computer aided design of the tube hydroforming and dual hydroforming processes

this paper presents a control model of the hydroforming and the dual hydroforming process of atube. the theoretical part includes calculations to measure the change in tube thickness through thedeveloped process. the hydroforming and the dual hydroforming processes are simulated in thesolidsimulation software and the static and the dynamic simulations are modeled. theobtained results for the t-shape and the x-shape dies are compared and investigated. moreover, thedeveloped software in matlab calculates the process parameters. the inputs of the developedsoftware are the maximum internal pressure and the axial feed that could be adjusted with linear andnon-linear functions. furthermore, the material of the tube, as well as the tube’s parameters, such aslength, thickness, and radius, must to be given to the software. however, the properties of the tubecould automatically support the cad model. the software-generated results are the applied stress,displacement, and the energy through the process. this paper deals with the control strategy modeldeveloped in thesoftware packages. the obtained results are then subsequently compared with thoseof several experiments.