热冲压高强钢点焊接头质量评价

Quality Evaluation of Hot Stamping High-strength Steel Spot Welded Joints

目前全球都在面临能源危机,节能降耗、减少成本展开生产活动成为关键。它希望满足安全性能要求,持续优化框架结构,减少对普通结构钢材的过量使用,而转向采用高比强度轻质金属(例如铝合金、镁合金)。制造过程中的关键技术——热冲压高强钢点焊接头技术。主要从高强钢点焊接的失效特性、焊接头特性展开研究。同时结合两种失效方法下的接头应力、疲劳性能实验方案技术内容进行进一步探究。

At present,the world is facing an energy crisis,energy saving,reduce consumption,reduce cost production activities become the key.It hopes to meet the safety performance requirements,continue to optimize the frame structure,reduce the excessive use of ordinary structural steel,and turn to use high specific strength light metal(e.g.aluminum alloy,magnesium alloy).Key technology in the manufacturing process——hot stamping high strength steel point welding head technology.Mainly on the failure characteristics and welding head characteristics of high strength steel point.The technical contents of the joint stress and fatigue performance experiment scheme under the two failure methods are further explored.