METHOD AND DEVICE FOR JOINING FLAT PRODUCTS TO BE CONNECTED SUCH THAT THEY OVERLAP

摘要

The invention concerns the joining of flat products made from metal materials, which products are to be connected such that they overlap. Joining is brought about in a roller gap into which the flat products to be connected are introduced at an acute angle. Before they are pressed against one another in the roller gap, they are heated by radiant energy at their mutually facing surfaces but they are not melted. By suitable profiling of at least one roller shell or one flat product, the surface pressure is restricted to the region of the lap joint, and material flow transversely to the direction of this lap joint is prevented.