At the Institute for Metal Forming Technology (Institut fuÈr Umformtechnik, IFU) of the University of Stuttgart (Germany), a hydroforming process was developed which is a combination of conventional deep drawing and deep drawing with hydraulic counter pressure. This process is shown in Figs. 10 and 11. The advantage of this process is the possibility of deep drawing with controlled metal flow into the cavity. In the following process the use of the hydraulic pressure makes it possible to have a die without a hard counter contour