Patent ID: 6649867
Filing Date: 2003-11-18
Classification: B23K

Abstract:
A blowing device with a nozzle holder for mounting on a laser system providing a laser beam, for cutting or welding workpieces, the blowing device comprising:at least one nozzle arrangement which generates a gas flow directed at an angle to the laser beam, the nozzle arrangement having a nozzle opening; an air feed opening on one side of the nozzle, in the vicinity of said nozzle opening, said air feed opening for an incoming air flow fed in essentially in parallel or at an acute angle to said gas flow; one of a protective glass directed essentially in parallel to the gas flow and a second air feed opening in the vicinity of the nozzle opening arranged on the other side of the nozzle, said second air feed opening for a second incoming air flow fed in essentially in parallel or at an acute angle to the said gas flow.