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HYBRIDIZATION OF LASER WELDING
Transport engineering, 2022The paper objective is to study a hybrid welding process based on the combination of two methods: laser and plasma ones. The combination of two different types of welding is a promising way to detect and then eliminate the defects of each of them.
Alekcandr Gorbunov +3 more
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Review of Laser Hybrid Welding
Journal of Laser Applications, 2005In this article, an overview of the hybrid welding process is given. After a short historic overview, a review of the fundamental phenomenon taking place when a laser (CO2 or Nd:YAG) interacts in the same molten pool as a more conventional source of energy, e.g. tungsten in-active gas, plasma, or metal inactive gas/metal active gas. This is followed by
Claus Bagger
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Welding phenomena and weld penetration during laser or hybrid welding
PICALO 2010: 4th Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication, 2010Laser and hybrid welding phenomena for the production of sound and deep welds are described from the observation results of plume behavior, plume-laser interaction, keyhole behavior and melt flows on the surface and inside the molten pool through high speed video cameras and X-ray transmission imaging system.
Seiji Katayama +2 more
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ICALEO 2015: 34th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing, 2015
The welding of steel with large plate thicknesses gains more and more in importance for the structural steelwork engineering (e.g. pipe- or crane building). Nowadays those welding tasks are performed by a time-consuming conventionally submerged-arc welding process.
Uwe Reisgen +3 more
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The welding of steel with large plate thicknesses gains more and more in importance for the structural steelwork engineering (e.g. pipe- or crane building). Nowadays those welding tasks are performed by a time-consuming conventionally submerged-arc welding process.
Uwe Reisgen +3 more
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Hybrid laser welding techniques for enhanced welding efficiency
ICALEO '96: Proceedings of the Laser Materials Processing Conference, 1996One of the remarkable characteristics of the laser beam welding process is its thin deep welding seam. This thin seam is produced as a result of the high welding speed and the low heat input, leading to a low distortion. However, the overall electrical efficiency of a CO2-laser is in the range of 5-7% and the efficiency of a Nd:YAG-laser is only ...
E. Beyer, B. Brenner, R. Poprawe
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Hybrid welding technologies and welded joints
Welding International, 2013Hybrid welding technologies (e.g. laser-arc, laser-plasma, light laser, submerged laser-arc and permanent joints) and their special features and applications are described.
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Modeling of Weld Beads for Laser-GMA Hybrid Welding
Key Engineering Materials, 2007For laser-GMA hybrid welds, the relationship between the process parameters and bead shapes was investigated by using the experimental design and the non-linear regression. The weld beads were fitted by two quadratic functions. By the statistical analysis, the primary bead was mainly affected by GMA welding parameters and the root bead was mainly by ...
Cheol Hee Kim +3 more
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Bifocal hybrid laser welding - Fillet welds of aluminium
ICALEO 2011: 30th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing, 2011Shortage of resources demands a consequent lightweight design with aluminum. Process stability and a high seam quality in welding processes of this material are difficult to achieve especially for hard to weld materials like EN AW-6060. Bifocal hybrid laser welding (BHLW) demonstrates how this material can be welded reliably without defects in a butt ...
M. R. Kronthaler +2 more
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Weld microstructure and shape of laser–arc hybrid welding
Science and Technology of Welding and Joining, 2008A series of CO2 laser–metal inert gas arc hybrid welding experiment was carried out to investigate the effects of laser/arc energy ratio and groove parameters on the shape and microstructure of hybrid weld. The results showed that increasing arc current and groove cross-section area can reduce dimension difference of laser zone and arc zone by ...
M. Gao, X. Y. Zeng, Q. W. Hu, J. Yan
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Laser Welding and Hybrid Welding of Aluminium Alloys
2010Laser welding of aluminium alloys was performed with high power YAG, fiber or disk laser. Interaction between laser and plume, laser absorption, welding phenomena and weldability were investigated by using such lasers. The absorption of a focused fiber laser in aluminum alloy was found to be higher at high powers and low welding speeds than that in ...
Katayama Seiji +2 more
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