In the project “ProZell” the aim is to manufacture special open-cellular structures for crash absorption in high manganese steels. The first step included the creation of concepts of different structures, the selection of the preferred variant and the implementation into a CAD-model.

The structures are manufactured following two different routes: additive manufacturing and investment casting. As base for the structure the f2cc,z structure and the additive route the studies [1, 2] are used.

The manufactured structures will be tested via compression testing.

The target is to get the same structure with both routes and to compare their compression behaviour.

Where else the additive structures have a size of 3 mm as unit cell, the casted structures start with a unit cell of 10 mm and is stepwise reduced to find the right parameters and the limitations of the process.

As next step the design of the structures shall be adapted according to the results. Additional the influence of different strut diameters (relative densities) and radii at the strut intersections will be studied.

For the casting the structures lost wax casting is used