A method for manufacturing high-precision single-curved aluminum alloy skin
A manufacturing method and single-curved surface technology, applied in the field of precision machining, can solve the problems of inaccurate control of skin boundary size, reflective skin overlap, insufficient stretching range, etc. Potential safety hazards and the effect of reducing labor intensity
Active Publication Date: 2020-03-10
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology
Although this method uses the template comparison method to improve the boundary quality of skin cutting to a certain extent, the plasma cutting method is still manual control, and the control accuracy of the skin boundary size is not accurate enough, especially in international projects. In equipment such as high-precision antennas, due to the requirement for small gaps, problems such as overlapping, collisions, and uneven edge seams often occur in manually cut reflective skins.
In addition, the process of directly stretching the aluminum alloy plate in this method also has disadvantages, which may easily cause problems such as rebound after stretching and insufficient stretching range.
Method used
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[0034] In order to make it easier for those skilled in the art to understand the technical solution of this patent, and at the same time, in order to make the technical purpose, technical solution and beneficial effect of this patent clearer, and to fully support the protection scope of the claims, the following is a specific case in the form of this patent. The technical solution of the patent makes further and more detailed descriptions.
[0035] A method for manufacturing a high-precision single-curved aluminum alloy skin, comprising the following steps:
[0036] (1) To prepare the aluminum alloy sheet, the length and width of the sheet are required to exceed the maximum width and maximum length of the target skin and have a certain margin;
[0037] (2) Perform quenching heat treatment on the prepared aluminum alloy plate, thereby reducing the strength of the material and increasing the ductility of the material;
[0038] (3) Prepare the stretching machine and the stretchi...
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The invention discloses a method for manufacturing a high-precision single-curved aluminum alloy skin, which belongs to the technical field of skin processing. It includes the steps of preparing the aluminum alloy sheet, quenching heat treatment, stretching the sheet by stretching the tire, positioning the sheet by cutting the tire, and cutting the sheet by a numerical control cutting device. The method of the invention greatly improves the precision of skin processing, changes the previous manual positioning mode, improves the positioning efficiency and positioning accuracy of the skin, and is an important improvement to the prior art.
Description
technical field [0001] The invention relates to the technical field of precision processing of radar or antenna products in the form of reflective surfaces, in particular to a method for manufacturing a high-precision single-curved aluminum alloy skin. Background technique [0002] With the rapid development of our country in the fields of satellite communication and deep space exploration, radar and antenna have played an increasingly important role in it. The reflector structure of radar and antenna is mainly in the form of a single curved reflector. At present, the small reflector mainly considers the overall forming method of the reflector, while in the reflector of medium and large radar or antenna, the reflector is mainly assembled by splicing and assembling several small-area reflectors. The accuracy of the reflector directly affects the performance of the radar and antenna. There are many structural forms of the reflective surface, such as honeycomb sandwich struct...
Claims
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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 曹江涛孙东文孙祺任兵锐白鹤梁谦马冠群许名杰李成梁程志峰
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP