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| Resin Flow Guiding Application of Lightning-Strike-Protection Copper Mesh in the VARI Process for Aviation Composite Parts |
| LI Peixu，CHEN Ping， SU Jiazhi，CHEN Jiping，HAN Xiaoyong，GAO Longfei，LIU Weiping |
| ( Shanghai Aircraft Manufacturing Co., Ltd., Shanghai 201324, China) |
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Abstract With the widespread application of composite materials in aircraft structure, new demands on the lightning-
strike-protection for aviation composite parts have been raised. Meanwhile, represented by VARI process, the liquid
composite molding technology has caused more and more research attention. But the commonly used flow mesh will cause
material waste and quality problems. Combined with the two demands above, this article introduced the lightning-strikeprotection
copper mesh as flow media in the VARI manufacture process for aircraft composite parts in the surface application.
We integrated the resin flow guide and lightning-strike-protection functions of copper mesh and investigated its influence
on the resin flow, the relationship between the copper mesh layers and the resin permeability and the surface quality
of the cured composite parts. Our research has positive significance for enriching the technical means of VARI process,
improving the economical efficiency and the development of the application of VARI technology in aircraft structure.
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2017, 
