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Distortion Analysis in laser Welding of Ultra High Strength Steel
Swerea KIMAB.
KTH, School of Industrial Engineering and Management (ITM), Production Engineering. KTH, Centres, XPRES, Excellence in production research. Volvo Cars Corporation.ORCID iD: 0000-0002-9849-1754
KTH, School of Industrial Engineering and Management (ITM), Production Engineering, Welding Technology. KTH, Centres, XPRES, Excellence in production research. Swerea KIMAB.ORCID iD: 0000-0002-6061-662X
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2014 (English)In: Proc 6th International Swedish Production symposium 2014, 2014Conference paper, Published paper (Refereed)
Abstract [en]

Due to increased demands on reduced weight in automotive industries, the use of ultra high strength steels (UHSS) has increased. When laser welding UHSS ssheets, heating and cooling of the material will cause geometrical distortions and may cause low joint quality. 700 mm long U-beam structures of 1 mm thick boron steel simulating structural pillars in body-in-white constructions have been laser welded along the flanges with different welding speeds to investigate distortions and weld quality. The results show that final distortions appear in the range of 0-8 mm. FE simulation methods have also been presented which generally predict the distribution of welding distortions.

Place, publisher, year, edition, pages
2014.
Keyword [en]
Laser welding, distortion, UHSS, simulation, automotive
National Category
Mechanical Engineering
Research subject
SRA - Production
Identifiers
URN: urn:nbn:se:kth:diva-161933OAI: oai:DiVA.org:kth-161933DiVA: diva2:796623
Conference
The 6th Swedish Production Symposium, Sep 16-18 2014, Gothenburg, Sweden
Note

QC 20150326

Available from: 2015-03-19 Created: 2015-03-19 Last updated: 2015-03-26Bibliographically approved

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Andersson, OscarMelander, Arne

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