• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2021, Vol. 57 ›› Issue (20): 1-19.doi: 10.3901/JME.2021.20.001

• 仪器科学与技术 •    下一篇

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熔石英光学元件加工亚表面缺陷检测及抑制技术研究进展

陈明君1,2, 王会尧1, 程健1,2, 赵林杰1, 杨浩1, 刘启1, 谭超1, 尹朝阳1, 杨子灿1, 丁雯钰1   

  1. 1. 哈尔滨工业大学机电工程学院 哈尔滨 150001;
    2. 哈尔滨工业大学机器人技术与系统国家重点实验室 哈尔滨 150001
  • 收稿日期:2020-11-09 修回日期:2021-07-12 出版日期:2021-10-20 发布日期:2021-12-15
  • 通讯作者: 程健(通信作者),男,1987年出生,博士,副教授,博士研究生导师。主要研究方向为精密超精密加工及表面完整性评价技术。E-mail:cheng.826@hit.edu.cn
  • 作者简介:陈明君,男,1971年出生,博士,教授,博士研究生导师。主要研究方向为精密超精密加工、先进制造技术及微纳米制造技术。E-mail:chenmj@hit.edu.cn;王会尧,男,1997年出生,硕士研究生。主要研究方向为精密超精密加工及先进制造技术。E-mail:18941050266@163.com
  • 基金资助:
    国家自然科学基金(51775147,51705105)、基础加强(2019JCJQzDxx00)、科学挑战计划(TZ2016006-0503-01)、哈尔滨工业大学机器人技术与系统国家重点实验室自主课题(SKLRS201718A,SKLRS201803B)和中国科协“青年人才托举工程”(2018QNRC001)资助项目。

Progress in Detection and Suppression Techniques for Processing-induced Sub-surface Defects of Fused Silica Optical Elements

CHEN Mingjun1,2, WANG Huiyao1, CHENG Jian1,2, ZHAO Linjie1, YANG Hao1, LIU Qi1, TAN Chao1, YIN Zhaoyang1, YANG Zican1, DING Wenyu1   

  1. 1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001;
    2. State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001
  • Received:2020-11-09 Revised:2021-07-12 Online:2021-10-20 Published:2021-12-15

摘要: 熔石英材料因具有硬度大、热膨胀系数低、透射光谱范围广等良好的机械性能和热学、光学特性,广泛应用于国防、航天等领域中关键光学元件的制造。作为一种典型的硬脆材料,在传统的研磨抛光加工中,不可避免地会引入亚表面层的微裂纹、划痕等结构性缺陷,这些缺陷会严重降低熔石英元件在高功率激光使用环境下的激光损伤阈值,并影响其在高冲击载荷使用环境下的抗断裂损伤能力。从硬脆材料的磨削机理出发,对熔石英光学元件亚表面缺陷的产生机制、亚表面缺陷的检测技术、熔石英亚表面缺陷抑制技术的研究现状进行综述,重点对比针对加工亚表面缺陷的有损检测和无损检测技术的优缺点,探讨多种先进表面加工技术在抑制熔石英光学元件亚表面缺陷中的应用。希望为优化大口径、高精度、高质量熔石英光学元件加工工艺,并提升其在高功率激光、高冲击载荷等极端服役环境下使用性能、延缓其使用寿命提供有益参考。

关键词: 熔石英元件, 亚表面缺陷, 磨削机理, 检测技术, 缺陷抑制

Abstract: Since fused silica material possesses good mechanical properties, thermal and optical properties, such as high hardness, low coefficient of thermal expansion, and wide transmission spectrum, it is widely applied in manufacturing key optical components in the fields of national defense and aerospace. As a typical hard and brittle material, subsurface micro-cracks and scratches would be inevitably introduced in the traditional grinding and polishing process, which will seriously reduce the laser damage threshold of components employed in high-power laser environment and also affect the anti-fracture damage ability under extremely high impact load. Starting from the grinding mechanism of hard and brittle materials, this paper reviews the generation mechanism of sub-surface defects in fused silica optical components, the detection technology of sub-surface defects, and the suppression techniques of sub-surface defects in fused silica. The advantages and disadvantages of destructive and non-destructive detection techniques for processing-induced sub-surface defects are compared and the application of a variety of advanced surface processing techniques in suppressing sub-surface defects of fused silica optical components is discussed. This work is helpful in providing useful guidance for optimizing the processing technique of fused silica optical components with large-aperture, high-precision and high-quality, and improving their performance and service life when used in the extreme service environments such as extremely high power laser and high impact load.

Key words: fused silica optical elemen, subsurface defects, grinding mechanism, detection technology, suppression of defects

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