Micro stress and high precision forming technique for special-shaped light window

Su Ying; Xu Zengqi; Yang Haicheng; Shangguan Yongping; Zhang Yan; Xu Xiaolei; Liu Xuanmin; Guo Rui

doi:10.5768/JAO201839.0605001

Journal of Applied Optics > 2018 > 39(6): 880-884. > DOI: 10.5768/JAO201839.0605001

Su Ying, Xu Zengqi, Yang Haicheng, Shangguan Yongping, Zhang Yan, Xu Xiaolei, Liu Xuanmin, Guo Rui. Micro stress and high precision forming technique for special-shaped light window[J]. Journal of Applied Optics, 2018, 39(6): 880-884. DOI: 10.5768/JAO201839.0605001

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Micro stress and high precision forming technique for special-shaped light window

Xi'an Institution of Applied Optics, Xi'an 710065, China

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Received Date: August 12, 2018
Revised Date: October 09, 2018

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Abstract

Abstract

In view of the problems existing in the high precision forming of the special-shaped light window, the characteristics of the light window and the principle of the forming technology were introduced. Experimental researches were carried out from 4 key problems, such as the mirror protection, the position tooling design, the size measurement and compensation algorithm, the optimization of the milling parameters and so on. And the micro-stress precise lossless forming of the special-shaped light window was realized. Results show that the linear error is less than 0.03 mm, the two-dimensional angle error is less than 20″, the angle error of the inclined plane is less than 1.2′, and the surface defect is less than Ⅳ, which can meet the requirements of the stealth aircraft for special-shaped light window.
- special-shaped light window,
- forming,
- high precision,
- micro stress

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Micro stress and high precision forming technique for special-shaped light window