On the Pressure Distribution between Stock and Rolls in Ring Rolling

Abstract

The technique of incorporating pin-type pressure transducers into the rolls and accurate measurements of the normal pressure are reported for various rolling parameters when rolling plain and profiled rings.Experiments have been carried out using tellurium lead at room temperature to obtain quantitative information about pressure distribution relevant to hot rolling, i.e. when frictional effects are pronounced. The results indicate that, in contrast to conventional strip rolling, the normal pressure distribution in ring rolling shows an early peak soon after the entry plane.