Wang Qianglong, Wang Chong, Chen Yisheng, Cheng Luchao, Liu Chen, Niu Wenda, Zhao Jitong, Zhang Zhiyu, Liu Zhenyu
Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences, Changchun, China.
School of Optoelectronics, University of Chinese Academy of Sciences, Beijing, China.
3D Print Addit Manuf. 2024 Oct 22;11(5):1726-1737. doi: 10.1089/3dp.2023.0106. eCollection 2024 Oct.
This article presents a fabrication strategy on the structural design, optimization, additive manufacturing, and processing of metal mirror. Specifically, the study showcases the topology design of a metal mirror with diameter of 200 mm, the additive manufacturing of standard aluminum-based powder (AlSi10Mg), the high-precision single-point diamond turning process of the surface. By setting the feasible domain partition, a topology optimization model suitable for metal additive manufacturing and subsequent surface shaping was constructed, which takes into account the multi-load machining load conditions of single-point diamond turning technology and the material topology representation of standard support structures for additive manufacturing. The results demonstrate that the optimization model effectively suppresses the vibration phenomenon during single-point cutting. Furthermore, the results of the optical interferometer surface inspection confirm that the design and processing strategy for additively manufactured metal mirrors demonstrated in this study can be directly applied to infrared band reflective imaging optical systems.
本文介绍了一种关于金属镜结构设计、优化、增材制造及加工的制造策略。具体而言，该研究展示了直径为200毫米的金属镜的拓扑设计、标准铝基粉末（AlSi10Mg）的增材制造以及表面的高精度单点金刚石车削工艺。通过设置可行域划分，构建了一个适用于金属增材制造及后续表面成型的拓扑优化模型，该模型考虑了单点金刚石车削技术的多载荷加工负载条件以及增材制造标准支撑结构的材料拓扑表示。结果表明，该优化模型有效抑制了单点切削过程中的振动现象。此外，光学干涉仪表面检测结果证实，本研究中展示的增材制造金属镜的设计和加工策略可直接应用于红外波段反射成像光学系统。
