Development of Test Device for Springback Study in Sheet Metal Bending Operation

The paper demonstrates the process of development of a bending device for a springback study. The numerical analysis of a V-bending device work as well as its optimization and experimental verification are presented. The study was conducted for the samples made of S235 structural steel. The main difference between the proposed device and a well-known device for V-bending lies in sample fastening to the punch head and a larger die radius in relation to the sample thickness. The presented bending device is characterized by a larger springback angle, less dispersion of the results and lack of the sample reverse loading.