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An analytical therm...
An analytical thermodynamic model of laser welding
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- Lampa, Conny (author)
- Luleå tekniska universitet
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- Kaplan, Alexander (author)
- Department of Laser Technology Vienna University of Technology, Vienna, Austria
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- Powell, John (author)
- Luleå tekniska universitet,Institutionen för teknikvetenskap och matematik,Laser Expertise Ltd, Nottingham, UK
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- Magnusson, Claes (author)
- Luleå tekniska universitet
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(creator_code:org_t)
- 1999-01-01
- 1997
- English.
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In: Journal of Physics D. - : IOP Publishing. - 0022-3727 .- 1361-6463. ; 30:9, s. 1293-1299
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- An earlier model of deep-penetration laser welding has been simplified in order to provide a useful model of process analysis. This work involves the modelling of the various energy-absorption mechanisms which determine the keyhole shape and thus the dimensions of the melt pool. The penetration depth and weld width (top and bottom) predicted by the model are shown to be in close agreement with experimental results. The widening of the top of the weld seam as a result of Marangoni flow is accurately modelled by introducing an artificially enhanced value for the workpiece's thermal conductivity towards the top of the weld. The model allows analysis of the dependence of the weld profile on the process parameters.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Keyword
- Produktionsutveckling
- Manufacturing Systems Engineering
Publication and Content Type
- ref (subject category)
- art (subject category)
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