Springback Analysis in Reconfigurable Multipoint Forming of Thick Plates

Résumé

Reconfigurable multipoint forming (RMPF) is a flexible manufacturing technology which assures the production of different sheet metals parts with low costs. The main characteristic of the deformation method is given by the surface discrete design of the forming elements which materialize the continuous 3-D surface of the punch and die active working surfaces. The paper presents some conceptual models for multipoint forming dies, possible to could be used in ship industry. For some die-punch models, the dependence between the multipont
forming die configuration toward the springback are then discussed using FEM analysis. For this, the characteristic profiles coordinates of working surfaces are calculated. Based on the obtained results, it results that reconfigurable multipoint forming could be applied in practice for manufacturing large parts with complex geometry.