Abstract: A method for oblique laser beam cutting of a workpiece and system for performing the same, in which a supersonic flow of cutting gas discharged from a cutting gas nozzle is orientated at an oblique cutting angle with respect to a surface of a workpiece, and in which the workpiece and the laser beam are moved relative to each other during the oblique laser beam cutting operation. The oblique cutting angle extends along a plane that is perpendicular to a direction of advance. During operation, the position of the laser beam on the workpiece surface is adjusted in such a manner that the laser beam strikes the workpiece surface in a high-pressure region formed within the supersonic flow of the cutting gas.

Abstract: The invention relates to a laser processing nozzle for processing metal sheets. The processing nozzle includes a supply chamber for a processing gas and a laser beam and a mouth region which directly adjoins the supply chamber along the longitudinal axis of the nozzle. The mouth region is narrowed relative to the supply chamber and forms a minimum diameter of the laser processing nozzle. A step is formed between the supply chamber and the mouth region for swirling the processing gas, and an opening region which widens relative to the mouth region adjoins the mouth region along the longitudinal axis of the nozzle.

Abstract: A method for oblique laser beam cutting of a workpiece and system for performing the same, in which a supersonic flow of cutting gas discharged from a cutting gas nozzle is orientated at an oblique cutting angle with respect to a surface of a workpiece, and in which the workpiece and the laser beam are moved relative to each other during the oblique laser beam cutting operation. The oblique cutting angle extends along a plane that is perpendicular to a direction of advance. During operation, the position of the laser beam on the workpiece surface is adjusted in such a manner that the laser beam strikes the workpiece surface in a high-pressure region formed within the supersonic flow of the cutting gas.