METHOD AND DEVICE FOR COMBINED LASER-ARC WELDING WITH CONTROL OF LASER UNIT ACCORDING TO WELDING TORCH

摘要

The invention relates to a method for combined laser-arc welding and to a device (1) for combined laser-arc welding, comprising a laser unit (2) for producing a laser beam (3), a welding torch (4) for producing an arc (5), a supply unit (6) for the laser unit (2) and a supply unit (7) for the welding torch (4). In order to optimize the energy balance and to adapt the combined laser-arc welding process to the respective conditions, a device (14) is provided for controlling the laser unit (2) according to the welding torch (4). The laser output (P_Laser) is adapted to the arc output (P_Arc) and is controlled by means of a closed control circuit.