Change of flow velocity and metal flow in extrusion of aluminum alloy

Abstract

We studied the die exit flow velocity change along the ram stroke advancement. Through our studies we found the following : ・The distribution of die exit flow velocity changes during initial and near end stages of extrusion. ・A ring filled with material that already has metal flow formed within has the effect of reducing the die exit flow velocity change at the initial and near end stages of extrusion by inserting the ring between the die and container.