Simulation and experimental study on extrusion process of 5E61 aluminum alloy wall panel profile
To study the deformation of 5E61 aluminum alloy wall panel profiles during ex-trusion,this paper established a constitutive model of 5 E61 aluminum alloy through thermal simulation compression experiments and determined the relevant parameters of the dynamic recrystallization kinetics model.The research results show that the mold structure and extru-sion process jointly determine the deformation of the metal during hot extrusion molding.The mold structure has the greatest impact on the extrusion velocity field of the profile while the extrusion process has less significant impact.The influence of mold structure on the micro-structure of profile cross-section is relatively small,and the temperature and strain fields of profile extrusion jointly determine the evolution of profile cross-section microstructure.The mold temperature and extrusion velocity have the greatest influence on the shape of the mate-rial head,the temperature field of the profile section,and the dynamic recrystallization vol-ume fraction,followed by the extrusion cylinder,and the influence of ingot temperature is the least.
NETL
NSTL
万方数据
