Why narrow kerf width of laser cutting machine

Along with the relative linear moving beam and laser cutting machine, and make continuous forming holes cutting seam width is very narrow, trimming heat effect is very small, almost no distortion. Steel cutting when using oxygen as auxiliary gas exothermic chemical reactions and molten metal oxide materials, at the same time help to blow away the slag in the slot. Auxiliary gas entering the nozzle cooling focusing lens, can prevent dust from entering the lens holder in pollution lens and cause the lens to overheat.