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Experimental study on cold lap formation in tandem gas metal arc welding
Högskolan Väst, Institutionen för ingenjörsvetenskap, Avd för industriell produktion.
2011 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Göteborg: Chalmers , 2011. , s. 87
Serie
Technical report / Department of Materials and Manufacturing Technology, Chalmers University of Technology, ISSN 1652-8891 ; 69/2011
Emneord [en]
GMAW, Cold lap, oxide, Tandem arc welding
HSV kategori
Forskningsprogram
TEKNIK, Produktions- och materialteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-3828OAI: oai:DiVA.org:hv-3828DiVA, id: diva2:452623
Presentation
2011-09-09, Lecture Room MB, Chalmers University of Technology, Göteborg, 10:00 (engelsk)
Opponent
Veileder
Prosjekter
KOST/LOST project and WIQ projectTilgjengelig fra: 2011-10-31 Laget: 2011-10-31 Sist oppdatert: 2020-04-02bibliografisk kontrollert
Delarbeid
1. Characterization of Cold Lap Defects in Tandem Arc MAG Welding
Åpne denne publikasjonen i ny fane eller vindu >>Characterization of Cold Lap Defects in Tandem Arc MAG Welding
2010 (engelsk)Inngår i: Proceedings of the International Conference on Advances in Welding Science & Technology for Construction, Energy & Transportation AWST-2010: Istanbul, Turkey, 12-15 July, 2010, 2010, s. 303-311Konferansepaper, Publicerat paper (Fagfellevurdert)
HSV kategori
Forskningsprogram
TEKNIK, Produktions- och materialteknik
Identifikatorer
urn:nbn:se:hv:diva-3116 (URN)978-605-61419-1-1 (ISBN)
Konferanse
International Conference on Advances in Welding Science & Technology for Construction, Energy & Transportation AWST-2010
Tilgjengelig fra: 2011-01-27 Laget: 2011-01-27 Sist oppdatert: 2016-02-11bibliografisk kontrollert
2. Factors influencing fusion on spatter to the base metal during tandem GMAW welding
Åpne denne publikasjonen i ny fane eller vindu >>Factors influencing fusion on spatter to the base metal during tandem GMAW welding
(engelsk)Inngår i: Artikkel i tidsskrift (Fagfellevurdert) Submitted
HSV kategori
Forskningsprogram
TEKNIK, Produktions- och materialteknik
Identifikatorer
urn:nbn:se:hv:diva-3827 (URN)
Tilgjengelig fra: 2011-10-31 Laget: 2011-10-31 Sist oppdatert: 2020-04-02bibliografisk kontrollert
3. Influence of oxides on cold lap formation in tandem GMAW
Åpne denne publikasjonen i ny fane eller vindu >>Influence of oxides on cold lap formation in tandem GMAW
2012 (engelsk)Inngår i: Science and technology of welding and joining, ISSN 1362-1718, E-ISSN 1743-2936, Vol. 17, nr 8, s. 643-648Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The connection between the formation of cold laps and the presence of Mn‐Si oxides was studied. The underlying purpose is to understand the fundamental mechanisms of cold lap formation and to avoid it. Tandem gas metal arc welding (GMAW) was used to produce welded specimens in two different shielding gases (pure Ar and pure CO2) with base metal S355 MC (EN-10149-2) and wire G3Si1 (EN ISO 14341-A). Cross-sections of welds in the cold lap location were evaluated by light optical microscopy and scanning electron microscopy combined with energy dispersive spectroscopy. The results showed that the Mn‐Si oxides significantly enhanced cold laps formation, especially the overlap type cold lap formation. The Mn‐Si oxides originated from oxidation of the droplets. These oxides transfers to the surface of the weld pool at the weld toe, where they contributed to the formation of the cold laps.

HSV kategori
Forskningsprogram
TEKNIK, Produktions- och materialteknik
Identifikatorer
urn:nbn:se:hv:diva-3826 (URN)10.1179/1362171812Y.0000000057 (DOI)000309661300006 ()2-s2.0-84867507729 (Scopus ID)
Tilgjengelig fra: 2011-10-31 Laget: 2011-10-31 Sist oppdatert: 2020-04-02bibliografisk kontrollert

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