Numerical and experimental study on large deformation of thin-walled tube through hydroforging process

In order to form the thin-walled hollow parts with large deformation, a technology has been developed in the present study by combination of hydroforming with moving dies similar to forging process, known as a hydroforging technology. Based on the finite elements simulation, the process of hydroforging was investigated to avoid thinning, wrinkling, and bursting due to unreasonable selection of the internal pressure. The suitable loading path was discussed. The results from simulation keep a reasonable agreement with that from experiment.

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