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Metallurgical effects and distortions in laser welding of thin sheet steels with variations in strength
University West, Department of Engineering Science, Research Enviroment Production Technology West. University West, Department of Engineering Science, Research Environment Production Technology West. (PTW)ORCID iD: 0000-0001-8933-6720
Volvo Cars, Torslanda, Sweden.
University West, Department of Engineering Science, Research Enviroment Production Technology West. (PTW)ORCID iD: 0000-0001-8822-2705
University West, Department of Engineering Science, Division of Production Engineering. University West, Department of Engineering Science, Division of Welding Technology. (Welding group, PTW)ORCID iD: 0000-0003-2560-0531
2017 (English)In: Science and technology of welding and joining, ISSN 1362-1718, E-ISSN 1743-2936, Vol. 22, no 7, 573-579 p.Article in journal (Refereed) Published
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. Published by Taylor & Francis on behalf of the Institute.

Place, publisher, year, edition, pages
Taylor and Francis Ltd. , 2017. Vol. 22, no 7, 573-579 p.
Keyword [en]
Distortion (waves); Hardness; Heat affected zone; High strength steel; Laser beam welding; Martensitic steel; Metallurgy; Metals; Sheet metal; Welding; Welds, automotive; Geometrical distortion; Good correlations; Steel grades; Thin sheet; Total energy; Weld metal; Weld widths, Steel metallurgy
National Category
Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-10936DOI: 10.1080/13621718.2016.1275483ISI: 000406522500004Scopus ID: 2-s2.0-85009275116OAI: oai:DiVA.org:hv-10936DiVA: diva2:1136189
Note

Published online: 12 Jan 2017

Available from: 2017-08-25 Created: 2017-08-25 Last updated: 2017-08-25Bibliographically approved

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Fahlström, KarlKarlsson, LeifSvensson, Lars-Erik

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Science and technology of welding and joining
Manufacturing, Surface and Joining Technology

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