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Metallurgical effects and distortions in laser welding of thin sheet steels with variations in strength
RISE - Research Institutes of Sweden, Swerea, Swerea KIMAB.
Volvo Cars, Gothenburg, Swden.
Högskolan Väst, Trollhättan, Sweden.
Högskolan Väst, Trollhättan, Sweden.
2017 (English)In: Science and technology of welding and joining, ISSN 1362-1718, E-ISSN 1743-2936Article in journal (Refereed) In press
Abstract [en]

Geometrical distortions occur while welding, but the understanding of how and why they occur and how to control them is limited. The relation between the weld width, weld metal volume, total energy input, width of hard zone and distortions when laser welding three different thin sheet steels with varying strength has therefore been studied. Weld metal volume and total energy input show a good correlation with distortion for one steel at a time. The best correlation with the when including all three steel grades was the width of the hard zone composed of weld metal and the martensitic area in the heat affected zone. © 2017 Institute of Materials, Minerals and Mining.

Place, publisher, year, edition, pages
2017.
Keyword [en]
automotive, distortion, hardness, high strength steel, Laser welding, metallurgy, Distortion (waves), Heat affected zone, Laser beam welding, Martensitic steel, Metals, Sheet metal, Welding, Welds, Geometrical distortion, Good correlations, Steel grades, Thin sheet, Total energy, Weld metal, Weld widths, Steel metallurgy
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-29365DOI: 10.1080/13621718.2016.1275483ScopusID: 2-s2.0-85009275116OAI: oai:DiVA.org:ri-29365DiVA: diva2:1093774
Available from: 2017-05-08 Created: 2017-05-08 Last updated: 2017-05-08Bibliographically approved

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