About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys: Development and Manufacturing
|
Presentation Title |
Investigating the effect of die sonication during extrusion of aluminum hollow profiles on process and products |
Author(s) |
Maik Negendank, Tamara Thomas, Nico Laengst, Janne Bodensieck, Stefan Lechner, Alexander Ruediger, Verena Merklinger, Joachim Maier, Soeren Mueller |
On-Site Speaker (Planned) |
Maik Negendank |
Abstract Scope |
Aluminum hollow profiles are usually extruded via porthole dies. Very wide profiles may require the use of spreading dies. However, for very high spreading angles, feeding billet material into the outer sections of a wide profile can become difficult. Hence, applying high frequency oscillations by sonication on the extrusion die should reduce contact and thus friction between aluminum and die steel during extrusion processing. Thus, the material flow from the billet into the extruded profile should be improved and the extrusion load and profile exit temperatures reduced. In order to test this hypothesis, an external sonication system was designed and applied onto the extrusion die. The effects of sonication on extrusion load, profile exit temperature and material flow were investigated via FEM-simulations as well as extrusion experiments on a 8MN extrusion press at Extrusion R&D Center of TU Berlin. Profile microstructures and material properties were also investigated. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Process Technology, Modeling and Simulation |