Fuel cap stamping simulation of AA5754 sheets using a microstructure based macro-micro multi-scale approach

sA macro–micro multi-scale approach is applied to study the fuel-cap forming process to identify the effects of friction, material constitutive behavior and microstructural features on formability of aluminum sheets. In the sample level (macro-scale) model, lower friction at contacts between blank and dies/post are found to delay the onset of necking. This is due to the fact that the materials from the center and outer regions are less hindered …