兵工自动化2025，Vol.44Issue(8)：5-7,33,4.DOI:10.7690/bgzdh.2025.08.002
高粘度发射药成型模具变形分析
Deformation Analysis of Forming Die for High Viscosity Propellant
季丹丹 1毛长勇 2马涛 1岳显 1余海勇1
作者信息
- 1. 中国兵器装备集团自动化研究所有限公司智能制造事业部,四川 绵阳 621000
- 2. 中国北方化学研究院集团有限公司,北京 100000
- 折叠
摘要
Abstract
The structure of the extrusion die determines a series of parameters such as the diameter of the propellant bore and the arc thickness.The viscosity of the propellant and the elasticity of the mould needle can easily lead to the deformation of the mould needle in the forming process of the propellant,thus affecting the size and quality of the propellant products.Aiming at the problem that the deformation of die pin affects the size and quality of propellant products,the extrusion molding process of a porous propellant was simulated and analyzed based on the fluid-solid coupling method.The influence of die structure parameters on the deformation of the die pin was studied,and the orthogonal optimization design of the existing die was carried out.The results show that the molding section length has the greatest influence on the needle deformation,followed by the compression section height,and the shrinkage angle has the least influence;the needle deformation decreases with the increase of the shrinkage angle,and increases with the increase of the compression section height and the molding section length;the needle deformation of the optimized mold is reduced by 73.3%compared with that before optimization,and the effect is obvious.关键词
发射药/模具/变形/流固耦合Key words
propellant/mold/deformation/fluid-solid coupling分类
军事科技引用本文复制引用
季丹丹,毛长勇,马涛,岳显,余海勇..高粘度发射药成型模具变形分析[J].兵工自动化,2025,44(8):5-7,33,4.
