Design And Simulation Of Three Dimensional Bending Machine

In sheet metal forming, a simple shape profile is formed between tools or dies to obtain a complex geometry with the properties and desired tolerances. Nowadays, three-dimensional U-bending process is widely applied in many manufacturing industries, that it could be fabricated with a low production cost. However, after three-dimensional U-bending process, it usually produces spring back problem, little scrap, high percentage of deflection and change of the characteristic of the sheet metal. As a result, three-dimensional U-bending machines is designed and develop with a minimum amount of errors. Furthermore, Finite Element Method (FEM) with commercial software CATIA V5, computer based simulation is an absolute necessity to check the errors and the effects of the process parameters. A study of the principle variables of the sheet metal forming processes and their interactions is essential for this project. These variables include the flow behavior and formability of the formed sheet material under processing conditions, material, coatings and geometry of the die, friction and lubrication, the mechanics of the deformation, stresses, strains and forces, and last are characteristics of the specimen forming presses and tooling