New 3D printer expands additive manufacturing possibilities at Leibniz-IWT

A new 3D printer has been in use at Leibniz-IWT for several months. With its unique configuration and various modules, the state-of-the-art device opens up a wide range of perspectives for researchers from all main departments in the field of additive manufacturing. The 3D printer is equipped with a 700 W laser and thus enables the processing of high-melting metal powders. With a build plate of 25 cm, it also offers space for printing larger objects. The modular design expands the possibilities of the institute's new 3D printer. The ultrasound module is used in particular to trigger high-frequency vibrations that cause a refinement of the microstructure in the additively manufactured materials. The finer microstructure in turn leads to a higher strength of the material. In addition, the printer is equipped with a multi-material module. This enables the processing of two different metal powders in one printing process by flexibly applying two different powders within a single layer and from layer to layer. Copper component, for example, can be integrated into a steel component. This possibility can be useful in the additive manufacturing of valves that are planned for use where hydrogen flows through them and therefore require a hydrogen-resistant material layer inside. Another module enables the local modification of chemical compositions of metallic materials during the process. This allows the microstructure and physical properties of the materials to be modified locally.
If you have any questions about additive manufacturing research, please feel free to contact the persons listed here.
Dr.-Ing. Anastasiya Tönjes
Head of Department Lightweight Materials
Phone: +49 421 218 - 51491
E-Mail: toenjes(at)iwt-bremen.de
Assoc. Prof. Dr.-Ing. Ilya Okulov
Head of Department Processing of Functional Materials
Phone: +49 421 218 51215
E-Mail: I.okulov(at)iwt-bremen.de