Patent ID: 8129657

Claim:
A machining head comprising integrated powder supply for deposition welding with laser radiation which is directed with a focal spot onto supplied powder and onto a workpiece surface, the powder supply being formed symmetrically to the axial feed direction with a plurality of channels arranged oppositely and the channels being aligned at an obliquely inclined angle so that powder exiting them is supplied into the focal spot of the laser radiation from two mutually oppositely disposed sides over a whole width of the focal spot with respect to the axial feed direction, the channels being arranged and aligned such that powder is incident from two mutually oppositely disposed sides onto an axis onto the workpiece surface while forming a straight-line powder front, the focal spot having a rectangular, square or elliptical shape, the channels being arranged parallel to one another in a series arrangement, the focal spot having a larger length than width with respect to the axial feed direction.