Finite element analysis of hot continuous rolling process of 6016 aluminum alloy based on secondary development of ABAQUS
Hot continuous rolling finite element model(FEM)of 6016 aluminum alloy was established using ABAQUS.The ABAQUS software was secondary developed based on the VUSDFLD user subroutine and static recrystallization function was written in Fortran lan-guage.The multi-parameter coupling of thermal,force and microstructure during hot continuous rolling process of 6016 aluminum alloy was achieved by introducing material constitutive model and the recrystallization grain evolution model.The evolution of equivalent stress field,equivalent strain field,temperature field and microstructure of 6016 aluminum alloy during multi-pass(17 passes)hot continuous rolling process was studied using this model.The recrystallization behavior during hot continuous rolling process was verified through experi-ments.The results show that compared with the center part in the rolled plate,the surface of the rolled plate has lower temperature,greater deformation,lower recrystallization percentage and larger grain size.The contact heat transfer coefficient is the main factor affecting the tem-perature field during hot continuous rolling process.The stress field and rolling force are related to factors such as friction factor and contact area.Under the combined effect of rolling temperature and plastic deformation,6016 aluminum alloy undergoes recrystallization.The com-parison between simulation results and actual production data indicates that the numerical calculation model is in line with actual production.
finite element simulationsecondary developmentaluminum alloyhot continuous rolling
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