Study On Extrusion Mould And Process Optimization Method Of 6005 Profiled Hollow Aluminum Profile

Aluminum alloy profiles,the extrusion die structure and extrusion process parameters have a crucial impact on the extrusion process of aluminum alloy profiles.The die structure and extrusion process parameters is directly related to the quality of the profiles.In actual production,the extrusion die structure is mainly determined by the designer's experience,and it needs to undergo multiple trial molding and mold repair.Using numerical simulation to study the extrusion process of aluminum alloy profiles,the metal flow law and physical quantities such as stress,velocity and displacement at various locations can be obtained.It can be used to predict the defects that may occur during metal forming and provide a reasonable design for the mold structure.In this paper,the cross-sectional shape and size of the 6005 hollow aluminum alloy profile are designed,and the split-combination die is designed.The numerical simulation of the profile is carried out by using the arbitrary Lagrangian-Eulerian algorithm finite element software HyperXtrude to analyze the material flow characteristics and the deformation of the die during the extrusion process.Under the force situation,the reasonable mold structure optimization variables were selected and the simulation experiment design was carried out,and the influence of the key structure of the split mold on the extrusion process was obtained.The simulation experiment was carried out by changing the values of the process parameters,and the process parameters were analyzed.The influence law of alloy profile splitting die extrusion process;select reasonable die structure or extrusion parameter optimization variables,determine the optimization target,and carry out simulation experiment design,obtain the optimization target results of all experimental schemes,and obtain the optimal using response surface method Mold structure or extrusion process parameters.The results of this paper show that: After optimization,the mean square deviation of the cross-sectional flow velocity at the exit of the die at the die exit decreased by 39.94 mm/s from 42.83 mm/s,and the extrusion force F decreased from 3513.03 tons to 3345.81 tons.The difference between the experimental results and the predicted values is very small.This shows that the combination of numerical simulation and artificial intelligence algorithms can quickly and accurately design a qualified extrusion die,which has guiding significance for actual production.