Surface engineering with lasers

In advanced matcrials engineering different materials are combined at various piaces on a workpiece. For example, a part in a construction which moves up and down will preferably be made of a light weight material. Nevertheless the workpiece may still have areas where it touches other parts that move differently. It is precisely these spots which are subjected to wear. By covering the light weight part with a wear resistant coating the life span till failure will be stretched while no concessions are made to its specific weight. In this respect one may for example think of pistons, valve seats, pump shafts, and saws ... Zie: Summary