Simulation of Tubular Hydroforming

摘要

The implementation of modern lightweight construction concepts results in a specification that emphasises the aspects of the uniform forming of large-scale parts as well as complex local geometric details. Among the techniques used for the aluminum forming in the automotive industry, the one that offers most possibilities for innovation and economic gains relates to the hydroforming tubular forming method. In this paper the hydroforming simulation is revisited and new developments are shown, focusing on the main features of the forming of tailor-welded blanks. Numerical investigations of tubular hydroforming processes, starting from tailor-welded tubes based on one butt welded joint (with a common diameter and different thickness), are carried out.