METHOD AND DEVICE FOR MONITORING A LASER MACHINING OPERATION TO BE PERFORMED ON A WORKPIECE AND LASER MACHINING HEAD HAVING SUCH A DEVICE

摘要

A method for monitoring a laser machining operation to be performed on a workpiece by detecting at least two current measured valued by at least one sensor which monitors the laser machining operation and determining at least two current characteristic values from the at least two current measured value, wherein the at least two current characteristic values jointly represent a current fingerprint in a characteristic value space and providing a predetermined point set in a characteristic value space, and classifying the laser machining operation by/detecting the position of the current fingerprint relative to the predetermined point set in the characteristic value space.