Spring-back is one of the key problems in sheet metal forming industry. It occurs from the elastic recovery during unloading. Spring-back analysis of sheet metals with perforations is carried out in this work. Performance of perforated sheet metals depend on percentage of open area, number of holes, ligament ratio, hole size, hole shape, arrangement of hole pattern and thickness. Among the above, the influences of open area, ligament ratio and thickness on spring-back are considered in this paper. Commercial pure Aluminium is considered for the purpose. Sheet metal V-bending process is modeled. Finite Element Method is used to study the same. It has been found that spring-back increases with open area and ligament ratio but it decreases with thickness. © Research India Publications.