8090铝锂合金同种异种板自冲铆接头拉伸性能与剥离性能的研究  

Study on Tensile Properties and Peeling Properties of Self-piercing Riveted Joints of Similar and Dissimilar Sheets about 8090 Aluminum-Lithium Alloys

作　　者：程强[1] 何晓聪[1] 张先炼[1] 卢毅[1] 

机构地区：[1]昆明理工大学机电工程学院,云南昆明650500

出　　处：《热加工工艺》2016年第15期37-40,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(50965009);昆明理工大学分析测试基金项目(20150570)

摘　　要：为了探究8090铝锂合金自冲铆接头的拉伸与剥离性能,本文采用自冲铆接方法对8090铝锂合金(8090)同种及其与铜合金(H62)异种板材组合(8090+8090和H62+8090)进行单搭和T型连接,并对单搭和T型四组接头分别进行拉伸与剥离试验,运用MATLABR2014b软件对所得试验数据进行分析。结果表明:单搭接头拉伸试验的最大载荷均值皆大于材料组合相同的T型接头剥离试验的最大载荷均值。单搭接头能量吸收值皆小于T型接头能量吸收值。In order to study the properties of peeling and tensile of 8090 aluminum-lithium alloys self-pierce riveted joints, the connection of single lap-jointed joints and T-jointed joints of 8090 aluminum-lithium alloys （8090） with itself and dissimilar plate combination （8090＋8090 and H62＋8090） with copper alloys （H62） was carried out by using the method of self-piercing riveting. Tensile tests and peeling test of single lap-jointed joints and four groups of T-jointed joints were carried out respectively. Experimental data were analyzed by using MATLAB R2014b software. The results show that the mean value of maximum loads of single lap-jointed joints in tensile test is higher than that of the same material combination of T-jointed joints in peeling test. The energy absorption value of single lap-jointed joints is lesser than that of T-jointed joints.

关 键 词：8090 铝锂合金 自冲铆接 T 型接头 剥离试验 能量吸收 

分 类 号：TG306[金属学及工艺—金属压力加工] TH131.1[机械工程—机械制造及自动化]