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Prediction of penetration in one-sided fillet welds by in-process joint gap monitoring: an experimental study
University West, Department of Engineering Science, Division of Production System. (PTW)ORCID iD: 0000-0001-5734-294X
Volvo Construction Equipment, Arvika, Sweden.
2017 (English)In: Welding in the World, ISSN 0043-2288, E-ISSN 1878-6669, Vol. 61, no 3, 529-537 p.Article in journal (Refereed) Published
Abstract [en]

The challenge to predict variations in penetration depth in one-sided fillet welds during robotized gas metal arc welding has been addressed by a pilot investigation of technical possibilities and limitations. The main cause for the variation in penetration depth is considered to be variation in joint gap size. Special attention has been paid in order to adopt the experimental conditions to conform to industrial welding conditions. The employed method uses in-process monitoring of joint gap size together with an empirical model relating penetration depth to gap size in order to predict this depth. The gap size estimates are based on image information from two cameras, one visual and one infrared. The results, that are evaluated off-line, confirm the development of a real-time method providing technical solutions that are industrially tractable. The results also pinpoint areas of further improvements towards increased robustness and reduced estimation uncertainties.

Place, publisher, year, edition, pages
Springer, 2017. Vol. 61, no 3, 529-537 p.
Keyword [en]
MAG welding, fillet welds, monitoring systems, penetration, prediction
National Category
Manufacturing, Surface and Joining Technology
Research subject
Production Technology; ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-10807DOI: 10.1007/s40194-017-0448-7ISI: 000405136300011Scopus ID: 2-s2.0-85016051240OAI: oai:DiVA.org:hv-10807DiVA: diva2:1081834
Available from: 2017-03-15 Created: 2017-03-15 Last updated: 2017-12-11Bibliographically approved

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Sikström, Fredrik

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