朱少航,王楠楠,田浩楠,石红信,邱然锋,里中忍

• 1:河南科技大学材料科学与工程学院
• 2:中国民航飞行学院洛阳分院
• 3:龙门实验室
• 4:日本熊本大学

摘要(Abstract)：

以腿径为4、6和8 mm的钢质铆钉为单元件，以Q235低碳钢为基板、TA2钛为穿孔板进行了电阻单元焊。分析了焊接电流、焊接时间对接头抗剪载荷和十字抗拉载荷的影响。利用扫描电镜观察接头中各区域微观组织结构，探讨接头微观结构对接头性能的影响。结果表明：钛/低碳钢电阻单元焊接接头的抗剪载荷与十字抗拉载荷随焊接电流、焊接时间的增加呈现先增大后减小的趋势；采用4、6和8 mm腿径的钢质铆钉焊接时，Ti/Q235接头抗剪载荷达到最大时所需的电流分别为9、12和14 kA,最大抗剪载荷分别为6.63、10.07和13.00 kN,最大十字抗拉载荷分别为2.61、5.67和7.24 kN。铆钉腿与穿孔板TA2的界面处形成的反应层主要由Fe在Ti中固溶体与TiFe构成。

关键词(KeyWords)： 钛;低碳钢;电阻单元焊

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51875177);; 龙门实验室前沿探索课题(LMQYTSKT010);; 河南省国际科技合作项目(242102521037)

作者(Author): 朱少航,王楠楠,田浩楠,石红信,邱然锋,里中忍

DOI: 10.13289/j.issn.1009-6264.2024-0057

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