F Khoshsima - Master of Science in Mechanical Engineering at Iranian Aluminum Company (IRALCO), Arak, Iran
M Chegeni - School of Engineering and Hi-Tech, Iran University of Industries and Mines, Iran
SV Mohammadi - School of Engineering and Hi-Tech, Iran University of Industries and Mines, Iran
H Nayebi - Bachelor of Science in Mechanical Engineering at Iranian Aluminum Company (IRALCO), Arak, Iran

Air bending is one of the most common processes in sheet metal forming. Many researchers have been carried on mathematical analysis of this process. Theoretical procedures were formed based on some assumptions. These assumptions may lead the analysis to error. Mathematical approach aims to make connection between geometrical parameters, such as punch and die radius and punch stroke, and mechanical parameters, such as stress and strain, moment and curvature distributions. In present paper analytical approaches are discussed and FEM model of air bending process is performed. To evaluate mathematical strategies, results of FEM simulation will be compared to those emerged from mathematical approaches

Mathematical model, Air bending, FEM