Journal of Shanghai Jiao Tong University ›› 2019, Vol. 53 ›› Issue (1): 105-110.doi: 10.16183/j.cnki.jsjtu.2019.01.015

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Formability of Flange Constraint Spinning for Aluminum Cup Part

LIU Ruofan,YU Zhongqi,ZHAO Yixi,EVSYUKOV S A   

  1. 1. Shanghai Key Laboratory of Digital Manufacturing for Thin-Walled Structure, Shanghai Jiao Tong University, Shanghai 200240, China; 2. Faculty MT6, Bauman Moscow State Technical University, Moscow 105005, Russia
  • Online:2019-01-28 Published:2019-01-28

Abstract: In order to improve the spin-ability of AA2024-O, the limiting spinning ratios under the two different flange constraints (the single-side, the double-side) in a cup-shaped spinning were experimentally studied. In addition, the influence of the process parameters on the thickness of the spun part in single-side and double-side flange constraint spinning processes was analyzed by numerical simulation. The results show that the flange constraint method can increase the limiting spinning ratio compared with conventional spinning, and the double-side flange constraint method can increase more than the single-side flange constraint method; the thickness uniformity of the spun part in the double-side flange constraint forming is better than that in the single-side flange constraint spinning under the same conditions. At the same time, the friction coefficient at the blank-roller interfaces has little effect on thickness in the flange constraint methods, and the thickness first decreases and then stabilizes with increasing of the gap value between the blank and rollers in the double-side flange constraint spinning.

Key words: aluminum alloy, metal spinning, flange constraint, cup part, formability

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