Numerical Simulation of Stagger Spinning of Cylindrical Part with Cross Inner Ribs

doi:10.16183/j.cnki.jsjtu.2020.326

Abstract

Abstract:

Flow spinning is an advantageous technology in forming thin-walled cylindrical parts, but for cylindrical parts with inner ribs,the height of the inner ribs that can be formed is limited. Aimed at the problem that the inner ribs are difficult to fill in such components, a numerical simulation model of staggered spinning of thin-walled cylindrical parts with cross inner ribs is established based on Abaqus, and the influence of the number of rollers on the filling of inner ribs is analyzed. The process test of the cylinder part with orthogonal inner ribs is conducted. The results show that in the staggered spinning process, increasing the number of rollers will reduce the diameter expansion of the aluminum alloy cylindrical part with inner ribs, and inhibit the axial flow of materials, leading to a higher geometric accuracy of the inner ribs. The comparison of the simulation results and the test results shows that the average error of the inner rib filling fullness of simulation result is 11.3%, and the simulation model has a good reliability.

Key words: staggered spinning, aluminum alloy, cylindrical parts with inner ribs, geometric accuracy, numerical simulation

CLC Number:

TG306

ZHOU Yu, ZHAO Yong, YU Zhongqi, ZHAO Yixi. Numerical Simulation of Stagger Spinning of Cylindrical Part with Cross Inner Ribs[J]. Journal of Shanghai Jiao Tong University, 2022, 56(1): 62-69.

Figures/Tables 16

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