Basic Research on Lattice Structures Focused on the Strut Shape and Welding Beads

This survey is about the requirements of lattice structures which are made by Selective Laser Melting. The process is based on Additive Manufacturing. It allows the generation of almost every shape. Even complex lattice structures can be manufactured using this technology. Moreover it is possible to integrate high performance lightweight structures into applications. Lattice structures are distinguished into periodic structures and stochastic cellular structures, each type with its individual properties. In a great field of applications periodic lattices are integrated. Because of the great demand for high performance applications, the industry has a big interest in lattice structures. A survey on this topic is indispensable. The main aim is to extract the most influencing process parameters that effect the properties of the structures and to create a construction guideline using the extracted results. Due to the fact that periodic lattices consist of struts, the basic research is focused on those.