Splicing method for reflection panel in honeycomb sandwich structure

Abstract

The invention relates to a splicing method for a reflection panel in a honeycomb sandwich structure. The method provided by the invention comprises the following steps: determining the shape and positioning mode of splicing seams of an aluminum plate, splicing and laying the sandwich structure layer by layer and repairing the splicing seams, wherein the splicing seams of the aluminum plate in a sandwich plate are in a Great Wall shape; after modeling, blanking figures are respectively obtained through expanding splicing curved surfaces; after the layout processing, a production blank is obtained; the sandwich structure which is spliced and laid side by side is the core course of manufacturing a sandwich plate; and the repairing of the splicing seams comprises the repairing for the splicing seams of a working plate and the simple shear splicing of a back plate. The method provided by the invention solves the problem that the manufacturing dimension of the panel is limited by the dimension of a raw material and can ensure that the profile accuracy of the working surface of the sandwich plate fully meets the design requirements; the rigidness of the panel can be maintained to the maximum limit through the transverse-longitudinal intersection of the splicing seams; and the repairing of the splicing seams can effectively repair the discontinuity of the working plate because the seams exist, ensures the electric properties of a reflection surface and improves the splicing intensity and tightness of the seams of the back plate.

Description

technical field [0001] The invention relates to a method for splicing reflective panels with a honeycomb sandwich structure, in particular to a method for splicing reflective panels with a super-large and high-precision sandwich structure, and belongs to the field of mechanical engineering / sheet forming. Background technique [0002] With the rapid development of modern communication and military technology, the requirements for the electrical performance of the antenna are getting higher and higher. Development in the direction of high precision. The total area of ​​the current ultra-large compact field reflecting surface has reached 200m 2 Above, the overall surface precision RMS (Root Mean Square) is required to be below 75μm, and the method of block manufacturing and overall assembly is used to build, and the area of ​​a single plate after block is 6.4m 2 , The surface accuracy RMS is required to be below 40μm, and the edge accuracy is ±0.2mm. However, due to the infl...

AI Technical Summary

Problems solved by technology

Modeling is carried out according to the position of the reflective surface in space, and the blank processing diagram of the aluminum plate is obtained by using the expansion algorithm of the space surface, so as to ensure high seam accuracy and the edge accuracy of the working surface contour after forming, and aim at the problems caused by the seam The problem of discontinuity on the surface of the panel is solved by filling with aluminum powder conductive glue and single-shear butt joint, realizing the goal of manufacturing high-quality, large-area, high-precision honeycomb sandwich structure reflective panels

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