Numerical prediction of the galling of aluminium alloys in cold strip drawing

A methodology based on finite element computations is proposed to predict the galling onset of aluminium alloys in cold forming. The methodology assumes that galling starts as soon as a finite element in the area of contact has reached a critical damage. The damage is calculated using Xue's model, which takes into account the effect of tangential stresses on the damage evolution. The tangential stress is calculated using Wilson's mixed...