METHOD AND DEVICE FOR CONTROLLING THE POWER TRANSMITTED BY A LASER BEAM IN A REFERENCE POINT, BRAZING METHOD AND DEVICE

摘要

In accordance with said control method, the transmission of the laser beam (24) is periodically interrupted with the aid of means for masking (30) the laser beam (24) placed between the reference point (28) and a source (22) of the laser beam (24). Moreover, the transmission power of the source (22) of the laser beam (24) is varied between the minimum and maximum values, such that the emission times of the source (22) of the laser beam (24) at the minimum power substantially coincide with the masking times of the laser beam (24) via the masking means (30). Preferably, the minimum value is at least equal to 10% and the maximum value at most equal to 90% of a maximum emission power of the source (22) of the laser beam (24).