Laser beam welding method for joining at least two workpieces in which the energy application by the laser beam per surface area and time units is limited to a maximum value to prevent the occurrence of weld undercut

摘要

Method for laser beam welding of at least two workpieces in which the critical energy application amount per surface and time units is determined above which weld undercut on the side of the weld away from the laser beam occurs. During welding the laser beam is then controlled so that this critical value is not exceeded. An independent claim is made for a laser beam welding device that has an arrangement for regulating the laser beam energy.