PROCESS AND APPARATUS FOR SPOT WELDING WITH A LASER BEAM

摘要

Laser spot welding comprises a first stage in which the surface of the material to be welded is prepared, and a second stage in which the weld is made. During the first stage the light reflected by the weld zone of the material is measured in real time by a system (34, 36) and then processed in a monitoring circuit (37) connected to a circuit (30) that controls the laser source (31). This enables the parameters of the laser beam (32) to be adjusted in real time in accordance with the measurements taken.