Experimental Studies and FEM Analysis Regarding the Influence of Geometric Parameters on Strain, Thickness Reduction and Forces in Incremental Forming Process

Abstract

The purpose of this study was to investigate the influence of geometrical parameters on the distribution of the principal strains and relative thinning and determination of forces in two directions in single point incremental forming process. For this purpose we have chosen a straight grove piece type. The parameters were taken into account are the punch diameter and step down in z direction. Were conducted the tests on two thickness sheet metal of the same material but having different mechanical characteristics. To determine the distribution of strains we used an optical method and to determine the forces a dynamometer was used. We have made two types of FEM analyses, one to determine the strains distribution and another to determine the forces