作　　者： ; ; ; ; ; ;

机构地区： 东北大学材料与冶金学院轧制技术及连轧自动化国家重点实验室

出　　处： 《电焊机》 2006年第8期60-62,共3页

摘　　要： 采用不同的点焊工艺参数对BH340钢板和St13钢板进行了点焊工艺实验,并对不同工艺条件下的2种钢板的焊接接头进行了组织、性能对比分析。结果表明:在试验范围内,焊接电流为4kA,焊接时间为10周波时,BH340钢板点焊性能较好;在相同的焊接工艺参数下,BH340钢板焊接接头的显微组织比St13细小且均匀,焊接接头的拉剪载荷明显高于St13;点焊后St13钢板和BIF340钢板疲劳特性差异不大。 Welding on BH340 and St13 in different spot welding processes are researched and investigated ,which comparison for the structure and properly are analyzed.The results show that the welding featare on BH340 is hetter when welding electric current is 4KA and welding time is 10 cycle;In the same welding process parameler,the microstructure of seam is smaller and more even than that of St13 ;the differences of the fatigue properties on BH340 and St13 after spot-welding is not apparent.

关 键 词： 高强度钢板 点焊

领　　域： [金属学及工艺]