THE COMPARATIVE STUDY OF DIE CUSHIONING FORCE IN U-BENDING PROCESS USING FEA

Avinash J, Hemanth.R

Abstract: This paper presents a study of the effect of the Die cushioning in the U-bending process. Different Die cushioning values are used to study their effect on distributions of stresses and strains in work piece. Two examples were analyzed one without Die cushion and another with Die cushion with Four values (10%, 20%,30% and 40% of bending load) were applied by Die cushioning on bottom of the workpiece.3D model of U-bending was used and analyzed by COSMOS. Low carbon steel ( IS 2062 GrB) was chosen to carry out the simulation. The results show that the Die cushion force has an effect on the center displacement and distribution of strains and stresses in final product.

Keywords: U-bending, Die cushioning, FEA, Low carbon steel

DOI: https://doi.org/10.15623/ijret.2014.0323009