LASER MACHINING NOZZLE FOR MACHINING SHEET METAL ; LASER CUTTING MACHINE WITH CORRESPONDING NOZZLE

摘要

The invention relates to a laser processing nozzle (17a) for the machining of metal sheets, in particular for the cutting of stainless steel sheets having a thickness greater than 8 mm, comprising: a feeding space (24) for a machining gas and a laser beam as well as a along the nozzle (23) on the feeding space (24) adjoining, with respect to the feeding space (24) narrowed opening region (25). Between the feeding space (24) and the mouth region (25) is a step (26) for swirling that of said processing gas and formed along the nozzle (23) is connected to the mouth region (25) a relative to the mouth region (25) widening opening portion (28) to.