Cold-shaping of thin glass foils as a method for mirror processing: from basic concepts to mass production of mirrors
Cold-shaping of thin glass foils as a method for mirror processing: from basic concepts to mass production of mirrors
复制标题
薄玻璃箔冷成型作为镜子加工方法：从基本概念到镜子的大规模生产
DOI：
10.1117/1.oe.52.5.051204
复制
发表时间：
2012
影响因子：
1.3
通讯作者：
R. Banham
中科院分区：
文献类型：
--
作者：
R. Canestrari;G. Pareschi;G. Parodi;F. Martelli;N. Missaglia;R. Banham
抽象的。我们提出了一种生产分段光学元件的方法。这是INAF-OsSeratorio Astronomico di Brera(INAF-OAB)开发的一种使用商业现成材料的工艺。它是基于通过在室温下发生的强制弯曲[冷成形(CS)]来成形薄玻璃箔的。然后将玻璃组装成夹层结构，以保持所施加的形状。这种反射镜的主要机械特征是重量轻、坚固耐用和环境坚固。成本和生产时间也很有竞争力。我们总结了过去几年在研发过程中取得的成果。我们用参数有限元分析的方法研究了结构构件的理论极限，并讨论了最常见的结构荷载对结构的影响。最后，描述了工艺实施、更重要的验证测试以及在该行业的批量生产。
Abstract. We present a method for the production of segmented optics. It is a process developed at INAF-Osservatorio Astronomico di Brera (INAF-OAB) employing commercial of-the-shelf materials. It is based on the shaping of thin glass foils by means of forced bending that occurs at room temperature [cold-shaping (CS)]. The glass is then assembled into a sandwich structure for retaining the imposed shape. The principal mechanical features of the mirrors are their low weight, rigidity and environmental robustness. The cost and production time also are competitive. We sum up the results achieved during research and development performed in the past years. We have investigated the theoretical limits of the structural components by means of parametric finite elements analyses; we also discuss the effects caused by the most common structural loads. Finally, the process implementation, the more significant validation tests and the mass production at the industry are described.