A deep drawing press forms a part from a sheet metal blank. The part can be clamped in the die by a separate ram that allows the controlled flow of metal as a punch pushes the material into a cavity. The press can also be designed for reverse forming. Although definitions of deep drawing vary some it can certainly be called a fairly radical forming process of taking flat stock and forming cup like shapes.
Hydraulic deep draw presses are best suited for deep drawing applications because they offer precise control of ram speeds giving control over metal flow rates within the dies and preventing material from tearing or wrinkling. Hydraulic deep drawing presses can also utilize multi-step forming in addition to variable tonnage throughout the cycle.