the present invention relates to a device and a method for editing and / or welding of a rotationssymmetrischen workpiece (20) with a laser beam (10), a comprehensive umlenkeinrichtung (30), which is essentially in a plane perpendicular to the rotationssymmetrieachse of workpiece (20) and a circular to the workpiece (20) around isand in the area between the umlenkeinheit (30) and the workpiece (20), a gas flow (50) is supplied.
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