A molding method for preventing honeycomb compression deformation at the radius (R) corner of an L-shaped composite material.

CN117183409BActive Publication Date: 2026-05-26SPACE SEAHAWKS ZHENJIANG SPECIAL MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SPACE SEAHAWKS ZHENJIANG SPECIAL MATERIAL CO LTD
Filing Date
2023-09-19
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

During the co-bonding process of honeycomb sandwich structure components, the honeycomb material is prone to compressive deformation at the large radius of the flange, which leads to a decrease in strength and stability. Existing methods increase manufacturing complexity and cost.

Method used

By placing a pressure equalizing pad after aligning the sides of the honeycomb component with the sides of the base plate, and filling the flanged R-corner with unidirectional twisted yarn made of prepreg, combined with vacuum bag and autoclave curing treatment, the pressure is ensured to be evenly distributed, preventing the honeycomb component from slipping and deforming.

Benefits of technology

It effectively prevents the slippage and deformation of honeycomb components during the curing process, maintains the quality of honeycomb components, simplifies the manufacturing process, and reduces costs.

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Abstract

This invention discloses a molding method for preventing honeycomb compression deformation at the R-corner of L-shaped composite materials, comprising the following steps: S1, laying; S2, supporting the side of the honeycomb component; S3, encapsulation; S4, curing; S5, corner cutting; S6, panel bonding. The beneficial effects of this invention are: through stabilization treatment, laying and curing, and chamfering machining, this invention can effectively prevent slippage deformation of the honeycomb component, ensuring the quality of the honeycomb component after co-bonding. At the same time, the method of this invention is simple, economical, and applicable to the molding of honeycomb composite components at other flanged R-corners, and has important application prospects and practical value.
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