Thermomechanical coupling and temperature uniformity control for bar DROF roughing
LI Lu
ZHANG Lei
JIA Shangwu
LIU Jing
REN Jinyu
TIAN Ruiming
ZHANG Lijun
WANG Bin
LIU Chuanxue
SUN Yanqing
Abstract：A three-dimensional thermomechanical coupled finite element model was developed using Abaqus to address temperature non-uniformity and optimize process parameters synergistically in the roughing stage of a no-reheating direct rolling line for bars.The model enables a dynamic,strong-coupled simulation of the rolling force,temperature,and deformation fields.By employing adaptive mesh refinement,it quantitatively characterizes the fluctuations in rolling torque,the core-to-surface temperature gradient,and the velocity field distribution.This model provides a theoretical foundation for process optimization,effectively suppressing the end-temperature gradient induced by the direct rolling process and minimizing head-to-tail property variation within the same batch of products.
Keywords：bar and roddirect rolling of forgingrough rollingthree-dimensional thermodynamic coupling model
Publication Date：2025-11-20
Online Publishing Date：2026-01-06(First online date of this platform, not the publication date of the document)
Pages：6( 43-48 )