冲压用镀锌板的高功率光纤激光焊接  

High Power Fibre Laser Welding of Galvanized Drawing Sheet

作　　者：钟如涛[1] 陈浮[1] 张吉[1] 

机构地区：[1]武汉钢铁(集团)公司研究院,湖北武汉430080

出　　处：《武汉工程职业技术学院学报》2015年第1期22-24,57,共4页Journal of Wuhan Engineering Institute

摘　　要：采用IPG5000高功率光纤激光器研究了DX54D+Z、(DX54D+Z)+(H300LAD+Z)的激光焊接组织及性能。结果表明,DX54D+Z的焊缝组织为准多边形铁素体,焊缝最高硬度为150HV,焊缝纵向延伸率降低了约40%。(H300LAD+Z)+(DX54D+Z)焊缝组织为贝氏体,焊缝的最高硬度为265HV,焊缝的纵向延伸率比DX54D+Z母材降低约50%,比H300LAD+Z母材降低约15%。The laser welding microstructure and properties of DX54D ＋ Z and （H300LAD ＋ Z）＋ （DX54D＋Z） were studied by means of IPG5000 high power fiber lasers. The results show that the micro- structure of welding seam of DX54D＋ Z was quasi polygonal ferrite with the highest hardness of welding seam being 150HV, and with the longitudinal elongation of welding seam decreased by about 40%, and that the microstructure of welding seam of （H300LAD＋Z）＋ （DX54D＋Z） was bainite with the highest hardness of the welding seam being 265HV and the longitudinal elongation of welding seam being about 50% , which is lower than that of DX54D＋Z and 15% lower than that of H300LAD＋Z.

关 键 词：高功率光纤激光焊接 冲压用镀锌板 组织和性能 

分 类 号：TG456.7[金属学及工艺—焊接]