摘要
本文研究了汽车车身螺柱焊接工艺参数对焊接质量的影响,以0.8mm厚的CR3镀锌板为基体材料,采用3700号螺柱焊钉进行焊接试验,重点分析了不同焊接电流对焊接质量的影响。本文利用拉伸试验仪、分析了焊接后的焊接质量,利用金相显微镜对显微组织进行了分析研究。研究结果表明:在0.8mm厚的镀锌板进行螺柱焊接时,在提升高度为0.8mm情况下,最优的焊接电流为-800mA,焊接时间为50ms;其抗拉力为3.56KN。
This paper studies the influence of welding process parameters of automobile body studs on welding quality.With 0.8mm thick CR3 galvanized sheet as the base material,3700 stud welding studs are used for welding experiments.The article focuses on the analysis of the impact of quality of different welding currents.In this paper,the tensile tester is used to analyze the welding quality after welding,and the microstructure is analyzed and researched using a metallurgical microscope.The research results show that when stud welding is performed on a 0.8mm thick galvanized sheet,when the lifting height is 0.8mm,the optimal welding current is-800mA,the welding time is 50ms,and its tensile strength is 3.56KN.
作者
靳延鹏
卢文超
陆勇
季良
赵洪生
孔德群
Jin Yanpeng;Lu Wenchao;Lu Yong;Ji Liang;Zhao Hongsheng;Kong Dequn
出处
《时代汽车》
2021年第22期161-162,共2页
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关键词
汽车车身
螺柱焊
显微组织
力学性能
car body
stud welding
microstructure
mechanical properties
