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Influence from weld position on fillet weld quality
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.ORCID iD: 0000-0003-4180-4710
2009 (English)In: Welding in the World, ISSN 0043-2288, Vol. 55, 137-142 p.Article in journal (Refereed) Published
Abstract [en]

In this paper a research study on weld quality of fillet welds is presented. It has been carried out as a part of a Swedish Technology Platform for lightweight welded structures (LOST), where some of the work packages within the project intend to connect the design and analysis to production and weld quality. One of the results from the Nordic project LOST is a new weld quality system from VOLVO, which has a scientific background, is open for public use and focus on features important for fatigue in welded joints. In this study the emphasis is on a couple of features within the new weld quality system: weldtoe radius and the possible existence of weld defects such as cold laps. A number of samples, manufactured as cruciform joints, were welded in three different weldingpositions and investigated regarding local weld geometry and fatigue resistance. Due to gravity the radius in the transition area of the weld is assumed to be affected. The resulting radii were measured and followed up by fatigue tests in pulsating constant amplitude tensile loading. The results show that the weld position has a significant effect on the quality and the fatigue resistance of fillet welds and that it may be the difference between normal quality and high quality welds.

Place, publisher, year, edition, pages
2009. Vol. 55, 137-142 p.
Keyword [en]
Cold laps, Constant amplitude, Cruciform joints, Design and analysis, Fatigue resistance, Fatigue tests, Fillet welds, High quality welds, Number of samples, Research studies, Technology platforms, Tensile loading, Weld defects, Weld geometry, Weld position, Weld quality, Weld toe, Welded joints, Welded structures, Welding position, Work packages
National Category
Applied Mechanics
URN: urn:nbn:se:kth:diva-61515OAI: diva2:479303
QC 20120124Available from: 2012-01-17 Created: 2012-01-17 Last updated: 2012-01-24Bibliographically approved

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Barsoum, Zuheir
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