赵培峰,赵江辉,石红信,邱然锋

• 1:河南科技大学材料科学与工程学院
• 2:有色金属共性技术河南省协同创新中心

摘要(Abstract)：

以腿径为6 mm的铝质铆钉为单元件对铝合金A6061与低碳钢Q235进行电阻单元焊，并利用扫描电镜对接头界面区域进行了组织观察，研究了焊接电流、焊接时间对接头抗剪载荷和十字抗拉载荷的影响。结果表明：焊接电流大于18 kA时，靠近熔核的铆钉腿与上板钢的界面、上板钢与下板铝合金间界面生成了金属间化合物层。随着焊接电流增大、焊接时间的增加，接头的抗剪载荷和十字抗拉载荷均呈先增大后下降的变化趋势；当焊接电流为26 kA、焊接时间为300 ms、电极压力为3.1 kN时，接头的抗剪载荷达到最大，其值约为5.86 kN。

关键词(KeyWords)： 铝合金;钢;电阻单元焊

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51875177);; 河南省科技攻关项目(222102220067)

作者(Author): 赵培峰,赵江辉,石红信,邱然锋

DOI: 10.13289/j.issn.1009-6264.2022-0635

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