SPRING BACK ANALYSIS OF PERFORATED STEEL SHEET METAL USING FINITE ELEMENT METHOD

Sagar Uniyal, Anit Jain, Lalitkumar Soni, G Venkatachalam
International Journal of Research in Science and Technology   unpublished
Sheets are deformed to required shapes by plastic bending with the help of punch and die set in sheet metal working. However, after withdrawing the applied load, the contour assumes a different shape than that of die because of release of elastic stress in the metal. This elastic strain recovery is commonly called as springback. Springback effect is a major cause of concern for metal forming industries which leads to inaccuracies in final product produced and eventually leads to problems in
more » ... to problems in assembly. This paper deals with spring back analysis of perforated steel sheet metal having circular holes arranged in square pattern using finite element analysis. The modelling of tools and blank are carried out in SolidWorks, meshing is carried out in HyperMesh and the analysis is carried out in Ansys Workbench to study the springback effect. An attempt is made to study the effect of various parameters like percentage of open area, hole size and blank thickness on springback of formed perforated steel.
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