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Mechanisms forming undercuts during laser hybrid arc welding
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Produkt- och produktionsutveckling.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik.ORCID-id: 0000-0003-4265-1541
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik.ORCID-id: 0000-0002-3569-6795
2011 (engelsk)Inngår i: Physics Procedia, ISSN 1875-3892, E-ISSN 1875-3892, Vol. 12, nr 1, s. 201-207Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

That the final quality of a welded joint, using a laser hybrid arc process, is sensitive not only to the geometrical joint conditions, but also to the content of elements in the surface itself, is already known. However the description of the mechanisms forming undercut defects is still vague. In the following study two kinds of undercuts were identified. It is shown how the mill scales affects the melt motion and what mechanisms actuate the creation of the defects. The conclusion that surface oxides affect the severity of weld undercuts is straight forward but here also the mechanism is explained. Keywords: laser; hybrid; welding; mill scale; oxides; defects; undercut

sted, utgiver, år, opplag, sider
2011. Vol. 12, nr 1, s. 201-207
HSV kategori
Forskningsprogram
Produktionsutveckling
Identifikatorer
URN: urn:nbn:se:ltu:diva-31549DOI: 10.1016/j.phpro.2011.03.026ISI: 000298054100025Scopus ID: 2-s2.0-79959428668Lokal ID: 5c5c549a-c578-4e66-bba6-d5ffc4385840OAI: oai:DiVA.org:ltu-31549DiVA, id: diva2:1004783
Konferanse
WLT Conference on Lasers in Manufacturing : 23/05/2011 - 26/05/2011
Merknad

Validerad;2011;20110505 (andbra);Konferensartikel i tidskrift;Bibliografisk uppgift: Lasers in Manufacturing 2011 - Proceedings of the Sixth International WLT Conference on Lasers in Manufacturing.

Tilgjengelig fra: 2016-09-30 Laget: 2016-09-30 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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Norman, PeterKarlsson, JanKaplan, Alexander

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