含能材料2024，Vol.32Issue(4)：377-386,10.DOI:10.11943/CJEM2023110
喷头流道结构参数对高黏度含能材料直写成型3D打印挤出过程稳定性影响
Influence of Nozzle Structure Parameters on the Stability of DIW 3D Printing Extrusion Process
摘要
Abstract
To study the effects of extrusion system nozzle runner structural parameters(cone angle,outlet diameter,and molding section length)on the fluid flow of energy-containing material extrusion process in the direct-in-writing-forming(DIW)technolo-gy,an extrusion model of high-viscosity energy-containing materials based on the Polyflow Extrusion module was established,and was verified by extrusion experiments under the working conditions of direct-write 3D printing.The study analyzed the ef-fects of cone angle range(90°-130°),outlet diameter(0.75-2 mm),and molding section length(5-20 mm)on the extrusion process of high-viscosity energy-containing materials through the established model.The results show that the Polyflow Extrusion module can accurately simulate the flow behavior of composite energy-containing materials.When the cone angle is 100°,and the nozzle outlet diameter is between 1.5 mm and 1.75 mm,the extrusion process is relatively stable with small extrusion expan-sion.Additionally,as the length of the molding section grows,the required inlet pressure increases while the outlet expansion ef-fect decreases.关键词
直写成型(DIW)/黏弹性浆料/挤出装置/流道结构/挤出膨胀Key words
direct write forming(DIW)/viscoelastic slurry/extrusion device/flow channel structure/extrusion expansion分类
军事科技引用本文复制引用
丁治豪,杨伟涛,高宇晨,杨建兴,孔新,杨斌..喷头流道结构参数对高黏度含能材料直写成型3D打印挤出过程稳定性影响[J].含能材料,2024,32(4):377-386,10.基金项目
陕西省自然科学基金青年项目(2020JQ-596) （2020JQ-596）
陕西省教育厅青年项目(19JK0843) Shaanxi Provincial Natural Science Foundation Youth Program(No.2020JQ-596) （19JK0843）
Shaanxi Provincial Education Department Youth Program(No.19JK0843) （No.19JK0843）
