摘要
铝合金胶接结构件在汽车车架轻量化上的运用越来越广泛,因此对铝合金6063胶接强度的研究具有十分重要的工业意义。而表面处理是影响铝合金胶接强度最重要的因素之一,故文中研究了不同的表面处理方式对铝合金6063胶接结构件胶接接头力学性能的影响。以铝合金6063胶接结构件单搭接头为研究对象,借助万能力学试验机通过拉伸剪切试验,以拉伸抗剪强度为胶接强度评价依据,探索铝合金6063胶接接头的力学性能变化规律和胶接接头的破坏规律。拉伸剪切试验结果和胶接接头破坏分析表明:铝合金6063胶接接头在拉伸剪切试验中出现了锯齿屈服现象;不同的表面处理方式对铝合金6063胶接结构件的拉剪强度有很大影响,机械打磨和酒精脱脂可以显著提高铝合金6063胶接接头的拉剪强度。
Aluminum alloy bonded structural parts were more and more widely used in lightweight automobile frame.Therefore,the research on the bonding strength of aluminum alloy 6063 was of great industrial significance.Surface treatment was one of the most important factors affecting the bonding strength of aluminum alloy.The effects of different surface treatment methods on the mechanical properties of bonded joints of aluminum alloy 6063 bonded structural parts were studied.In this paper,taking the single joint of aluminum alloy 6063 bonded structural parts for object,adopting the tensile shear test,taking the tensile shear strength as the judgment basis,explored the variation in performance of aluminum alloy 6063 bonding joints and the destruction rule of the glue joint.The tensile shear test results and the damage analysis of the bonded joints showed that aluminum alloy 6063 bonding joints occurred serrated yielding phenomenon in the tensile shear test.Different surface treatments on aluminum alloy 6063 had a great influence on tensile-shear strength,and mechanical polishing and skim could significantly improve tensile shear strength of aluminum alloy 6063 bonding joints.
作者
王亚娟
杨建华
WANG Ya-juan;YANG Jian-hua(School of Mechanical and Information Engineering,Shaanxi Energy Institute,Xianyang 712000,Shaanxi pro.,China;School of Architecture Engineering,Shaanxi Energy Institute,Xianyang 712000,Shaanxi pro.,China)
出处
《焊接技术》
2020年第1期19-25,5,共8页
Welding Technology
基金
国家自然科学基金资助项目(51705390)
西安工业大学流体润滑科研创新团队建设计划项目.
关键词
铝合金6063
胶接
表面处理
抗拉强度
接头破坏
aluminum alloy 6063
bonding
surface treatment
tensile strength
joint failure
