Forming limit diagram
![Definition of the deformation axes in forming limit diagram measurement](/Images/godic/202501/14/FormingLimit.svg4447.png")
![Probabilistic forming limit map](/Images/godic/202501/14/Probabilistic_forming_limit_map4447.jpg")
A forming limit diagram, also known as a forming limit curve, is used in sheet metal forming for predicting forming behaviour of sheet metal. The diagram attempts to provide a graphical description of material failure tests, such as a punched dome test.