Procedia CIRP |