Investigation of Metal Flow in Non-Isothermal Forging Using Ring and Spike Tests

Abstract

Summary: The Finite Element Method based computer code ALPID has been used to simulate the deformation of ring and flange-shaft (spike) type parts under non-isothermal conditions. In case of rings, good correlation has been found between predictions and experimental data provided the friction factor and the heat transfer coefficient have realistic values. In case of spike forging, the effect of die chilling upon metal flow has been investigated for the different cases of heat transfer between the dies and the deforming billets from Ti6242 alloy. The results and the conclusions agree qualitatively with observations made in forging practice. © 1988 CIRP.