The initial die was developed and produced by Daimler Benz. Further dies for investigating piercing holes under inner pressure were developed and produced by BMW. Additionally Opel, Voest Alpine, VAW, OCAS and Alusuisse Singen support this project. So by the cooperation of eleven industrial companies and IFU it was possible to build this hydroforming system for about 1.2 million DM. All the cost were paid by the project partners. The development time from signing the contract to ®rst experimental parts formed in this new developed press was two years.