Application of the fracture-forming limit diagram for the analysis of cold formability of vanadium microalloyed steel 30MnVS6

This study investigates the cold formability of Vanadium microalloyed steel DIN 30MnVS6 by characterizing the material’s mechanical behavior at room temperature and constructing the fracture-forming limit diagram. A carefully selected set of tests was conducted to establish formability limits in terms of local deformations. Concurrently, finite element numerical analysis was employed to deepen the understanding of the influence of local stress and strain states on the material’s ability to deform without fracturing. The effects of geometric conditions, lubrication, and friction on formability were thoroughly investigated. Surface stress analysis highlighted the close relationship between formability and the stress state induced by process parameters. The construction of the fracture-forming limit diagram revealed that DIN 30MnVS6 exhibits formability comparable to steels widely used in cold forging. The steel proved to be a promising option for applications in this process, providing a viable alternative in terms of formability.