摘要
以AlSi12为中间层对A6061铝合金与Q235低碳钢进行了电阻点焊,分析了界面区金属间化合物层形貌及分布等微观组织结构特征,探讨了焊接电流、焊接时间与电极压力对接头熔核尺寸和抗剪力的影响。结果表明:接头熔核直径、抗剪力随焊接电流、焊接时间的增加而增加,随电极压力的增大而降低,所得接头抗剪力达到4.87 kN,中间过渡层的使用起到了抑制界面金属间化合物生长的效果。
The resistance spot welding of A6061 aluminum alloy and Q235 low carbon steel was carried out using AlSi12 as the intermediate layer, and the morphology and distribution of intermetallic compound layer in the interfacial zone were analyzed, and the effects of welding current, welding time and electrode pressure on nugget size and tensile shear load of the joint were investigated. The results show that the nugget diameter and tensile shear load of the joint increase with the increase of welding current and welding time, and decrease with the increase of electrode pressure, and the maximum tensile shear load of the joint reaches 4.87 kN. The intermediate transition layer inhibits the growth of intermetallic compounds at the interface.
作者
王楠楠
邱然锋
石红信
WANG Nan-nan;QIU Ran-feng;SHI Hong-xin(School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang 471023,China;Luoyang College,Civil Aviation Flight University of China,Luoyang 471001,China)
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2019年第1期155-160,共6页
Transactions of Materials and Heat Treatment
基金
国家自然科学基金(51875177)
河南省国际合作项目(182102410066)
河南省高校科技创新人才计划基金(16HASTIT050)
关键词
点焊
中间层
铝合金
钢
spot welding
insert
aluminum alloy
steel
