Journal
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
Volume 30, Issue 3, Pages 487-503Publisher
SPRINGER
DOI: 10.1007/s42243-022-00879-0
Keywords
Free bending; Die structure parameter; Forming quality; Numerical simulation; Tube
Categories
Ask authors/readers for more resources
The free bending dies have a significant impact on the plastic deformation behavior and forming quality of the tube. In this study, the evolution law of the deformation behavior of the tube with die structure parameters was investigated, and the free bending die parameters were optimized. Free bending experiments and numerical simulations were conducted to verify the reliability of the numerical simulation method. The distance between the center point of the bending die and the front end of the guider was found to have a more pronounced influence on the forming quality of the bent tube compared to the fillet of the guider.
The bending section of tube between the bending die and the guider is in a less constrained state during the free bending process. The free bending dies have the important impact on the plastic deformation behavior and the forming quality of tube. To study the evolution law of the deformation behavior of tube with the die structure parameters and optimize the free bending die parameters, the free bending experiments and the corresponding numerical simulations were carried out. The design principle of free bending die was illustrated. The free bending experiment was conducted to verify the reliability of the numerical simulation method. Based on the numerical simulation results, the influence of the distance between the center point of bending die and the front end of guider on the forming quality of bent tube is more obvious than that of the fillet of guider. However, the fillet of bending die hardly affects the stress and strain distribution and the evolution of the wall thickness. Finally, the free bending experiments with the newly determined free bending dies were conducted. The ultimate bending radius of bent tube is reduced and the forming quality is improved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available