A plurality of stretches of laser weld are executed on a structure to be
welded by means of a device for focusing and orientation of the laser
beam, which is associated to a component element of a manipulator robot.
The focusing head is kept in the proximity of, but not closely adjacent
to, the different areas to be welded and can consequently follow a
simplified path, whilst the device for orientation of the laser beam aims
the latter on the different areas of the structure to be welded, so that
the speed of travel of the laser beam spot along the longitudinal
direction of the weld stretch is independent from the speed of travel of
the robot end element.
