复合材料/钛合金胶接强度影响因素研究  

Study of Influencing Factors on Adhesion Strength of Composite/Titanium Alloys

作　　者：苏震宇 孙煜 SU Zhenyu;SUN Yu(AVIC Composite Co.,Ltd.,Beijing 101300,China)

机构地区：[1]中航复合材料有限责任公司,北京101300

出　　处：《航空制造技术》2023年第22期87-91,105,共6页Aeronautical Manufacturing Technology

基　　金：科技部国家重点研发计划(2022YFB3709100)。

摘　　要：立足于复合材料与钛合金胶接,从钛合金表面处理方式、胶层厚度等方面着手,对不同因素下复合材料结构/钛合金胶接胶层内部质量和胶接强度进行了研究。结果表明,不同工艺条件下复合材料/钛合金胶接试验件胶层内部质量均完好,但层合结构复合材料与钛合金胶接强度均高于编织结构复合材料;钛合金表面酸洗和喷砂处理较打磨处理更有助于复合材料结构/钛合金胶接,使用表面预处理剂处理钛合金胶接面可以显著提高胶接强度;胶层厚度对复合材料结构/钛合金胶接强度有较大影响。Based on the traditional laminated structure composite materials and titanium alloy bonding,the composite/titanium alloy bondline internal quality and bonding strength under different factors were studied from the aspects of titanium alloy surface treatment methods,adhesive layer thickness and other aspects.The results show that:the bondline internal quality of composite/titanium alloy adhesive test pieces are all intact while the bonding strength between the laminated structure composite and the titanium alloy is higher than that of the woven structure composite under different processes;the pickling and grit blasting on the surface of the titanium alloy is more conducive to the composite structure/titanium alloy than the polishing treatment,and the bonding strength can be significantly improved by using surface pretreatment agent to treat the bonding surface of titanium alloy;the thickness of the adhesive layer has a great influence on the bonding strength of the composite structure/titanium alloy.

关 键 词：层合结构 编织结构 表面处理 表面预处理剂 胶层厚度 胶接 

分 类 号：V25[一般工业技术—材料科学与工程]