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Measurements of fluid flow on keyhole front during laser welding
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.
Luleå University of Technology, Department of Engineering Sciences and Mathematics.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.ORCID iD: 0000-0002-3569-6795
2011 (English)In: Science and technology of welding and joining, ISSN 1362-1718, E-ISSN 1743-2936, Vol. 16, no 7, p. 636-641Article in journal (Refereed) Published
Abstract [en]

This paper presents the results of a high speed video survey of melt flow on the front face of a keyhole created during fibre laser welding. Using fast Fourier transform techniques, quantitative values of fluid flow velocities down the keyhole front have been established. The results have led to a phenomenological understanding of some of the quality problems which arise at excess welding speeds. The downward flow velocity on the keyhole front is found to be generally independent of welding speed, and proportional to laser power

Place, publisher, year, edition, pages
2011. Vol. 16, no 7, p. 636-641
National Category
Manufacturing, Surface and Joining Technology
Research subject
Manufacturing Systems Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-9862DOI: 10.1179/1362171811Y.0000000050Local ID: 8909de63-7f0f-4473-9361-c37306243098OAI: oai:DiVA.org:ltu-9862DiVA: diva2:982800
Note
Validerad; 2011; 20111019 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Eriksson, IngemarPowell, JohnKaplan, Alexander
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