锻压技术

基于有限元方法的弹壳拉深成形工艺结构参数研究

英文标题：Research on structural parameters of deep drawing process for cartridge case based on FEM

作者：邹宇王名川陈才杜忠华赵金库赵玉峰

分类号：TG386

出版年,卷(期):页码：2022,47(11):123-129

摘要：

为推进弹药智能制造的发展、提高枪弹制造水平，以小口径黄铜弹壳拉深成形工艺为研究对象，探究该工艺的最优模拟方法和最优结构参数组合。利用类拉深成形工艺的冲杯试验，基于有限元平台ABAQUS建立了不同模拟方法下的有限元模型，计算得到冲压力-位移曲线并与试验结果对比，确定了弹壳拉深成形工艺的最优模拟方法为二维静力学。基于二维静力学，研究了弹壳拉深成形工艺中3个主要的结构参数：凹模圆弧半径R、凹模锥角α、定径带长度h。结合正交试验得到了结构参数对工艺质量的影响趋势及结构参数的最优组合：R=7 mm、α=13.5°、h=3 mm，为后续弹药智能制造提供了参考。

In order to promote the development of intelligent manufacturing for ammunition and improve the manufacturing level of ammunition, for the deep drawing process of small caliber brass cartridge case, its optimal simulation method and structure parameters combination were studied, and based on the cupping test which is similar to deep drawing process, the finite element models of different simulation methods were established by finite element platform ABAQUS. Then, the impact pressure-displacement curves were calculated and compared with the test results, and the best simulation method of the deep drawing process for cartridge case was two-dimensional statics. Furthermore, based on the two-dimensional statics, three main structural parameters in the deep drawing process for cartridge case, such as die arc radius R, die cone angle α and sizing band length H, were studied. And combined with orthogonal test, the influences of the structural parameters on the process quality were obtained,and the optimized combination of structural parameters was confirmed that R=7 mm, α=13.5° and h=3 mm, which provided reference for the subsequent studies on the intelligent manufacturing of amunition.

基金项目：

国家自然科学基金青年科学基金项目（51901101，11802131）

作者简介：邹宇（1999-），男，硕士研究生，E-mail：zouyu120126223661@njust.edu.cn；通信作者：王名川（1987-），男，博士，讲师，E-mail：mingchuan.wang@njust.edu.cn

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