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Modelling the Primary Impact of an Yb:Fibre Laser Beam Profile on the Keyhole Front
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Produkt- och produktionsutveckling.ORCID-id: 0000-0002-3569-6795
2011 (engelsk)Inngår i: Physics Procedia, ISSN 1875-3892, E-ISSN 1875-3892, Vol. 12, nr 1, s. 627-637Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

During laser materials processing the direct interaction between the laser beam and the processing zone essentially determines the process. A self-regulating processing front develops. A simplified mathematical model was applied to describe this first order mechanism. In particular, a high power Yb:fibre laser beam was characterized and modelled. The dependence of the keyhole shape on different beam models was studied. While a top-hat beam would cause a very different interaction, the impact from the more accurate beam model hardly differed from a Gaussian beam, as can be explained by interaction solely with selected peripheral domains of the beam.

sted, utgiver, år, opplag, sider
2011. Vol. 12, nr 1, s. 627-637
HSV kategori
Forskningsprogram
Produktionsutveckling
Identifikatorer
URN: urn:nbn:se:ltu:diva-35945DOI: 10.1016/j.phpro.2011.03.079ISI: 000298054100077Scopus ID: 2-s2.0-79959441790Lokal ID: aae1bbb9-ca76-4d69-9404-2b776b313d94OAI: oai:DiVA.org:ltu-35945DiVA, id: diva2:1009200
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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