Modelling the Primary Impact of an Yb:Fibre Laser Beam Profile on the Keyhole Front
2011 (English)In: Physics Procedia, ISSN 1875-3892, E-ISSN 1875-3892, Vol. 12, no 1, 627-637 p.Article in journal (Refereed)
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.
Place, publisher, year, edition, pages
2011. Vol. 12, no 1, 627-637 p.
Research subject Manufacturing Systems Engineering
IdentifiersURN: urn:nbn:se:ltu:diva-35945DOI: 10.1016/j.phpro.2011.03.079Local ID: aae1bbb9-ca76-4d69-9404-2b776b313d94OAI: oai:DiVA.org:ltu-35945DiVA: diva2:1009200
WLT Conference on Lasers in Manufacturing : 23/05/2011 - 26/05/2011
Validerad; 2011; Bibliografisk uppgift: Lasers in Manufacturing 2011 - Proceedings of the Sixth International WLT Conference on Lasers in Manufacturing ; 20110505 (andbra); Konferensartikel i tidskrift2016-09-302016-09-30Bibliographically approved