Effect of Experimental Conditions on 7075 Aluminium Response During Thixoextrusion
Article dans une revue avec comité de lecture
Date
2012Journal
Key Engineering MaterialsAbstract
The deformation behavior of semi-solid aluminum alloy is strongly dependent on the microstructure. This paper illustrates several experimental research works concerning thixoextrusion of 7075 aluminum alloy which was carried out at “Arts et Métiers ParisTech” of Metz. Inductive re-heating of the aluminum billet is the method used in order to obtain the target liquid fraction for thixoextrusion. To minimize the heat losses, a sample obtained from a direct extruded bar is inserted in a die for reheating in semisolid state and thixoextrusion. During the experimental re-heating process, the temperature was directly controlled by using thermocouples for temperature measurements in the sample and also in the die. The influence of different working ram speeds and reheating temperature on the microstructure evolution was studied by optical microscopy. The experimental results on extrusion load and microstructure evolution of the component are reported.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lectureBECKER, Eric; CEZARD, Pierre; LANGLOIS, Laurent; FAVIER, VERONIQUE; PIERRET, Jean-Christophe (Trans Tech Publications Ltd, 2008)Steel thixoforging process combines the advantages of performing parts having highly complex shapes and good mechanical properties. These advantages result from the shear thinning flow behaviour of semi-solids due to ...
-
Article dans une revue avec comité de lectureThe present paper focuses the modelling and the simulation of a direct thixoextrusion test achieved on C38 semi-solid steel. To validate the modelling and the simulation, it is important to get various experimental ...
-
Impact of experimental conditions on material response during forming of steel in semi-solid state Article dans une revue avec comité de lectureSemi-solid forming is an effective near-net-shape forming process to produce components with complex geometry and in fewer forming steps. It benefits from the complex thixotropic behaviour of semi-solids. However, the ...
-
Article dans une revue avec comité de lectureBECKER, Eric; LANGLOIS, Laurent; FAVIER, VERONIQUE; PIERRET, Jean-Christophe; CEZARD, Pierre (Springer Verlag, 2008)Since always, Industry minimizes manufacturing process plan and increases mechanical behaviour. In this topic, the thixoforging process offers important perspectives especially steel thixoforging. It is on the way of ...
-
Communication avec acteSince always, Industry minimizes manufacturing process plan and increases mechanical behaviour. In this topic, the thixoforging process offers important perspectives especially steel thixoforging. It is on the way of ...