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A space high light weight rate aluminum-based reflector and its processing method

A processing method and mirror technology, applied in the field of space optical remote sensing, can solve the problems of difficult processing of mirror blanks, sensitive to changes in mirror surface shape, long processing cycle of mirror bodies, etc., achieving easy preparation and molding, good processing performance, The effect of shortening the processing cycle

Active Publication Date: 2018-03-13
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] In order to solve the problems of difficult processing of mirror blanks, long mirror body processing cycle, high cost, large deviation between mirror size and drawing requirements, and mirror surface shape is sensitive to changes in the external environment, the invention proposes an aluminum substrate with high space and light weight ratio. Mirror and its processing method

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  • A space high light weight rate aluminum-based reflector and its processing method
  • A space high light weight rate aluminum-based reflector and its processing method
  • A space high light weight rate aluminum-based reflector and its processing method

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] An aluminum-based reflector with a high space and light weight rate of the present invention is used to converge or diverge light to realize light path deflection. The mirror body 1 adopts a lightweight design, the back side 5 of the mirror body 1 is closed, and the side of the mirror body 1 is designed with Lightweight holes improve the structural rigidity and strength of the mirror body 1 . Such as Figure 1 to Figure 3 As shown, the mirror body 1 is mainly composed of six surfaces, namely a mirror surface 2 , two long sides 3 , two short sides 4 , and a back side 5 .

[0032] Such as figure 2 As shown, a plurality of lightweight holes-31 are processed on the two long sides 3 of the mirror body 1. The structures and sizes of the plurality of lightweight holes-31 are all the same, and the plurality of lightweight holes-31 are through holes. That i...

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Abstract

An aluminum-based reflector with high light weight in space and a processing method thereof, which belong to the field of space optical remote sensing, solve the problems of difficult processing of reflector blanks, long processing cycle of the mirror body, high cost, large deviation between the size of the reflector and the requirements of the drawing, and problems with the mirror surface. The surface shape is sensitive to changes in the external environment. The aluminum-based reflector with high lightweight rate in this space, the mirror body material is aluminum-based material; the back is closed, and there are lightweight holes on the two long sides and two short sides respectively; the lightweight holes are light-weighted by electric spark Holes are processed in a combination of hole and wire cutting. The invention has low processing difficulty, high production efficiency, short processing cycle and low cost, and at the same time, the rigidity and strength of the mirror body can be improved by increasing the thickness of the mirror body. The invention adopts a new structural form combining back sealing and side lightening, which improves the rigidity of the mirror body while reducing the weight of the mirror body, and the stiffness loss is small, thereby improving the sensitivity of the mirror surface shape to environmental changes.

Description

technical field [0001] The invention belongs to the technical field of space optical remote sensing, and in particular relates to an aluminum-based reflector with a high light weight rate in space and a processing method thereof. Background technique [0002] The space optical mirror is a key part of the space optical remote sensor, and its performance directly affects the imaging quality of the space optical remote sensor. Most of the space optical mirrors are made of silicon carbide, fused silica and other materials. These materials are brittle materials. There are great risks and difficulties in the process from blank preparation to parts processing. The development and processing cycle of the corresponding space optical mirrors is relatively short. Long, manufacturing and processing costs have increased; In addition, most of the light-weight forms of the space optical mirror body adopt the light-weight structure of the back, and most of the light-weight cavities are form...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23H5/04B23H7/02G02B5/08
CPCB23H5/04B23H7/02B23P15/00G02B5/08
Inventor 柴方茂辛宏伟樊延超朱延江李志来
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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