Effects of Air Bending Parameters on Spingback Using Finite Element Analysis

Abstract:

Springback is a common phenomenon in air bending of sheet metal forming, caused by the elastic redistribution of the internal stresses during unloading. It has been recognized that springback is essential for the design of the air bending. Traditionally, the values of springback is obtained for air bending parameters from handbook tables or springback graphs. However, the handbook tables or springback graphs are obtained using experiments and it is a time consuming processes. In this paper, a finite element model has been used to analyze the air bending process. Some experiments are carried out on ST12 materials, and the finite element model is validated comparing with experiments. In the present research the influence of process variables such as punch radius, die radius and die on springback are discussed using finite element analysis. Thus, the presented results of this research provide a basis of design to improve forming quality.

• Periodical: Applied Mechanics and Materials (Volumes 423-426)
• Pages: 978-983
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.423-426.978
• Online since: September 2013
• Authors: Xie Li*
• Keywords: Air Bending, Bending Parameters, Experiment, Finite Element Analysis (FEA), Springback

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