Reference : Stability of steel thixoforging process
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
Engineering, computing & technology : Mechanical engineering
http://hdl.handle.net/2268/35404
Stability of steel thixoforging process
English
Pierret, Jean-Christophe mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Science des matériaux métalliques >]
Rassili, Ahmed mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Science des matériaux métalliques >]
Vaneetveld, Grégory mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Science des matériaux métalliques >]
Lecomte-Beckers, Jacqueline mailto [Université de Liège - ULg > Département d'aérospatiale et mécanique > Science des matériaux métalliques >]
Sep-2010
Transactions of Nonferrous Metals Society of China
Elsevier
20
Special 3
Proceedings of the 11th International Conference on Semi-Solid rocessing of Alloys and Composites
937-942
Yes
International
1003-6326
China
[en] thixoforging ; steel ; high melting point ; stability ; robustness ; process
[en] Whereas thixoforming of aluminum and other low melting point alloys is now an industrial reality, thixoforming of high melting point alloys, as steel, is still at the research level. High temperature issues, die wearing and production rate are problems that must be solved and are more and more investigated. This work focus on the study of a thixoforming line stability in the aim of industrialization of the process. The line is fully automated in order to maximize the repeatability of the experiments. Studied parameters are the heating cycle, the slug temperature, the tool temperature and the forming speed. For each of them we will give an order of magnitude of the expected variations in a steady-state process as well as the effects of these variations on the process itself (forming load and parts quality). Three different tools, and so three slugs and parts geometries, have been used in the experiments and are presented. Some mathematical simulations have been realized on the finite elements code Forge2008© with a semi-solid constitutive law and are also compared to the experiments. So the capacity of the model to represent the process stability is discussed as well.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/35404

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