Patent ID: 6046427
Filing Date: 2000-04-04
Classification: B23K

Abstract:
A process for cutting, perforating, or inscribing repeating patterns in continuously-moving flat material by locally vaporizing the flat material with at least one controllable laser beam from at least one beam deflection system, wherein each laser beam is moved relative to the flat material in two perpendicular directions from a fixed point, said process comprising the steps of:detecting the speed of the flat material;imparting bent or folded edges to the moving, flat material;controlling the beam deflection system to execute the cutting, perforating or inscribing procedure, based on a synchronization pulse generated by the detection of the bent or folded edges and the detection of the speed of the flat material; andmonitoring the beam position and beam intensity of each laser beam, depending on the detected rate of the flat material and the detected bent or folded edges.