An investigation into the evolution of the deformation state in single point incremental forming

Absztrakt

Single point incremental sheet metal forming (SPIF) is a novel and flexible forming technology that has been emerged and spread its application for the production of various customized sheet metal parts. This alternative of incremental sheet metal forming (ISF) has gained a good reputation compared to the traditional forming methods in case of low production volume. However, the deformation state is still unclear in the different part regions. Therefore, in the current investigation, a finite element analysis has been devoted to study the evolution of the stress triaxiality during the SPIF process of pure aluminium alloy Al 1050. The triaxial state has strong dependence on the located cone-forming regions indicating a dominate stress state.