Metal-based additive manufacturing is becoming increasingly important in industrial manufacturing with growing demands on the component characteristics. This mainly concerns geometrical complexity, weight, manufacturing costs and mechanical properties. Especially the latter one is going to be safely handled with the printing technique called Wire-Arc-Additive-Manufacturing process (WAAM). Here, the resulting material properties can be ensured by means of high-quality wire raw material, adjustable heat input, practicable cooling mechanisms and advanced process control, particularly. Next to the possibility of printing near-net-shape basic shapes with dimensions up to few meters, a further advantage is the application of high deposition rates, which results in high production efficiency. In order to give insight into the current stage of WAAM development, this paper deals with printed components made of lightweight construction materials, where complex geometries are manufactured additively, and resulting material and component properties will be presented. The results demonstrate, that relevant light metals such as titanium alloys (TiAl6V4), magnesium alloys (AZ31) or aluminum alloys (AW6000) can be processed with very high quality. In the field of titanium materials, it is possible to achieve mechanical-technological properties, which at least correspond to the level of the base materials, and in some cases are significantly better. Similarly, very good properties could be demonstrated in various aluminum alloys. In the field of magnesium materials, the first scientific analyzes are currently taking place, but these already indicate very good results.