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  • Eriksson, Ingemar, et al. (author)
  • New high-speed photography technique for observation of fluid flow in laser welding
  • 2010
  • In: Optical Engineering. - : SPIE-Intl Soc Optical Eng. - 0091-3286 .- 1560-2303. ; 49:10
  • Journal article (peer-reviewed)abstract
    • Recent developments in digital high-speed photography allow us to directly observe the surface topology and flow conditions of the melt surface inside a laser evaporated capillary. Such capillaries (known as keyholes) are a central feature of deep penetration laser welding. For the first time, it can be confirmed that the liquid capillary surface has a rippled, complex topology, indicative of subsurface turbulent flow. Manipulation of the raw data also provides quantitative measurements of the vertical fluid flow from the top to the bottom of the keyhole.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Kaplan, Alexander (1)
Powell, John (1)
Gren, Per (1)
Eriksson, Ingemar (1)
University
Luleå University of Technology (1)
Language
English (1)
Research subject (UKÄ/SCB)
Engineering and Technology (1)
Year
2010 (1)

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