法兰约束条件下铝合金杯形件的旋压成形性能

doi:10.16183/j.cnki.jsjtu.2019.01.015

上海交通大学学报 ›› 2019, Vol. 53 ›› Issue (1): 105-110.doi: 10.16183/j.cnki.jsjtu.2019.01.015

法兰约束条件下铝合金杯形件的旋压成形性能

刘若凡1，于忠奇1，赵亦希1，EVSYUKOV S A2

1. 上海交通大学上海市复杂薄板结构数字化制造重点实验室，上海 200240； 2. 莫斯科国立鲍曼技术大学MT6系, 莫斯科 105005

出版日期:2019-01-28 发布日期:2019-01-28
通讯作者: 于忠奇，男，副教授，电话（Tel.）：021-34206785；E-mail：yuzhq@sjtu.edu.cn.
作者简介:刘若凡（1993-），男，内蒙古赤峰市人，硕士生，主要从事铝合金旋压性能与工艺研究.
基金资助:
国家自然科学基金(51675333，51790175)，国家重点基础研究发展规划(973)课题（2014CB046601）

Formability of Flange Constraint Spinning for Aluminum Cup Part

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

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

摘要/Abstract

摘要： 为了提高铝合金2024-O的旋压成形性能，通过试验研究了2种法兰约束(单边和双边)条件下杯形件的极限旋压比，并通过数值模拟研究了单边和双边法兰约束旋压成形中工艺参数对构件厚度的影响.结果表明：相对于传统的自由边旋压成形工艺，法兰约束旋压成形工艺可以提高极限旋压比，并且双边法兰约束比单边法兰约束的效果更佳；在相同的工艺条件下，双边法兰约束的构件壁厚比单边法兰约束的构件壁厚更均匀；在法兰约束的旋压成形中，板料与托辊(或旋轮端面)间的摩擦系数对构件壁厚几乎没有影响；随着旋轮端面与托辊的约束界面间隙增加，双边法兰约束的构件壁厚先减小，而后增大并趋于稳定.

关键词: 铝合金, 旋压, 法兰约束, 杯形件, 成形性能

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

中图分类号:

TG 386.3

刘若凡, 于忠奇, 赵亦希, EVSYUKOV S A. 法兰约束条件下铝合金杯形件的旋压成形性能[J]. 上海交通大学学报, 2019, 53(1): 105-110.

LIU Ruofan, YU Zhongqi, ZHAO Yixi, EVSYUKOV S A. Formability of Flange Constraint Spinning for Aluminum Cup Part[J]. Journal of Shanghai Jiao Tong University, 2019, 53(1): 105-110.

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法兰约束条件下铝合金杯形件的旋压成形性能

Formability of Flange Constraint Spinning for Aluminum Cup Part

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