...Taekwang Ha; Torgeir Welo; Geir Ringen; Jyhwen Wang Springback is one of the factors that causes decreased product quality in tube bending; 2D and 3D stretch bending can be used to manufacture a complex geometry of a tube with springback reduction. For a nonlinear springback problem in tube bending...

...Taekwang Ha; Torgeir Welo; Geir Ringen; Jyhwen Wang In profile bending, the geometrical defect that reduces dimensional quality is mainly due to springback. While predicting dimensions after bending is important for quality control, many factors during bending cause difficulty in springback...

... bending compared with the traditional method. In this paper, the theoretical and simulation models of the bending and springback phenomenon for convex-shaped sheet metals are implemented. Several heat-assisted incremental bending experiments are carried out under different conditions...

...Pankaj Kumar Sharma; Vijay Gautam; Atul Kumar Agrawal The present work deals with the development of an analytical model incorporating the effects of anisotropy and strain hardening to predict the springback in V-bending of two-ply sheet metal using a punch profile radius of 15 mm and included...

... ε av , kN/m — — 58.214 172.82 ε rel , % — — 9.9749 16.621 ε ¯ a v , kN/m — — −39.458 −172.72 σ ε ¯ a v , kN/m — — 5.8406 9.4727 Fig. 21 Comparison of results for the springback angle between analytical model...

...Qiongyao Peng; Xiongqi Peng; Yinjun Wang; Tao Wang Numerical analysis comprised three steps. First, bending process was simulated with implicit algorithm which was the most convenient way to directly connect the bending step with the subsequent springback step in abaqus hitherto. It avoids...

... results reduce from 5924 mm to 199 mm, and the simulation springback rates with filler reduce from 0.92% to 0.15%. It is proved that high geometric accuracy of the integral panels can be obtained by using filling roll bending process. integral panel filler roll bending numerical simulation...

...P.-A. Eggertsen; K. Mattiasson; J. Hertzman The springback phenomenon is defined as elastic recovery of the stresses produced during the forming of a material. An accurate prediction of the springback puts high demands on the material modeling during the forming simulation, as well as during...

...Hyunok Kim; Ninad Nargundkar; Taylan Altan In the fabrication industry, one of the critical challenges is to maintain close geometric tolerances in finished products, particularly in the air bending process. In many cases, this problem is related to springback and plastic elongation/compression...