Abstract
A numerical model is developed to estimate the variation of thickness, stress and strain distribution in the flange of partially drawn cylindrical parts taking into the consideration both nonlinear strain-hardening and frictional force between blank and tooling surfaces. The stress and strain distribution simulation allows the proper choice of working parameters such as retaining pressure and friction coefficient. The reduction of friction coefficient reduces the stretching effect and thinning of the wall of the cup. conversely a high value of the friction coefficient and high strain-hardening enhances the stretching effect and thickness reduction.
Cuvinte cheie
cylindrical part
blank
stress and strain determination
lubrication.