Three-dimensional surface flexible roll bending technology and its numerical simulation

Three-dimensional surface flexible roll bending was introduced and compared with traditional roll bending and multipoint forming. The flexible roll bending equipment was researched and the corresponding experimental equipment was developed. A finite element model of flexible roll bending was established to simulate the forming process and satisfactory simulated results were gained. The flexible roll bending of sheet metals made of two kinds of materials was simulated and their different forming effects were analyzed.