上海航天（中英文）2025，Vol.42Issue(1)：48-55,8.DOI:10.19328/j.cnki.2096-8655.2025.01.005
带内交叉筋筒段流动旋压成形技术
Flow Spinning Forming Technology for Cylinders with Inner Cross Bars
摘要
Abstract
Aiming at the problems of material thickening and long manufacturing process caused by existing cylinder splicing manufacturing methods for rocket tanks,a new process method of flow spinning forming for cylinders with bars is proposed.The coordination control mechanism of forming process and the precise forming control method for components are proved,and the prototype process and devices for forming cylinders with bars are developed.It is found that the multi-wheel spinning has more constraint points in the axial material,which increases the stiffness of the operating point of the spinning wheel,better inhibits the expansion phenomenon,and improves the uniform filling of the axial inner ribs of the grid bar.The average filling degree of three-turn wheel is improved by 4.27%compared with that of two-turn wheel.In this paper,the simplified aluminum alloy with the outer diameter of ϕ865 mm and the rib aspect ratio of 1∶1 is prepared by experiment for the first time,and a ϕ3 350 mm cylinder with inner cross bars is developed,which provides technical basis and theoretical basis for future rocket manufacturing.关键词
运载火箭贮箱/斜制交叉筋/工艺参数/多旋轮旋压/模具结构设计Key words
tank of launch vehicle/diagonal cross bar/process parameter/multi-wheel spinning/mold structure design分类
信息技术与安全科学引用本文复制引用
冯苏乐,徐兴中,武凯琦,杨学勤,彭赫力,张越,盛超叶,于忠奇..带内交叉筋筒段流动旋压成形技术[J].上海航天（中英文）,2025,42(1):48-55,8.基金项目
科技部重点研发计划资助项目(2021YFB3400900) （2021YFB3400900）
