南京航空航天大学学报2025，Vol.57Issue(1)：34-44,11.DOI:10.16356/j.1005-2615.2025.01.003
砂型增材制造表面质量精准调控工艺
Precise Regulation Process of Surface Quality of Sand Mold Additive Manufacturing
摘要
Abstract
Aiming at the problems of poor forming accuracy and low surface quality in sand mold additive manufacturing,this paper systematically studies the relationship between printing process parameters and sand mold surface roughness,and verifies the feasibility of sand mold printing adaptive slicing for optimizing sand mold surface quality.The influence of resin content,layer thickness and sand mesh on sand surface roughness is studied by designing the response surface experiment of sand print with constant inclination angle,and the printing process parameters are optimized.The orthogonal test of sand print with variable inclination angle is designed to study the significance of layer thickness and print angle on sand surface roughness,and the impeller sand mold is selected to verify the adaptive slicing process.The results show that the surface quality of sand mold with constant angle is better when resin content is 2.08%,layer thickness is 0.3 mm and sand is 100/200 mesh.When the sand mold with curvature change in the vertical direction is printed,the printing angle has a great influence on the surface roughness of the sand sample.An adaptive slicing process is proposed to print the impeller sand mold.Compared with the sand mold prepared by traditional equal thickness stratification,the dimensional accuracy and surface roughness of the sand mold with adaptive layering are increased by about 51.03%and 30.11%.The basic process control research based on the surface roughness of sand mold printing is carried out.The relevant research conclusions are helpful to realize the high precision and high efficiency additive manufacturing of sand mold with complex structure.关键词
砂型增材制造/表面粗糙度/自适应切片/工艺优化/高精高效制造Key words
sand mold additive manufacturing/surface roughness/adaptive slicing/process optimization/high-precision and high-efficiency manufacturing分类
矿业与冶金引用本文复制引用
宋魏飞,单忠德,杨浩秦,任洪稳,闫丹丹,姜二彪..砂型增材制造表面质量精准调控工艺[J].南京航空航天大学学报,2025,57(1):34-44,11.基金项目
国家重点研发计划项目(2021YFB3401200) （2021YFB3401200）
装备预研专用技术项目(30104040302) （30104040302）
江苏省基础研究计划(自然科学基金)青年基金(BK20230885) （自然科学基金）
教育部可持续制造国际合作联合实验室,中央高校基本科研业务费(NG2024012). （NG2024012）
