Grille structure and manufacturing method thereof

Abstract

The invention provides a grille structure, comprising a blade mechanism (1) and a frame mechanism (2), wherein the blade mechanism (1) and the frame mechanism (2) are mutually butted; the blade mechanism (1) comprises a first blade and a second blade; the first blade is provided with a first groove; the second blade is provided with a second groove; and the first groove and the second groove are matched. The invention also provides a preparation method of a grid structure. The invention provides a grille structure and a manufacturing method thereof. By providing a grille blade and bezel thickness free combination design and flexible bayonet assembly relationship, the design scheme of grille, such as stepped variable thickness, serialized thickness specification, solves the problems of narrow selection of frame and blade form and assembly relationship, realizes the optimization of grille structure design by combining aerodynamics and structural stress analysis, and greatly reduces the limitation of grille scheme design.

Description

technical field [0001] The present invention relates to a grid structure, in particular to a grid structure and a manufacturing method thereof. Background technique [0002] Research by Space X in the United States has shown that the returnable rocket launch system is feasible. During the return process, titanium alloy grille rudder surfaces are required, and the manufacturing method of integral casting is adopted. At present, there is no precedent for the development of this product in China. Therefore, relevant research on structural design and manufacturing methods has been carried out. [0003] The application numbers of the three patent documents are respectively 201610740254.6 (publication number CN106363375A), 201110203313.3 (publication number CN102248383A) and application number 201410332012.4 (publication number CN104174751A) all disclose the use of superplastic forming and diffusion bonding technology, which can utilize titanium alloy The thin plate produces a re...

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Problems solved by technology

[0004] However, there are still some inherent problems in these patent documents: First, the technology itself is unavoidable, such as low material utilization rate, size reduction caused by ultra-speed forming, incomplete welding of diffusion connection, and thermal cycle above 900 ° C. Second, the technical process is complicated, the threshold is high, and the adaptability and economy of the grille structure with inconsistent blade thickness specifications, inconsistent blade and frame angles, and large format sizes are significantly affected.

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