摘要
By using aluminum alloys,the properties of the material in sheet hydroforming were obtained based on the identification of parameters for constitutive models by inverse modeling in which the friction coefficients were also considered in 2D and 3D simulations.With consideration of identified simulation parameters by inverse modeling,some key process parameters including tool dimensions and pre-bulging on the forming processes in sheet hydroforming were investigated and optimized.Based on the optimized parameters,the sheet hydroforming process can be analyzed more accurately to improve the robust design.It proves that the results from simulation based on the identified parameters are in good agreement with those from experiments.
By using aluminum alloys, the properties of the material in sheethydroforming were obtained based on the identification of parameters for constitutive models byinverse modeling in which the friction coefficients were also considered in 2D and 3D simulations.With consideration of identified simulation parameters by inverse modeling, some key processparameters including tool dimensions and pre-bulging on the forming processes in sheet hydroformingwere investigated and optimized. Based on the optimized parameters, the sheet hydroforming processcan be analyzed more accurately to improve the robust design. It proves that the results fromsimulation based on the identified parameters are in good agreement with those from experiments.
基金
Project(9901351) supported by the Hydromechanical Deep Drawing without a Draw Die
Project(1057001) supported by the National Natural Science Foundation of China
