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Laser Welding Process: A Review of Keyhole Welding Modelling
University West, Department of Engineering Science, 461 32 Trollhättan.
University West, Department of Engineering Science, 461 32 Trollhättan.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Produkt- och produktionsutveckling.ORCID-id: 0000-0002-3569-6795
2015 (engelsk)Inngår i: Physics Procedia, ISSN 1875-3892, E-ISSN 1875-3892, Vol. 78, s. 182-191Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Laser welding is used in several industrial applications. It can be distinguished between conduction mode and keyhole mode welding, between pulsed wave and cw laser welding and between CO2-lasers with a wavelength of 10 μm and various laser types of about 1 μm wavelength. A deeper understanding of laser welding allows improving weld quality, process control and process efficiency. It requires a complementary combination of precise modelling and experimental investigations. The here presented review focuses on modelling of laser keyhole welding, for both wavelength regimes. First, the fundamentals of the laser welding process and its physics such as beam propagation, keyhole formation and melt pool dynamics are addressed. The main approaches for modeling energy transfer from laser beam to keyhole surface as well as fluid flow in the material are then discussed. The most relevant publications are systematically structured, particularly categorized with regard to the respective physical phenomena addressed. Finally some open questions are underlined.

sted, utgiver, år, opplag, sider
2015. Vol. 78, s. 182-191
HSV kategori
Forskningsprogram
Produktionsutveckling
Identifikatorer
URN: urn:nbn:se:ltu:diva-39514DOI: 10.1016/j.phpro.2015.11.042ISI: 000370876600020Scopus ID: 2-s2.0-84965057063Lokal ID: e4d41e01-241a-4e53-bf0c-3d820c7e3d4dOAI: oai:DiVA.org:ltu-39514DiVA, id: diva2:1013027
Konferanse
Nordic Laser Materials Processing Conference : 25/08/2015 - 27/08/2015
Merknad
Validerad; 2015; Nivå 1; 20151126 (andbra); Konferensartikel i tidskriftTilgjengelig fra: 2016-10-03 Laget: 2016-10-03 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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