Laser welding at twice the speed

Schopfheim, Germany and Telford, Penn. – A new patent-pending method developed by Dreistern makes it possible to laser weld roll-formed parts continuously, even though the profile-forming system is operated in the start-stop mode.

In this way, the advantages of start-stop production and continuous welding can be combined. The system speed is often limited by the welding process, but on a series production system delivered in spring 2011 it was possible to double the speed using this method. In addition, there is the advantage of a continuous weld seam with its consistent quality that gives the profile extremely high torsional stiffness.

It works by means of an intelligent controller and movement of the laser optics and precision welding table. The relative velocity between the laser beam and profile is constantly maintained.

Dreistern has also written a program that can be used to determine the possible productivity increase for application.

Dreistern GmbH & Co. KG, an innovative machine tool manufacturer founded in 1949, is a family business. If you are planning applications for welded profiles, Dreistern will plan and supply you new systems or extend existing start-stop systems using the new oscillating welding technology.