An accurate real-time positioning of the processing laser is essential to achieve premium quality welds. At the same time the application of remote operation and „welding-on-the fly“ in the industrial mass production results in reduction of unproductive phases of new positioning.

Lessmüller Lasertechnik proposes several seam tracking systems which enable to gain high quality seams as well as efficient production and can be installed on various laser welding heads. These automated and high dynamic systems determine and regulate the optimum welding position and compensate component tolerances or operating gap changes online:

  • Optical coherence tomography (OCT) for the µm-precise, no-contact seam-tracking with accurate measurement of the joint position, the effective processing beam position and beam focus
  • Precise positioning at the seam joint (lateral lens shift) and determination of the optimum focal position (axial lens shift) with the LSO welding optics
  • High accuracy seam tracking and real-time process visualization for remote laser welding with the FILLET SCAN system based on camera and external illumination


Product videos

First-time use of laser remote welding with FILLET SCAN for the production of doors
© BMW Group

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