Hydroforming of bulging in the middle of a tube is focused on
and numerical simulations are carried out for the tube hydroforming process to provide reference for the practical forming experiments.Two main failure types in the process of hydroforming are wrinkling and bursting.Controlling of hydroforming process mainly depends on interior pressure and axial feeding.Simulation results are compared with experimental results in the same conditions and the agreement is obtained after analyzing different loading paths.The study shows the importance of loading path in the process(exp
interior pressure and axial feeding).It also indicates that the hydroforming process can be simulated with good reliability by computer.
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references
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