Bending is one of the non-cutting sheet metal forming processes and is often also referred to as edging or bending. In this process, a sheet metal plate is formed with the help of a press brake and by applying mechanical force. A press brake has an upper tool (punch) that is pressed into a lower tool (die). By lowering the punch, the intervening sheet metal is bent into the desired shape. To make the bending process as efficient as possible, the sheet to be bent is placed against a stop. Bending processes can be simulated with the aid of the CNC control, allowing the optimum plunge depths to be planned even without trial bends. In addition to angles, radii can also be bent on a modern press brake.