AN EXPERIMENTAL INVESTIGATION INTO THE STAMPING OF ELASTIC PLASTIC CIRCULAR PLATES

This paper reports the results of an experimental investigation into the deformation processes of circular plates pressed by cylindrical/hemi-spherical punches into conical dies, showing the variations of strain distribution, the development of deformation, the relationship between wrinkling loads and plate/punch dimensions, the springback, the wrinkling modes corresponding to critical loads and their effects on subsequent forming processes, and so on. Finally, the paper presents some useful information for manufacturing engineers on the designing of forming tools for sheet metals.