The springback of a sheet metal part is the change of its shape after removing a forming tool. An accurate prediction of springback is very difficult because sheet metal undergoes a complicated deformation process during the forming process. These are the following types of springback when considering the geometry of the product and the forming regime: angular change, sidewall curl, and twist. The latter is the key issue of this paper. A new definition of twist springback is proposed having been tested on a referenced sheet metal part. An experimental device for twist springback testing has been designed and the effect of blank rolling direction on the twist was investigated for dual-phase (DP) sheet steel. Finite element method (FEM) results of twisting behaviour using AutoForm software for different material models were compared with the experimental and the correlation evaluation was performed.
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