The elastic-plastic finite element model for the GH625 neck-spinning process was established by ABAQUS/Explicit software. The distribution of the stress

strain and the variation of the cross section of tube spinning process were analyzed. Furthermore

the effect of the spinning parameters on forming quality was obtained

such as axial feed rate

roller nose radius and roller installation angle. The spinning process results showed that the cross-sections in different zone of tube were generated different deformation. The results also reflected that the thickness increased with the increasing of the axial feed rate and roller nose radius. The roller installation angle had little influence on the tube thickness. The ellipticity became larger as the axial feed rate and roller nose radius increased. Located away from the free end

the ellipticity increased as the roller installation angle decreased. The distribution of the ellipticity was uneven when the roller was near the free end of the tube. Finally

the process parameters was selected based on the simulation: 0.25mm/r of axial feed rate

2-4mm of roller nose radius

90º of roller installation angle. The experiment was conducted and the accuracy quality tube was manufactured by neck-spinning experiment.