A2A® (Absorbent to Absorbent) Plastic Welding

This patented joining process with two laser-absorbing joining partners - A2A® (Absorbent to Absorbent) for short - has numerous advantages over the conventional laser transmission welding process. With this process, assemblies can be welded without transparent joining partners, and there is also a greater degree of freedom with regard to component design (keyword: laser shadowing).

In our comprehensive study, we were able to demonstrate that the A2A® joining process behaves much more robustly with respect to component tolerances and material variations compared with conventional plastic joining processes. All this broadens the field of application of (laser) plastic welding to a great extent.