5A06铝合金预拉伸应力对焊接变形的影响  

Influence of Pre Tensile Stress on Welding Deformation of 5A06 Aluminum Alloy

作　　者：胥锴[1,2,3] 张书权 王立跃 戈军委[4] 付书豪 Xu Kai;Zhang Shuquan;Wang Liyue;Ge Junwei;Fu Shuhao(Anhui Technical College of Mechanical and Electrical Engineering,Wuhu City,Anhui Procince 241000;Wuhu Intelligent Welding Robot Engineering Technology Research Center,Wuhu City,Anhui Procince 241000;Wuhu Engineering Research Center for Laser Additive Manufacturing of Metal Matrix Composites,Wuhu City,Anhui province 241000;Guizhou Aerospace Tianma Electromechanical S&T Co.,Ltd.,Zunyi City,Guizhou Province 563000)

机构地区：[1]安徽机电职业技术学院,安徽芜湖241000 [2]芜湖市智能焊接机器人工程技术研究中心,安徽芜湖241000 [3]芜湖市金属基复合材料激光增材制造工程技术研究中心,安徽芜湖241000 [4]贵州航天天马机电科技有限公司,贵州遵义563000

出　　处：《黄河科技学院学报》2025年第2期55-60,共6页Journal of Huanghe S&T College

基　　金：安徽省高校自然科学重点研究项目(2023AH052691);贵州省科技计划项目(黔科合支撑[2021]一般337)。

摘　　要：厚度为2mm和4mm铝合金试板在预拉伸应力作用下进行焊接试验,对焊接中预拉伸力采用测力计进行了测量,对焊后试板挠曲变形量和平面变形量进行了测定,展开了预拉伸应力演变规律的研究,探讨了预拉伸应力对铝合金焊接变形的影响。结果表明:在一个焊接周期中,预拉伸应力呈波浪变化,先减小再变大;试板焊后挠曲变形量和平面变形量随着预拉伸应力的增加而减小,在相同预拉伸应力作用下,4mm厚的铝合金试板控制焊接变形的效果比2mm厚的试板明显得多。The aluminum alloy test plates with thickness of 2mm and 4mm were welded under pre-tension stress,and the pre-tension force in welding was measured by dynamometer,and the flexural deformation and plane deformation of the test plates after welding were measured,and the evolution law of pre-tension stress was studied,and the influence of pre-tension stress on the welding deformation of aluminum alloy was discussed.The results show that in a welding cycle,the pre-tension stress changes in waves,which first decreases and then increases;After welding,the flexural deformation and plane deformation of the test plate decrease with the increase of pre-tension stress.Under the same pre-tension stress,the effect of controlling welding deformation of 4mm thick aluminum alloy test plate is much more than that of 2mm thick test plate.

关 键 词：预拉伸焊接法 预拉伸应力 演变规律 焊接变形 

分 类 号：TG404[金属学及工艺—焊接]