集装箱用钢SPAH的高功率光纤激光焊接  

High Power Optical Fiber Laser Welding of Container Steel SPAH

作　　者：钟如涛[1] 梁文[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2期1-3,共3页Journal of Wuhan Engineering Institute

摘　　要：采用IPGS000高功率光纤激光器研究了2mm集装箱用钢SPAH的激光焊接组织及性能。结果表明，最合适的焊接激光功率为1．5～3kW，熔合区和过热区都为贝氏体；正火区组织为贝氏体＋少量铁素体；最高硬度在过热区，为306HV呲，比母材提高了约50％。The laser welding microstructure and properties of 2mm container steel plate SPAH were studied with the help of IPG5000 high power optical fiber lasers. The results show that the most suitable laser welding power is 1.5- 3 kW, both of the microstrueture of fusion zone area and overheat zone are bainite,and the microstructure of normalized zone is bainite with a small amount of ferrite,and that the highest hardness of the welding is 306HV,which is about 50% higher than that of the base metal.

关 键 词：高功率光纤激光焊接 集装箱用钢SPAH 组织和性能 激光焊接 

分 类 号：TG456.7[金属学及工艺—焊接]