Abstract: In a machining head, a cutting gas, as first gas stream, and a laser beam are directed at a component to be cut through a nozzle. The cutting-gas feed is enclosed by an annular or polygonal split nozzle or by an annular or polygonal arrangement of individual nozzles that are arranged separately from one another. A second gas stream is directed through the annular or polygonal split nozzle or the nozzles of the annular or polygonal arrangement. The pressure of the cutting gas and the pressure of the second gas stream can each be adjusted independently of one another and a pressure of the cutting gas at the outlet opening of the nozzle for the cutting gas is greater than the pressure of the second gas stream but at most three times as great.

Abstract: A device and a method for beam shaping and beam movement during laser material processing with a laser beam source (1) for continuously emitting a laser beam (2), a first optical deflection element (3), a second optical deflection element (4), and an optical focusing element (5) arranged between the second optical deflection element (4) and a workpiece surface (7) to be processed. The second optical deflection element (4) is configured to displace a point of incidence of the laser beam (2) on the workpiece surface (7), and the first optical deflection element (3) is configured to alter a position of a focal plane of the laser beam (2) relative to the workpiece surface (7) by means of a translational movement and/or to change an intensity distribution within a beam cross section of the laser beam.

Abstract: A device and a method for beam shaping and beam movement during laser material processing with a laser beam source (1) for continuously emitting a laser beam (2), a first optical deflection element (3), a second optical deflection element (4), and an optical focusing element (5) arranged between the second optical deflection element (4) and a workpiece surface (7) to be processed. The second optical deflection element (4) is configured to displace a point of incidence of the laser beam (2) on the workpiece surface (7), and the first optical deflection element (3) is configured to alter a position of a focal plane of the laser beam (2) relative to the workpiece surface (7) by means of a translational movement and/or to change an intensity distribution within a beam cross section of the laser beam.