LASER PROCESS MONITORING

摘要

A method and a device for monitoring laser cutting processes in the high-power range above 1 kW mean output envisage automatic quality control after interruption and/or completion of a cutting process carried out with predetermined cutting parameters. The cutting process is interrupted after a first partial processing step, whereupon a partial section (K1 . . . KX) of the processing path is scanned. This preferably takes place at a higher speed than that for the first partial processing procedure and preferably close to or on the same processing path. On the basis of the scan result at least one quality feature of the processing result is automatically determined and compared with predefined quality specifications. Depending on the result of the comparison a fault message can then be issued, the processing interrupted, reworking of a defect point carried out, at least one cutting parameter adjusted and the cutting process continued with the changed set of cutting parameters.

主权项

1. A method of monitoring laser cutting processes in the high-power range above 1 kW mean output, wherein after interruption and/or completion of a cutting process carried out with predetermined cutting parameters quality control is automatically carried out, wherein the cutting process is interrupted after a first partial processing step, wherein at least a partial section (K1, . . . KX) of the processing section cut during the first partial processing step is scanned at a higher speed than that of the laser cutting of the first partial processing step and close to or on the same processing path, wherein on the basis of the scan result at least one quality feature of the processing result is determined and compared with predefined quality specifications, and wherein depending on the result of the comparison one of the following measures is carried out: issuing of a fault message, discontinuation of the cutting process, adaptation of at least one of the cutting parameters, reworking of one or more defect points, continuation of the cutting process, with the changed set of cutting parameters.