The aerospace industry is one of the leading industries in the use of additive manufacturing. Lightweight construction is one of the key factors here and additive manufacturing offers a completely new approach to design and production. This particularly applies to processes such as the repair and reworking of selected components. These can be produced in almost any geometry by additive manufacturing. Especially with bionic structures, conventional manufacturing processes reach their limits here. This is demonstrated above all by innovative developments in DED processes with powder and wire, where semi-finished products or intermediate structures are given complex properties. The results are close to final contour geometries that can be produced at low cost.