Effect of sheet thickness and R/t ratio on Springback in sheet metal forming

Abstract

 The forming process is the process in which the sheet is formed into desired shape. Sheet metal forming processes are very widely used by automotive industry, home utensil manufacturing industry etc. One of the problems associated with the sheet metal forming process is the springback. Springback is a complex phenomenon as it depends on many process parameters such as die radius, tooling geometry etc. and material properties such as sheet thickness, strength coefficient, strain hardening exponent etc. In this paper the effect of sheet thickness and R/t ration on springback is studied for the material IS513D both by the experimental and FEA method and their results are compared.