Modular laser welding system for tubes and profiles

Rofin’s Profile Welding System is designed and configured to weld tubes and profiles using fully integrated sensor technology that detects the weld gap and enables seam tracking. The system provides beam guidance and sensing together with PC-controlled linear axes. The sensors used for weld seam position recognition and seam tracking can detect even the slightest discrepancies in the seam position. This adaptive system ensures that the laser beam always follows the seam thus providing high process reliability and consistency. The high speed precision linear drives used by the Profile Welding System provide positional accuracies of 20 micron at production speeds of up to 60 m/minute. Modular design means the system can be easily configured to suit individual customer’s requirements. For example, the beam guidance can be supplied with either a beam switch unit or a beam splitter unit, the latter enabling simultaneous operation on several systems or alternatively at multiple welding points Laser welding enables narrow seams with fine grain structure to be produced together with a minimum of heat effected zone. Controlled and predictable, laser welding means that in the majority of cases no further heat treatment or processing is required on the welded component.