Petrat, TorstenGraf, BenjaminGumenyuk, AndreyRethmeier, Michael2020-06-032020-06-032016-09-191875-3884https://depositonce.tu-berlin.de/handle/11303/11251http://dx.doi.org/10.14279/depositonce-10139Maintenance, repair and overhaul of components are of increasing interest for parts of high complexity and expensive manufacturing costs. In this paper a production process for laser metal deposition is presented, and used to repair a gas turbine burner of Inconel 718. Different parameters for defined track geometries were determined to attain a near net shape deposition with consistent build-up rate for changing wall thicknesses over the manufacturing process. Spot diameter, powder feed rate, welding velocity and laser power were changed as main parameters for a different track size. An optimal overlap rate for a constant layer height was used to calculate the best track size for a fitting layer width similar to the part dimension. Deviations in width and height over the whole build-up process were detected and customized build-up strategies for the 3D sequences were designed. The results show the possibility of a near net shape repair by using different track geometries with laser metal deposition.en600 Technik, Technologielaser metal depositionInconel 718additive manufacturingmaintenancerepairoverhaulArticle1875-3892