Remote welding
High-speed welding system

Remote welding has been established in industrial production during the last years. Here, the focal point of the laser beam is focused in the plane by means of a mirror that can be rotated in two axes.

Because of the long focal length of the focusing lens at 1600 mm, small deviations of the mirror cause long paths in the plane, and thus extremely fast positioning of the focal spot at different welding positions.

The complete system has a further linear axis, on which the focusing lens is mounted. The travel of this lens, at up to 50 meters per minute, allows the focal point to be positioned spatially, in addition to the plane. This principle, which is called REMOTE because of the extremely long distance between focusing lens and work point, revolutionizes multi-spot welding in the area of sheet metal. The main benefits for the customer are very short amortization times, combined with reduced cycle times, savings in floor space in integrated production lines, and greater freedom of design due to increased flexibility of geometry.

The work area is up to 2400x1500x600 [mm]. A 3.5 kW CO₂ laser from the DC series is used, because it is its almost optimum beam quality that makes such a long focal length in this workspace possible.