A process used to reduce a parts’ flange radius which involves retracting the punch a little after the initial stroke without relieving the pressure. Also refers to rolling the metal where the axis of roll is parallel to the area that considered the “thickness”.

A type of process that is used to produce indented designs in a piece of metal. This is done through the use of a die with a cavity and a matching punch or matching die.

A drawing out process that uses a previously punched hole.