Laser processing head for laser-wire build-up welding

A laser processing head for laser wire build-up welding, comprising:

• a housing configured to allow a laser beam to pass through;
• a pyramid-shaped element comprising at least three reflecting surfaces which are aligned at equal angular distances from each other, so that the laser beam is directed on the at least three reflecting surfaces to split into respective partial beams;
• an optics carrier element comprising reflecting surfaces arranged radially on an outside of the optics carrier element, wherein the reflecting surfaces of the optics carrier element are aligned such that the respective partial beams reflected at the reflecting surfaces they to intersect in a common plane;
• an internal wire feed is arranged in the housing, the internal wire feed having an outlet nozzle, arranged in the direction of a workpiece to be processed;
• and
• a wire-shaped materials fusible by using the energy of the respective partial beams incident on the wire-shaped material, the outlet nozzle is arranged in a feed movement of the wire-shaped material in front of the common plane in which reflected respective partial beams intersect;
• wherein the pyramid-shaped element is formed on the optics carrier element;
• wherein the optics carrier element is arranged and fixable in an optical adjustment element in such a way that the optics carrier element is displaceable following the outlet nozzle in two axes, which are perpendicular to an optical axis of the laser beam or perpendicular to a central longitudinal axis of the wire-shaped material for the optical adjustment element;
• and the optics carrier element is a monolith which is made of a single material and no individual part present on the optics carrier element is attached to the optics carrier element and the optics carrier element enables a central displacement element which permits movement perpendicular to the optical axis of the laser beam or perpendicular to the central longitudinal axis of the wire-shaped material by the optical adjustment element.