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Optoacoustic Monitoring of Laser Beam Welding
Proceedings of European Meeting on Lasers and Electro-Optics CLEOE-96, 1996To fully exploit the productivity and flexibility of laser beam welding unit, a reliable monitoring is necessary. Different physical phenomena like light emission and temperature are usually observed and evaluated for that purpose [1]. The aim of this paper is to extend the observed phenomenon to sound which is produced during welding and spread into ...
Ladislav Grad, Janez Možina
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2021
Laser welding is a fusion welding process and uses a laser beam of a determined spot size to cause melting of the workpieces and the filler material to form the weld. Laser welding, when it originated had taken over as an advantageous technique over the traditional arc welding methods in high-volume manufacturing industries.
Mukti Chaturvedi, S. Arungalai Vendan
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Laser welding is a fusion welding process and uses a laser beam of a determined spot size to cause melting of the workpieces and the filler material to form the weld. Laser welding, when it originated had taken over as an advantageous technique over the traditional arc welding methods in high-volume manufacturing industries.
Mukti Chaturvedi, S. Arungalai Vendan
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Laser beam welding of thermoplastics
SPIE Proceedings, 2003Current product development showing an ever shrinking physical volume is asking for new, reliable joining technologies. Laser beam technologies conceal innovative solutions to overcome limitations of conventional joining technologies. Laser beam welding of thermoplastics offers several process technical advantages.
Ulrich A. Russek +8 more
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Spatter formation in laser beam welding using laser beam oscillation
Welding in the World, 2014This paper presents an approach towards a better understanding of spatter formation in laser beam welding. Hereunto, experimental investigations and numerical simulation are carried out. For the study, various steels and aluminium alloys were selected to investigate the influences of alloying elements upon spatter formation.
Florian Hugger +4 more
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Temper-Bead Weld by Underwater Laser Beam Welding
Volume 1: Plant Operations, Maintenance, Engineering, Modifications and Life Cycle; Component Reliability and Materials Issues; Next Generation Systems, 2009In repair welding for nuclear reactor vessel, low alloy steels are affected by heat input during welding process. The conventional repair welding for wall steel constructions requires post weld heat treatment (PWHT) to achieve the desired microstructure properties.
Takeshi Fukuda +5 more
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1993
AbstractLaser-beam welding (LBW) uses a moving high-density coherent optical energy source, called laser, as the source of heat. This article discusses the advantages and limitations of LBW and tabulates energy consumption and efficiency of LBW relative to other selected welding processes.
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AbstractLaser-beam welding (LBW) uses a moving high-density coherent optical energy source, called laser, as the source of heat. This article discusses the advantages and limitations of LBW and tabulates energy consumption and efficiency of LBW relative to other selected welding processes.
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S-Polarization Laser Beam Welding
1992The availability of high power lasers with average power levels above 5 kW and high beam quality triggered a number of industrial applications of lasers. Especially the process of deep penetration welding made the use of lasers attractive in applications where low distortion and small heat affected zones are required.
K. Behler, E. Beyer, N. Wolf, O. Welsing
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Electron beam welding, laser beam welding and gas tungsten arc welding of titanium sheet
Materials Science and Engineering: A, 2000Microstructures, properties and technical parameters of welding specimen of 0.5 mm thick sheets of commercial purity titanium (C.P. Ti) have been studied via high vacuum electron beam welding (EBW-HV), CO2 laser beam welding (LBW) and gas tungsten arc welding (TIG), as well as optical microscope (OM) observation and microhardness measuring. The results
Qi Yunlian +3 more
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Laser beam welding aerospace aluminum using fiber lasers
SPIE Proceedings, 2008This work intends to contribute towards the knowledge of AA6013 aluminum alloy weldability, autogenously welded with a high-power fiber laser. The quality and metallurgical characterization of the welds were done considering laser speed and power as process parameters.
Milton S. F. Lima +3 more
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Electron beam welding vs. laser beam welding for air bearing shaft
ICALEO 2005: 24th International Congress on Laser Materials Processing and Laser Microfabrication, 2005Air bearings allow designers to push the envelope on precision and high-speed applications. Unlike contact roller bearings, air bearings utilise thin film pressurised air to provide “zero friction” load bearing interface between surfaces that would otherwise be in contact with each other.
M. Naeem +3 more
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