热冲压成形钢22MnB5焊点断裂模式的研究  

A Study on the Fracture Models of Welds of Hot Stamping 22MnB5 Steel

作　　者：单梅[1] 计遥遥[1] 成昌晶 张武[1] 吴胜付[1] 

机构地区：[1]马鞍山钢铁股份有限公司

出　　处：《安徽冶金》2016年第3期17-20,共4页Anhui Metallurgy

摘　　要：研究了不同焊接工艺条件下热冲压成形钢22MnB5焊点断裂的模式,结果表明,22MnB5点焊接头的断裂模式和结合强度受点焊过程中出现的3种不同类型的缺陷模式影响,即:结合线伸入、缩孔和内部飞溅。The fracture models of welds of hot stamping 22MnB5 steel with different welding processes were stud-ied. Results showed that the fracture model and conjunction strength of 22MnB5 steel are affected by three different types of defects during welding, which are stretch of conjunction line, contraction cavities and internal spattering.

关 键 词：热冲压成形钢 焊接 断裂模式 22MnB5 

分 类 号：TG156[金属学及工艺—热处理]