Modelling the Primary Impact of an Yb:Fibre Laser Beam Profile on the Keyhole Front
2011 (English)Conference paper, Meeting abstract (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, 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)2016-09-302016-09-30Bibliographically approved