Abstract: A machining apparatus for laser machining a workpiece (12) in a machining zone (13) is provided, having a first interface (14) for a machining laser source for generating a machining laser beam (15), an outlet opening (18) for the machining laser beam (15), In an optical system between the first interface (14) and the outlet opening (18), which has at least one laser beam guiding device (22) having at least one movable surface (24) and at least one actuator (26), with which the movable surface (24) is dynamically adjustable, and a cooling device (28) for cooling the at least one actuator (26), wherein the cooling device (28) has at least one primary circuit (30) through which a first cooling fluid can flow without contact with the actuator (26). Furthermore, a set of parts for a machining apparatus for laser machining a workpiece (12) and a method of laser machining a workpiece (12) using such machining apparatus are also provided.

Abstract: The invention relates to a gas guide (11, 11a, 11b, 11c) for a laser cutting head (10) having a nozzle (19), having a central flow axis (S), comprising a base part having a pressure chamber (24) concentrically surrounding the flow axis (S), configured for the reception of a gas flow (20a, 20b, 20c), wherein the base part has at least four gas conduits (26a, 26b, 26c), which extend from the pressure chamber (24) in the direction of the flow axis (S), and wherein the cross-sections of the pressure chamber (24) and the gas conduits (26a, 26b, 26c) are dimensioned such that the gas has a maximum flow rate when it exits the gas conduits.

Abstract: A machining apparatus for laser machining a workpiece (12) in a machining zone (13) is provided, having a first interface (14) for a machining laser source for generating a machining laser beam (15), an outlet opening (18) for the machining laser beam (15), In an optical system between the first interface (14) and the outlet opening (18), which has at least one laser beam guiding device (22) having at least one movable surface (24) and at least one actuator (26), with which the movable surface (24) is dynamically adjustable, and a cooling device (28) for cooling the at least one actuator (26), wherein the cooling device (28) has at least one primary circuit (30) through which a first cooling fluid can flow without contact with the actuator (26). Furthermore, a set of parts for a machining apparatus for laser machining a workpiece (12) and a method of laser machining a workpiece (12) using such machining apparatus are also provided.

Abstract: The invention relates to a gas guide (11, 11a, 11b, 11c) for a laser cutting head (10) having a nozzle (19), having a central flow axis (S), comprising a base part having a pressure chamber (24) concentrically surrounding the flow axis (S), configured for the reception of a gas flow (20a, 20b, 20c), wherein the base part has at least four gas conduits (26a, 26b, 26c), which extend from the pressure chamber (24) in the direction of the flow axis (S), and wherein the cross-sections of the pressure chamber (24) and the gas conduits (26a, 26b, 26c) are dimensioned such that the gas has a maximum flow rate when it exits the gas conduits.