张柯柯,杜宜乐,邱然锋,石红信,李臣阳

• 1:河南科技大学材料科学与工程学院
• 2:洛阳瑞昌石油化工设备有限公司

摘要(Abstract)：

采用热补偿电阻点焊方法对A6061铝合金与Q235低碳钢进行焊接,探讨了焊接电流、电极压力对接头熔核尺寸和抗剪力的影响,观察分析了熔核界面区反应物形貌及分布等微观组织结构特征。试验结果表明,A6061铝合金与Q235低碳钢采用热补偿电阻点焊方法能在较低的焊接电流条件下获得具有较大熔核与较高抗剪力的点焊接头;接头熔核直径及抗剪力随焊接电流、电极压力的增大而增大;无飞溅条件下接头最大抗剪力为4.25 kN,对应的焊接电流为17.5 kA;接头界面处生成了主要由Fe2Al5和FeAl3构成的金属间化合物层。

关键词(KeyWords)： 铝合金;低碳钢;电阻点焊;强度;界面

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50774029);; 河南省科技攻关(112102210176)

作者(Author): 张柯柯,杜宜乐,邱然锋,石红信,李臣阳

DOI: 10.13289/j.issn.1009-6264.2012.12.013

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