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Paper published in a book (Scientific congresses and symposiums)
Friction coefficients evaluation for steel thixoforging
Pierret, Jean-Christophe
;
Rassili, Ahmed
;
Vaneetveld, Grégory
et al.
2010
•
In
Proceedings of The 13th Esaform Conference on Material Forming (2010) - semi-solid processing
Peer reviewed
Permalink
https://hdl.handle.net/2268/62454
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Friction coefficients evaluation for steel thixoforging.pdf
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Keywords :
Thixoforming; thixoforging; steel; friction; LiMaRC - Liège Materials Research Center
Abstract :
[en]
Since the first works on thixoforming, lot of studies have been performed all over the world and the behaviour of the globular semi-solid slurry is now quite well understood. This knowledge had lead to an industrialisation of the technology for low melting point alloys as aluminium or magnesium. For high melting point alloys as steel, this industrialisation is still a wish but seems closer each year. In the aim of this development of the process, it is important to be able to accurately represent the behaviour of the slurry during thixoforming. In this goal, lot of constitutive models has been proposed during the last years. However, until now there isn’t any study about the friction in the case of thixoforming. This knowledge is needed as friction has an important effect on the flow of the slurry during the shaping. The aim of this work is so to propose a quantification of the friction coefficients for the thixoforming technology thanks to experiments on a dedicated tool and comparison with simulations run on the finite elements code Forge2008©. The friction law is a Coulomb limited Tresca one.
Disciplines :
Materials science & engineering
Mechanical engineering
Author, co-author :
Pierret, Jean-Christophe
;
Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Rassili, Ahmed
;
Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Vaneetveld, Grégory
;
Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Bigot, R.
Lecomte-Beckers, Jacqueline
;
Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Language :
English
Title :
Friction coefficients evaluation for steel thixoforging
Publication date :
2010
Audience :
International
Main work title :
Proceedings of The 13th Esaform Conference on Material Forming (2010) - semi-solid processing
Peer reviewed :
Peer reviewed
Available on ORBi :
since 16 June 2010
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