电铸镍微结构表面与复材胶结强度研究  

Study on the Bonding Strength of Electroformed Nickel Microstructure Surface and Composite

作　　者：施棋辉 朱增伟[1] SHI Qihui;ZHU Zengwei(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,南京210016

出　　处：《有色金属工程》2023年第5期39-45,共7页Nonferrous Metals Engineering

基　　金：中央高校基本科研业务费专项资金资助项目(ILA22074)。

摘　　要：直升机复材旋翼桨尖处常使用镍包片来对机翼进行保护。镍表面与复合材料的连接性能不佳,在使用时稳定性不能达到预期效果。在阴极表面进行绝缘油墨喷涂、激光烧蚀,构造出微结构,随后在其表面进行电铸镍,最终获得具有毛化内表面的镍片,然后使用该镍片制作CFRP/Ni接头。和没有经过内表面毛化处理的镍片相比,接头的结合强度最高提高了162.4%。结果表明,通过复制阴极上微结构形貌的方法得到的镍片,与未经过任何表面处理的镍片相比,制备的接头结合强度大大提高。此外,通过对被破坏的CFRP/Ni接头表面进行观察,发现结合强度与微结构和胶黏剂的互锁面积成正比。通过提高单位面积上微结构与胶黏接的互锁面积比例,能够提高黏结强度。Nickel cladding is used at the tip of helicopter composite rotor to protect the wing.The connection performance between nickel surface and composite material is poor,and the use in some high-speed occasions is limited.In this paper,insulating ink spraying and laser ablation are carried out on the cathode surface to construct microstructure,and then nickel is electroformed on its surface to obtain a nickel sheet with a textured inner surface,and then CFRP/Ni joints are made with the nickel sheet.Compared with the nickel sheet without inner surface texturing treatment,the bonding strength of the joint is improved by 162.4%.It has been proved that the bonding strength of the nickel sheet prepared by copying the microstructure morphology on the cathode is greatly improved compared with the nickel sheet without any surface treatment.In addition,it was found that the bonding strength was related to the interlocking area of microstructure and adhesive by observing the damaged CFRP/Ni joint surface.The bonding strength can be improved to some extent by increasing the proportion of interlocking area between microstructure and adhesive bonding on unit area.

关 键 词：电铸镍 毛化 胶黏剂粘合 机械互锁 

分 类 号：TG49[金属学及工艺—焊接]