P 353 - Laser beam dispersion for wear protection of precision blades made of strip steel materials

In order to open up the widest possible field of application for industry, the investigations were extended to include both hard material-based and metal-based paste systems. The pastes were developed in consultation with the project partner Innobraze GmbH in Esslingen and their composition was varied according to the tests. The evaluation of the tests in co-operation with the cutting blade manufacturer Lutz KG in Solingen has shown that alloy systems are more suitable than hard material-based coatings. The wear resistance is higher and therefore the service life of the end product also increases. An optimum result could not be achieved. The deficits of the surface layers produced lay particularly in their reproducibility and the inhomogeneous distribution of the filler material within the layers produced. This is particularly important when it comes to realising production. For process-related and economic reasons, coating lengths of several hundred metres of the same component quality must be achieved. This could not be achieved with the previous tests, so that an industrial implementation does not appear to be feasible at the present time. There is still a need for more research, particularly in the variation of the paste composition and its properties. In addition, the handling technology must be further improved. The complex interaction of all components involved in the process could not yet be conclusively analysed within the scope of this project. STUDIENGESELLSCHAFT STAHLANWENDUNG e. V.