| 摘要 |
The invention relates to an apparatus and a method for powder-based laser build-up welding of a workpiece comprising in particular a highly reflective material, in particular copper, with a laser source for the emission of a laser beam; a powder nozzle (15) for the focused delivery of a powdered material (17) to a location to be built up on the workpiece (5); an optical device (3) for focusing the laser beam into a focal plane (F) on the workpiece (5), onto the location to be built up, wherein the material is melted at the location to be built up by means of the laser beam focused onto the location to be built up; a first relative movement device, for providing a first relative movement (19) of the optical device (3) together with the powder nozzle (15) on the one hand and the workpiece (5) on the other hand with respect to one another; characterized by a second relative movement device, for providing a second relative movement of the laser beam and of the workpiece (5) with respect to one another. |
