Papers by Keyword: Incremental Bending

Abstract: In this project, a rigid plastic Finite Element Method (FEM) simulator was developed for simulating the plastic flow material in rotary forming. The simulation result was able to predict the cup height of the final product up to an accuracy of 80% and the localized deformation which leads to failure in the deformation process. The workability of the aluminum disc was also studied to understand the material flow behavior under incremental bending and flow forming by utilizing a lathe machine.

Abstract: Bending in a V-die has been used to indicate the outcome of bending in cold roll forming, although little direct correlation has been performed. In this work direct comparison of the springback in both processes was performed using six samples of automotive steels in a conventional roll forming line where the transverse springback is measured. A bend of similar radius was formed in a V-die and the springback determined. In general, the springback in V-die forming was greater than in roll forming, in some cases by a factor of 2. The theoretical springback angle was determined for all steels using a simple and approximate analytical equation and compared to the experimental roll forming and bending results. While for the roll forming process good agreement was achieved the theoretical values significantly underestimated springback in the V-bending process.