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Investigations on laser-welding
IEEE Journal of Quantum Electronics, 1975A welding method has been developed that makes use of fundamental mode laser pulses. These pulses show single-mode relaxation oscillations with a high peak power first spike causing breakdown of the material surface. The laser emission following the first spike can be adapted to the welding requirements and the material properties.
M. Montanarini, J. Steffen
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Surface tension stabilized laser welding (donut laser welding)—A new laser welding technique
Journal of Laser Applications, 2013A new laser welding process is presented which delivers a porosity free, spatter free weld. The process involves a donut shaped melt with a central hole of the same order of magnitude as the material thickness. The laser illuminates only the leading section of this melt. The hole is kept open by the melt surface tension.
Peter Haglund +3 more
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Gases aid laser welding and diode laser welding in particular
PICALO 2004: 1st Pacific International Conference on Laser Materials Processing, Micro, Nano and Ultrafast Fabrication, 2004The use of lasers has become common in the fields of cutting, welding and surface treatment applications. Various different lasers are used for laser welding. CO2 lasers provide high laser powers of up to 10 kW and more, but require a gantry system to position the laser beam precisely.
M. Faerber, W. Danzer
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Laser welding of magnetic materials
Conference on Lasers and Electro-Optics-Europe, 1998Industrial sectors with interest in welding magnetic materials include the aerospace, electrical and defence industries [1]. The effects of CO2 laser welding and high temperatures (i.e. above the Curie temperature) on the magnetism of ferromagnetic materials were investigated. A 1.2 kW MFKP CO2 laser was used to weld the magnetic material at a constant
H.C. Seat, I.A. Watson
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Laser welding of titanium in dentistry
Acta Odontologica Scandinavica, 1988Unalloyed titanium of the quality used for osseointegrated implants by the method of Brånemark is also sometimes used for the metallic part of the prosthetic superstructure placed on the fixtures and for crowns and bridges of conventional type. Forty bars of titanium, 8 of ASTM B 348 grade-1 quality and 32 of ASTM B 348 grade-2 quality, were laser ...
G, Sjögren, M, Andersson, M, Bergman
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Medical device technology, 2002
A laser welding process has been developed that offers the advantages of conventional laser welding without the use of opaque materials or the addition of unwanted colour.
L P, Frieder, Gareth, McGrath
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A laser welding process has been developed that offers the advantages of conventional laser welding without the use of opaque materials or the addition of unwanted colour.
L P, Frieder, Gareth, McGrath
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Naval Engineers Journal, 1981
ABSTRACTTechnological improvements in welding have proceeded at a slow pace usually brought about by incremental advances in techniques or materials. An opportunity is now being afforded the Navy to increase its welding technology by giant steps by utilizing the emerging technology of laser welding.
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ABSTRACTTechnological improvements in welding have proceeded at a slow pace usually brought about by incremental advances in techniques or materials. An opportunity is now being afforded the Navy to increase its welding technology by giant steps by utilizing the emerging technology of laser welding.
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Higher-level laser parameters for weld dimensionsprediction in laser welding
Laser welding is an essential technology for many applications. However, due tothe complex non-linear interactions between parameters and the emergence ofweld defects, there are still many challenges in predicting the physical transfor-mations occuring during welding.Victor HAYOT +3 more
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Laser Welding of Thermoplastics: An Overview on Lasers, Materials, Processes and Quality
Infrared Physics and Technology, 2021Carla I Martins, Maria C Paiva
exaly