Research on Resistance Spot Welding Property of Hot-stamping Quenched Steel Sheets

摘要：

　　22MnMoB hot-stamping quenched steel sheets were well welded together by power frequency spot welder with optimization of relevant welding parameters in this paper.According to the experiment results of welding spatter, maximum shearing force and the size of nugget, the effects of welding current, welding time and electrode pressure on weld property were advanced.The results show that while welding current, welding time and electrode pressure are respectively set as6.0~6.5kA, 0.5~0.7s and 4~7kN, the weld exhibits good mechanical property.The nugget diameter appears approximate linear relationship with mechanical property of weld and determines the fracture model of welds.The novel hot stamping steel sheets exhibit good welding property.The optimizing welding parameters can be used to instruct the practical production.

关键词： hot-stamping quenched steel sheets resistance spot welding maximum shearing force nugget diameter

作者: Junping Zhang Yi Feng Leifeng Song Guangyao Wang Qingsheng Jin

作者单位: China Automotive Engineering Research Institute CO.,LTD,Chongqing 401122,China

会议类型: 国际会议

会议名称: 2014 International Conference on Hot Stamping of UHSS(2014高强度钢热冲压成形国际会议)

会议地点: 重庆

会议语种:英文

页码: 359-364

在线出版日期: 2014-08-21（万方平台首次上网日期，不代表论文的发表时间）