Processing head for cutting or drilling workpieces has a deviation device with a guide surface which lengthens the boundary surface of the Laval nozzle facing the workpiece

摘要

The deviation device has a guide surface (14) which lengthens the boundary surface of the Laval nozzle (11, 12) facing the workpiece (1) over the nozzle opening (13) and has a first bend (15) on the workpiece at a required distance in the flow direction behind the nozzle opening. Processing head for cutting or drilling workpieces comprises a Laval nozzle arranged laterally to the light or particle beam, from which a process gas stream exits with ultrasonic speed at an angle to the incidence axis of the light or particle beam, and a deviation device that changes the flow direction of the process gas beam so that it includes another angle with the incidence axis of the light or particle beam, especially parallel to this.