Abstract
Sheet metal stamping–forging process is a newly developed composite metal forming process in recent years. Traditional stamping and forging processes are organically integrated in the new process, which is applied to overall plastic formation of structural parts with large surface area and large thickness difference. Sheet metal flanging and upsetting process was simulated in the paper by using the general finite element method software MSC.Marc. The effects of rolling anisotropy, elastic modulus, initial yield stress, hardening exponent and initial thickness of sheet on final springback angle of the steel sheet were studied. The result shows that the rolling anisotropy significantly influenced the thickness distribution of the sidewall after flanging and that the final springback angle decreases with the growth of elastic modulus and increases with the growth of initial yield stress and initial thickness of sheet. The hardening exponent has little influence on final springback angle.
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