Unite Modeling Method for Finite Element Analysis in Tube Tension-reduced Process

The tube tension-reduced process was divided into the rolling deformation of the stand and the remeshing generation between the stands taking the tension between the adjacent stands as the boundary conditions by means of the unite modeling method. Thefinite element model has been established to simulate the metal deformation of the tube tension-reduced stand on the platform of FEM software Marc. The shape of the product section simulated was similar to that of the actual rolled product, and the variation of wall thickness was the same. The reliability of the model was verified by comparing the actual measured data with the simulated results, and the reason of bore polygon for the product was analyzed. The model provides an effective research method for improving product quality and instructing technological design.