The Effects of Friction on Bursting of Tubes in Corner Filling

Study of tube hydroforming in a trapezoid-sectional die

“…Sun et al [10] proposed a non-finite element model to analyze the strain distribution at the corner of a squaresectional part. Chen [11] proposed a two-dimensional FE model for the corner filling process in a square-sectional die and analyzed the effects of friction on the thickness distribution of the tube wall. Kridli et al [12] and Yuan et al [13] studied the effects of the strain-hardening exponent, the die corner radius and the initial tube wall thickness on the thickness variation at the corner.…”

On the Friction Effect on the Characteristics of Hydroformed Tube in a Square Section Die: Analytical, Numerical and Experimental Approaches

“…Despite all these advantages this technique presents some drawbacks such as expensive equipment, slow cycle time, and lack of extensive knowledge base for process and tool design [1]. So, numerous researches using analytical or finite element models and experiments have been carried out on tube hydroforming [2][3][4]. The success of tube hydroforming process depends on the material properties of the tube to be formed, the tube and dies geometries, and friction conditions.…”

Study of Localized Thinning of Copper Tube Hydroforming in Square Section Die: Effect of Friction Conditions

“…Nowadays, hydroforming is increasingly used for aeronautical and automotive applications because of its advantages such as weight reduction, part consolidation, lower tooling cost, improved structural strength and stiffness improvements, avoided secondary operations and reduced scrap [1].That is why numerous research works have been carried out on tube hydroforming using analytical medializations, numerical computations and experimental characterizations [2,3]. The success of such a process depends on the knowledge of the material properties of the tube, the dies geometries, and the friction conditions.…”