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Metallurgical effects and distortions in laser welding of thin sheet steels with variations in strength
KTH, Skolan för industriell teknik och management (ITM), Industriell produktion, Svetsteknologi. KTH, Centra, XPRES, Excellence in production research.ORCID-id: 0000-0002-9849-1754
2017 (engelsk)Inngår i: Science and technology of welding and joining, ISSN 1362-1718, E-ISSN 1743-2936, Vol. 22, nr 7, s. 573-579Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
TAYLOR & FRANCIS LTD , 2017. Vol. 22, nr 7, s. 573-579
Emneord [en]
Laser welding, high strength steel, distortion, metallurgy, hardness, automotive
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Identifikatorer
URN: urn:nbn:se:kth:diva-212353DOI: 10.1080/13621718.2016.1275483ISI: 000406522500004Scopus ID: 2-s2.0-85009275116OAI: oai:DiVA.org:kth-212353DiVA, id: diva2:1134754
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QC 20170821

Tilgjengelig fra: 2017-08-21 Laget: 2017-08-21 Sist oppdatert: 2017-08-21bibliografisk kontrollert

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