Development of Process and Materials
Additive manufacturing (AM) or 3D-printing is rapidly gaining momentum as a method for the production of advanced components in application fields such as aerospace, medical technology, and tooling. The development is driven not only by the need to reduce the manufacturing cost of complex parts and thereby increase efficiency but also to open up new possibilities of manufacturing advanced components based on completely new design criteria. Hitherto, AM has mainly been focused on a rather limited range of materials such as polymers and some metallic alloys. The future of AM, however, is dependent on innovative methods to rapidly develop new materials systems with specific properties. This will require a fundamental understanding of the materials science of AM. Such studies are time-consuming and there is a need for new theoretical and experimental approaches in this area.
The aim of the project is to develop experimental and computational methods to increase the understanding of the interplay between AM process parameters and material thermo-mechanical- metallurgical response. The methods will enable optimization of the AM process for near net shape and assured material integrity. They will also enable rapid development of new high performance alloys using different types of AM process. The project involves complementary competencies at two nodes; Uppsala University (UU) and Luleå University of Technology (LTU)/Malmö University (MaH). The project also has strong support by industry (Sandvik, ABB, SAAB Aeronautics, GKN Aerospace, Arcam etc) and will be carried out in close co-operation with industrial partners. This research approach has the best prerequisites to integrate fundamental science towards industrial application.
The project is organized in work packages and demonstrators as illustrated to the right. In this project we will:
• Develop models to predict microstructure and properties of components manufactured by AM. The models will be generic, thus valid for a wide range of alloy systems as well as different types of AM processes.
• Develop screening methods to rapidly evaluate microstructure, phase composition and properties of AM-processed components.
• Address specific problems related to the design of new AM- processed high-performance alloys.
• Demonstrate the use of our methods and models with AM- processed Ni-based alloys (Inconel) and high-performance amorphous alloys in co-operation with industrial partners.
• Create a long term competence platform in AM of strategic importance for Swedish industry.
3. AM of high entropy alloys
4. AM of amorphous alloys