摩擦塞补焊技术研究现状及展望  

Present state and perspective on friction plug welding

作　　者：王国庆[1] 张丽娜[2] 朱瑞灿[2] 王贺[2] 赵衍华[2] WANG Guoqing ZHANG Lina ZHU Ruican WANG He ZHAO Yanhua(China Academy of Launch Vehicle Technology,Beijing lO0076,China Capital Aerospace Machinery Company, Beijing 100076, China)

机构地区：[1]中国运载火箭技术研究院,北京100076 [2]首都航天机械公司,北京100076

出　　处：《电焊机》2017年第1期17-25,共9页Electric Welding Machine

基　　金：北京市教育委员会2015年度创新能力提升计划项目(TJSHG201510017023);国家自然科学基金项目(51505035)

摘　　要：搅拌摩擦焊接技术在航空航天等领域得到了广泛的应用,但焊接后一般会留有"匙孔",影响产品整体结构性能,需要相应补焊手段解决。传统的熔焊修补会降低接头力学性能。介绍了三种等强固相摩擦塞补焊技术,阐述焊接原理,分析技术特点,介绍目前国内外研究和应用进展,指出摩擦塞补焊技术是搅拌摩擦焊接技术体系的重要组成部分,具有广阔的应用前景。Friction stir welding has been widely applied in aerospace industry because of its remarkable advantages. However, one of rare imperfections of the technique,keyhole at the weld terminus,does weaken the integral peffonnanee of the welded structure. Usually it needs to be closed by conducting repair methods. Conventional filsion repair can be an option if the degradation of joint properties is ignored. To achieve a high-quality FSW joint,a friction plug welding is introduced for the repair task. This paper gives description of three equi -strength , solid -stage friction plug weht repair methods,illustrates the working principles,analyzes the process features and presents the research and application statuses. It is concluded that friction plug weld repair is an essential part of FSW technological architecture and its application has a bright prospect.

关 键 词：摩擦塞补焊 顶锻式 拉拔式 惯性 

分 类 号：TG484[金属学及工艺—焊接]