Texture inhomogeneity and the strain distribution in shear-spun steel tubes

Three-dimensional finite element analysis of tube spinning

“…In the past, a lot of experimental and analytical researches [1][2][3][4] were carried out and many theoretical models and analysis methods were put forward to investigate the displacement, stress and strain distribution, spinning force and spinning defects, etc., in tube spinning. Among the numerous analysis methods, the finite element method (FEM) is no doubt a powerful one and has been used extensively in recent researches [5][6][7].…”

Deformation history and the resultant microstructure and texture in backward tube spinning of Ti–6Al–2Zr–1Mo–1V

“…10 is {0 0 0 2} pole figures for the outer and inner surfaces. Different from the conclusion by Brandon et al (1980), a tendency to develop the texture with non-orthotropic symmetry is presented in the outer surface and also in the inner surface. However, when deformation is very large (for example, 84.8% after 10 passes), the texture in the inner surface shows somewhat mirror symmetry with respect to RD-plane (perpendicular to RD).…”

“…Shan et al (2000) found microstructure inhomogeneity across the thickness of workpiece. Brandon et al (1980) investigated the texture inhomogeneity and the strain distribution in steel tube spinning.…”

Experimental study and FEM analysis of redundant strains in flow forming of tubes

“…As, there are shear strains in more than one direction of the flow forming process, the cylindrical pin would not stay in a plane. In fact, thickness of the pin would not be uniform at any section (Brandon et al, 1980) and measurement of the shear strains is not possible in that way. This method is modified for flow forming of tubes in the work presented here.…”

“…His results were not quantitative and also the mechanism and history of shear strain was not studied. The through-thickness distribution of texture and its relation to the distribution of plastic strain have been studied by Brandon et al (1980). They inserted cylindrical pins into the material prior to tube spinning to study the shear strains by attention to their inclined profile.…”