S. Gawade

V. Nandedkar

Abstract

One of the sensitive features of the sheet metal forming is the elastic recovery at the time of unloading called springback. Sheet metals are prone to some amount of springback depending on elastic deformation. Obtaining the desired size and shape of the component and also design of die and punch depends on the knowledge of the amount of spring-back. So the accurate prediction of the springback is very important. The springback is affected by the factors such as sheet thickness, material properties, tooling geometry etc. In the present paper the effect of various parameters such as sheet thickness, ratio of die radius to sheet thickness i.e. R /t ratio, strength coefficient and strain hardening exponent on springback are studied for the U shape component without holes and with holes in it

Keywords- U bending, Springback, FEA, Sheet thickness, R /t ratio.