EINEN LASER MIT MINDESTENS EINER AUF YTTERBIUM BASIERENDEN FASER VERWENDENDES SCHNEIDVERFAHREN, BEI DEM MINDESTENS DIE ENERGIE DER LASERQUELLE, DER DURCHMESSER DES FOKUSSIERTEN STRAHLS UND DER STRAHLQUALITÄTSFAKTOR GESTEUERT WERDEN

摘要

The invention relates to method for cutting a part using a laser beam, involving the use of laser beam generation means comprising at least one ytterbium-based fibre having a wavelength of between 1 and 4μm in order to generate the laser beam. The laser beam is selected to have a power of less than 100 kW, a power density of at least 1 MW/cm2, a focused beam diameter of at least 0.1 mm and a quality factor (BPP) of less than 10 mm·mrad.