含能材料2025，Vol.33Issue(4)：392-403,12.DOI:10.11943/CJEM2024210
固体推进剂3D打印单层堆叠过程工艺参数研究
Process Parameters of Single-Layer Stacking Process Through 3D Printing of Solid Propellants
王嘉炜 1史宏斌 1刘宣杰 2宋仕雄 3史佳伟 1王琪虎1
作者信息
- 1. 西安航天动力技术研究所,陕西 西安 710025
- 2. 北京航空航天大学,能源与动力工程学院,北京 100191
- 3. 航天动力技术研究院,陕西 西安 710025
- 折叠
摘要
Abstract
The process parameters have a direct impact on the 3D printing quality of solid propellant grains.To more reasonably adjust the 3D printing process parameters and improve printing quality,based on the single-layer stacking process,a numerical simulation method was employed to conduct an orthogonal experimental study on three influencing factors:extrusion speed,printing height,and printing temperature.The degree of influence of each factor was calculated through variance and range anal-ysis.The grey relational analysis method was adopted for comparison,and the optimal combination of process parameters was selected after comprehensively considering the printing accuracy of special points.A method for calculating the printing line spacing based on single-line cross-sectional data was proposed for the first time,and simulation and experimental verification were conducted.The results indicated that the extrusion speed had the greatest impact on printing quality.When the extrusion speed was set to 12 mm·s-1,the nozzle height was 1.2 mm,and the printing temperature was 55℃,the printed part exhibited optimal quality.After parameter adjustment,the tensile strength of the specimen increased from 0.21 MPa to 0.43 MPa,and the density rose from 1.43×103 kg·m-3 to 1.65×103 kg·m-3.Single-layer printing simulations and experiments demonstrated a signifi-cant improvement in molding quality after parameter adjustment.关键词
3D打印/单层堆叠/参数筛优/参数修正Key words
3D printing/single-layer stacking process/parameter optimization/parameter correction分类
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王嘉炜,史宏斌,刘宣杰,宋仕雄,史佳伟,王琪虎..固体推进剂3D打印单层堆叠过程工艺参数研究[J].含能材料,2025,33(4):392-403,12.
