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： 《热加工工艺》 2005年第11期50-51,53,共3页

摘　　要： 采用不同点焊工艺参数对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两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钢板细小且均匀,焊接接头的拉剪载荷明显高于St13;点焊后St13钢板和BIF340钢板疲劳特性不存在太大差异。 The spot weldability of BH340 and Stl 3 steel in different spot welding processes were researched and investigated, the comparison of spot-welds structure and property on two steels were analysed. The results show that： weldability of BH340 is good when welding electric current is 4kA, welding time is 10 cycle; In the same welding process parameter, the microstructure of spot-welds is smaller and more even than St13; the differences of the fatigue properties on BH340 and Stl 3 after spot-welding is not apparent.

关 键 词： 高强度钢板 点焊

领　　域： [金属学及工艺] [一般工业技术] [金属学及工艺] [金属学及工艺]