Design and Fabrication of Extremely Lightweight Truss-Structured Metal Mirrors

doi:10.3390/ma15134562

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Design and Fabrication of Extremely Lightweight Truss-Structured Metal Mirrors
	C. Liu; K. Xu; Y. Q. Zhang; H. F. Hu; X. P. Tao; Z. Y. Zhang; W. J. Deng and X. J. Zhang
刊名	Materials
	2022
卷号	15 期号:13 页码:12
DOI	10.3390/ma15134562
英文摘要	Three-dimensional printing, also called additive manufacturing (AM), offers a new vision for optical components in terms of weight reduction and strength improvement. A truss, which is a triangulated system of members that are structured and connected in such a way that they mainly bear axial force, is commonly used in steel structures to improve stiffness and reduce weight. Combining these two technologies, an extremely lightweight truss-structured mirror was proposed. First, the finite element analyses (FEA) on surface shape deviation and modal properties were carried out. Results showed that the mirrors had sufficient stiffness and a high weight reduction of up to 85%. In order to verify their performance, the truss-structured mirror blanks were fabricated with AM technology. After that, both the preprocessing and the postprocessing of the mirrors were carried out. The results show that without NiP coating, a surface shape deviation of 0.353 lambda (PV) and 0.028 lambda (RMS) (lambda = 632.8 nm) with a roughness of Ra 2.8 nm, could be achieved. Therefore, the truss-structured mirrors in this study have the characteristics of being extremely lightweight and having improved stiffness as well as strong temperature stability.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/66522]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	C. Liu,K. Xu,Y. Q. Zhang,et al. Design and Fabrication of Extremely Lightweight Truss-Structured Metal Mirrors[J]. Materials,2022,15(13):12.
APA	C. Liu.,K. Xu.,Y. Q. Zhang.,H. F. Hu.,X. P. Tao.,...&W. J. Deng and X. J. Zhang.(2022).Design and Fabrication of Extremely Lightweight Truss-Structured Metal Mirrors.Materials,15(13),12.
MLA	C. Liu,et al."Design and Fabrication of Extremely Lightweight Truss-Structured Metal Mirrors".Materials 15.13(2022):12.