一种基于3D打印的遥感相机次镜遮光罩的制造技术

A Baffle Manufacturing Technology Based on 3D Printing for theSecondary Mirror Space Cameras

针对遥感相机多光阑次镜遮光罩结构采用传统复合材料成型工艺制造时存在的工艺难、周期长、成本高的问题,文章提出了一种基于3D打印的非金属次镜遮光罩制造技术。首先分析了该型次镜遮光罩的结构特点,然后介绍了其制造工艺方案并与传统方案进行了对比,最后对研制结果进行了讨论,并从产品力学试验及在轨应用效果方面进行了分析,结果显示该遮光罩制造技术将传统复杂的制造工艺程序化,不需要模具,成本低,制造周期短,在轨各项性能指标满足设计要求。

In view of the problems of difficult process,long cycle and high cost in the manufacture for the traditional composite material molding process,this paper proposes a manufacturing technology based on 3D printing using anon-metallicbaffle for the secondary mirror of space cameras.Firstly,the structure characteristics of the bafflewere analyzed,and then its manufacturing process scheme was introduced and compared with the traditional scheme.Finally,the development results,the product mechanical test and in-orbit application effect were discussed.The results show that the baffle manufacturing technology makes the traditional complex manufacturing process in sequence,and can meet the in-orbitperformance requirements,with no mold,low cost,and short manufacturing cycle.