The influence of the part geometry on the welding line displacement in case of tailor welded blanks

Résumé

The present work deals with numerical simulation related to formability of three parts having different geometry, as fallows: square shape, cylindrical shape and semispherical shape. The parts are made from tailor welded blanks, having the welding line as symmetry axis. During the forming process, due to different base materials of the tailor welded blanks, the welding line modifies its initial position. The current paper is trying to prove out the important role of the final geometry shape on the welding line displacement during the forming process. The Dynaform 5.6 software is used to simulate the forming process. The part obtained after each simulation is analyzed and measured to quantify the displacement of the welding line.