:A new user-friendly three-dimensional simulation system for bar and wire r
od rolling processes has been developed. A graphical user interface special
ly designed for rolling engineers is coupled with strategic FE simulator fo
r rolling process CORMILL. This simulation system enables them to make accu
rate prediction of load and deformation characteristics of bars and wires u
nder rolling, The effects of roll profiles as well as cross-sectional tempe
rature distributions to width spreads are validated by comparing numerical
results obtained by this system and experimental measurement. After four ye
ars' developing project organized by ISIJ, this system is now being install
ed in bar and wire rod rolling industries. A new R&D activities in bar and
wire rod rolling will be promoted as the developed system can be easily ope
rated by rolling engineer without special knowledge for non-linear FEM.