The Study of the Impact of Aluminum Formability Parameters on its Stamping Formability

摘要

To find parameters to estimate stamping formability of aluminum alloy sheet in autobody, simulate the cylinder components stamping process by LS-DYNA software based on dynamic explicit method; Study the impact of the material parameters (Yield stress RPS, hardening exponent n and anisotropy parameter r) and the process parameters (the blank-holding force and friction coefficient) on the stamping formability of the aluminum alloy sheet; Analyze the corresponding relationship between the research targets (material and process parameters) and the drawing properties through the Regression Analysis. The results indicate that the n values of the material parameters and all of the process parameters in this paper are remarkably correlated with the drawing properties of aluminum alloy, while the r values of the material parameters have little correlation with it.