Numerical Simulation on Optimization of Process Parameters for Free Bending of Metal Tubes

Three-dimensional free bending is a new tube forming technology with continuous variable curvature. In order to improve the quality of tube, this paper studies principle three-dimensional system and numerical calculation moment in detail, it uses finite element simulation model mechanism process. The used simulate process copper influence key parameters on analyzed,the shape inner cavity die gap between are studied, distance guide column axial feed rate tubular parts has also been studied. optimum were determined by analysis.