碳纤维增强聚芳醚酮热塑性复合材料电阻焊接工艺研究  

Research on resistance welding technology of carbon fiber reinforced polyaryl ether ketone thermoplastic composites

作　　者：叶璐 张代军 李军 栗付平 陈祥宝 YE Lu;ZHANG Daijun;LI Jun;LI Fuping;CHEN Xiangbao(AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China;National Key Laboratory of Advanced Composites,Beijing 100095,China)

机构地区：[1]中国航发北京航空材料研究院,北京100095 [2]先进复合材料国防科技重点实验室,北京100095

出　　处：《复合材料科学与工程》2024年第8期45-52,共8页Composites Science and Engineering

基　　金：国家重点研发计划(2022YFB3709400);国家重点研发计划项目(2018YFA0703300);国家科技重大专项(2017-Ⅳ-0007-0044)。

摘　　要：本文研究了以不锈钢金属网为电阻加热元件的热塑性复合材料电阻焊接技术,考察了电阻焊接工艺参数如绝缘膜材质和规格、焊接功率、焊接时间、焊接压力等对焊接质量的影响,揭示了各参数之间的多重关联制约关系。通过工艺优化,解决了焊接过程中的边缘效应和电流泄漏等问题,实现了180 mm长焊缝的高质量焊接。研究结果表明,当绝缘层为0.1 mm厚的PEI膜,焊接压力为2.0 MPa时,焊接试样的单搭接剪切强度达到40.5 MPa,高于材料本征值。In this paper,the thermoplastic composite resistance welding technology using stainless steel wire mesh as resistance heating element was studied,and the influence of resistance welding process parameters such as material and specification of insulation film,welding power,welding time,welding pressure on welding quality was investigated,which disclosed the multiple correlation and restriction relationship between each parameter.Through process optimization,problems such as edge effect and current leakage in the welding process were solved,and 180 mm long weld with high quality was realized.The results show that when the insulating layer is 0.1 mm thick PEI film and the welding pressure is 2.0 MPa,the single lap shear strength of the welded sample reaches 40.5 MPa,which is higher than the intrinsic value of the material.

关 键 词：热塑性复合材料 电阻焊接 焊接工艺 单搭接剪切强度 

分 类 号：TB332[一般工业技术—材料科学与工程]