Large residual stress occurs during the quenching process of hot-rolled seamless steel tubes, which results in bending, cracking, and ellipticity exceeding standards seriously affects quality tubes. In addition, generation mechanism tubes is different from that plates due to characteristics annular section. this research, finite element simulation method was used study with cooling intensities....

Mass flow inequality in the initial stage of tube processing can lead to eccentricity and micro- nano-structural changes that affect residual stress texture development. In this study, macro- micro-texture development copper tubes drawn with a tilted die was investigated using three methods: synchrotron, neutron diffraction, electron backscatter positions maximum minimum wall thickness tubes. U...

Cold drawing is widely applied in the industrial production of seamless tubes, employed for various mechanical applications. During pre-processing, deviations in tools and their adjustment lead to inhomogeneities in the geometry of the tubes and cause a gradient in residuals. In this paper a three dimensional finite element (3D-FE)-model is presented which was developed to calculate the change ...