Instead of completely exchanging expensive components after wear and tear, these can be repaired using deposition welding. Up to now, a gas metal arc welding (GMAW) process has usually been used for deposition welding, with an average feed rate of five kilos per hour. Since the dilution level is around 30 percent, several layers must be deposited, one on the other, until the protective covering is pure enough. Scientists at the Laser Zentrum Hannover e.V. (LZH) have now, as part of the project HoDopp, developed a laser-supported, arc process, which achieves this in a single layer.